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Windows Analysis Report
rDetallesdenuev.exe

Overview

General Information

Sample name:	rDetallesdenuev.exe
Analysis ID:	1455407
MD5:	bc657d009d1f9dfdc3b09281f822eb05
SHA1:	05b149fee68f29baf0179b88cb1d46fc49767c43
SHA256:	ccc397c2bac77bd29db3182861a947bb4222b5ef9dc8f6f265bbf02449e5f15e
Tags:	exe
Infos:

Detection

AgentTesla, PureLog Stealer

Score:	100
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Found malware configuration

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Snort IDS alert for network traffic

Yara detected AgentTesla

Yara detected AntiVM3

Yara detected PureLog Stealer

.NET source code contains potential unpacker

AI detected suspicious sample

Check if machine is in data center or colocation facility

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Contains functionality to log keystrokes (.Net Source)

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: Invoke-Obfuscation CLIP+ Launcher

Sigma detected: Invoke-Obfuscation VAR+ Launcher

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to steal Mail credentials (via file / registry access)

Uses ipconfig to lookup or modify the Windows network settings

Yara detected Costura Assembly Loader

Yara detected Generic Downloader

Allocates memory with a write watch (potentially for evading sandboxes)

Checks if the current process is being debugged

Contains long sleeps (>= 3 min)

Creates a process in suspended mode (likely to inject code)

Detected TCP or UDP traffic on non-standard ports

Detected potential crypto function

Drops PE files

Enables debug privileges

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)

HTTP GET or POST without a user agent

IP address seen in connection with other malware

Internet Provider seen in connection with other malware

May check the online IP address of the machine

May sleep (evasive loops) to hinder dynamic analysis

Monitors certain registry keys / values for changes (often done to protect autostart functionality)

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)

Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)

Queries the volume information (name, serial number etc) of a device

Sample execution stops while process was sleeping (likely an evasion)

Sample file is different than original file name gathered from version info

Sigma detected: CurrentVersion Autorun Keys Modification

Sigma detected: Suspicious Outbound SMTP Connections

Uses 32bit PE files

Uses SMTP (mail sending)

Uses code obfuscation techniques (call, push, ret)

Yara detected Credential Stealer

Yara signature match

Classification

Process Tree

System is w10x64

rDetallesdenuev.exe (PID: 6048 cmdline: "C:\Users\user\Desktop\rDetallesdenuev.exe" MD5: BC657D009D1F9DFDC3B09281F822EB05)

cmd.exe (PID: 4956 cmdline: "C:\Windows\System32\cmd.exe" /c ipconfig /release MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)

conhost.exe (PID: 7088 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

ipconfig.exe (PID: 6776 cmdline: ipconfig /release MD5: 3A3B9A5E00EF6A3F83BF300E2B6B67BB)

rDetallesdenuev.exe (PID: 1864 cmdline: "C:\Users\user\Desktop\rDetallesdenuev.exe" MD5: BC657D009D1F9DFDC3B09281F822EB05)

cmd.exe (PID: 4980 cmdline: "C:\Windows\System32\cmd.exe" /c ipconfig /renew MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)

Nlbdjgdctg.exe (PID: 6152 cmdline: "C:\Users\user\AppData\Roaming\Nlbdjgdctg.exe" MD5: BC657D009D1F9DFDC3B09281F822EB05)

cmd.exe (PID: 6756 cmdline: "C:\Windows\System32\cmd.exe" /c ipconfig /release MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)

conhost.exe (PID: 5312 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

ipconfig.exe (PID: 5948 cmdline: ipconfig /release MD5: 3A3B9A5E00EF6A3F83BF300E2B6B67BB)

Nlbdjgdctg.exe (PID: 5836 cmdline: "C:\Users\user\AppData\Roaming\Nlbdjgdctg.exe" MD5: BC657D009D1F9DFDC3B09281F822EB05)

cmd.exe (PID: 428 cmdline: "C:\Windows\System32\cmd.exe" /c ipconfig /renew MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)

conhost.exe (PID: 6044 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

ipconfig.exe (PID: 6300 cmdline: ipconfig /renew MD5: 3A3B9A5E00EF6A3F83BF300E2B6B67BB)

Nlbdjgdctg.exe (PID: 4208 cmdline: "C:\Users\user\AppData\Roaming\Nlbdjgdctg.exe" MD5: BC657D009D1F9DFDC3B09281F822EB05)

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Agent Tesla, AgentTesla	A .NET based information stealer readily available to actors due to leaked builders. The malware is able to log keystrokes, can access the host's clipboard and crawls the disk for credentials or other valuable information. It has the capability to send information back to its C&C via HTTP(S), SMTP, FTP, or towards a Telegram channel.	SWEED	http://blog.nsfocus.net/sweed-611/ http://l1v1ngc0d3.wordpress.com/2021/11/12/agenttesla-dropped-via-nsis-installer/ http://ropgadget.com/posts/originlogger.html http://www.secureworks.com/research/threat-profiles/gold-galleon https://0xmrmagnezi.github.io/malware%20analysis/AgentTesla/	https://malpedia.caad.fkie.fraunhofer.de/details/win.agent_tesla

Malware Configuration

Threatname: Agenttesla

{"Exfil Mode": "SMTP", "Port": "587", "Host": "mail.100demoras.pt", "Username": "mariosilva100@100demoras.pt", "Password": "uJ}Y+wl}5B6K"}

Yara Signatures

Memory Dumps

Source	Rule	Description	Author
00000008.00000002.2338925965.0000000007701000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
00000005.00000002.3268479910.0000000002D31000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
00000005.00000002.3268479910.0000000002D31000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
00000000.00000002.2129103497.000000000726F000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
00000008.00000002.2330537527.0000000004FE5000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0000000D.00000002.3267796521.000000000313D000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
00000000.00000002.2156596247.0000000007B90000.00000004.08000000.00040000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
00000000.00000002.2112915654.000000000312B000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
00000000.00000002.2112915654.000000000312B000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
0000000D.00000002.3267796521.0000000003111000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
0000000D.00000002.3267796521.0000000003111000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
00000008.00000002.2315387667.000000000331D000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
00000000.00000002.2158526892.0000000008747000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
00000000.00000002.2158526892.0000000008747000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
00000005.00000002.3268479910.0000000002D5D000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
00000000.00000002.2115370374.0000000004B1D000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
00000000.00000002.2146768107.0000000007670000.00000004.08000000.00040000.00000000.sdmp	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
00000008.00000002.2338925965.0000000007611000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
00000008.00000002.2315387667.00000000035C1000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
00000008.00000002.2315387667.00000000035C1000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
00000000.00000002.2112915654.0000000002E75000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
00000000.00000002.2129103497.0000000006FE1000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
00000008.00000002.2350264475.0000000008E61000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
00000008.00000002.2350264475.0000000008E61000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
00000000.00000002.2115370374.0000000004658000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
00000000.00000002.2129103497.0000000006331000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
Process Memory Space: rDetallesdenuev.exe PID: 6048	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
Process Memory Space: rDetallesdenuev.exe PID: 6048	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
Process Memory Space: rDetallesdenuev.exe PID: 6048	JoeSecurity_AntiVM_3	Yara detected AntiVM_3	Joe Security
Process Memory Space: rDetallesdenuev.exe PID: 6048	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
Process Memory Space: rDetallesdenuev.exe PID: 1864	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
Process Memory Space: rDetallesdenuev.exe PID: 1864	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
Process Memory Space: Nlbdjgdctg.exe PID: 6152	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
Process Memory Space: Nlbdjgdctg.exe PID: 6152	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
Process Memory Space: Nlbdjgdctg.exe PID: 6152	JoeSecurity_AntiVM_3	Yara detected AntiVM_3	Joe Security
Process Memory Space: Nlbdjgdctg.exe PID: 6152	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
Process Memory Space: Nlbdjgdctg.exe PID: 5836	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
Process Memory Space: Nlbdjgdctg.exe PID: 5836	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
Click to see the 33 entries

Unpacked PEs

Source	Rule	Description	Author	Strings
0.2.rDetallesdenuev.exe.4c0a258.7.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
8.2.Nlbdjgdctg.exe.50afee0.3.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0.2.rDetallesdenuev.exe.7b90000.17.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
8.2.Nlbdjgdctg.exe.7661078.10.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0.2.rDetallesdenuev.exe.2f07ee8.1.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
8.2.Nlbdjgdctg.exe.33affe0.0.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0.2.rDetallesdenuev.exe.726fad0.15.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
8.2.Nlbdjgdctg.exe.7701098.13.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0.2.rDetallesdenuev.exe.875cee8.20.unpack	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
0.2.rDetallesdenuev.exe.875cee8.20.unpack	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
0.2.rDetallesdenuev.exe.875cee8.20.unpack	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID	Detects executables referencing Windows vault credential objects. Observed in infostealers	ditekSHen	0x33ceb:$s1: 2F1A6504-0641-44CF-8BB5-3612D865F2E5 0x33d5d:$s2: 3CCD5499-87A8-4B10-A215-608888DD3B55 0x33de7:$s3: 154E23D0-C644-4E6F-8CE6-5069272F999F 0x33e79:$s4: 4BF4C442-9B8A-41A0-B380-DD4A704DDB28 0x33ee3:$s5: 77BC582B-F0A6-4E15-4E80-61736B6F3B29 0x33f55:$s6: E69D7838-91B5-4FC9-89D5-230D4D4CC2BC 0x33feb:$s7: 3E0E35BE-1B77-43E7-B873-AED901B6275B 0x3407b:$s8: 3C886FF3-2669-4AA2-A8FB-3F6759A77548
0.2.rDetallesdenuev.exe.717fa90.14.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0.2.rDetallesdenuev.exe.6be1038.12.raw.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
13.2.Nlbdjgdctg.exe.400000.0.unpack	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
13.2.Nlbdjgdctg.exe.400000.0.unpack	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID	Detects executables referencing Windows vault credential objects. Observed in infostealers	ditekSHen	0x35aeb:$s1: 2F1A6504-0641-44CF-8BB5-3612D865F2E5 0x35b5d:$s2: 3CCD5499-87A8-4B10-A215-608888DD3B55 0x35be7:$s3: 154E23D0-C644-4E6F-8CE6-5069272F999F 0x35c79:$s4: 4BF4C442-9B8A-41A0-B380-DD4A704DDB28 0x35ce3:$s5: 77BC582B-F0A6-4E15-4E80-61736B6F3B29 0x35d55:$s6: E69D7838-91B5-4FC9-89D5-230D4D4CC2BC 0x35deb:$s7: 3E0E35BE-1B77-43E7-B873-AED901B6275B 0x35e7b:$s8: 3C886FF3-2669-4AA2-A8FB-3F6759A77548
0.2.rDetallesdenuev.exe.875cee8.20.raw.unpack	JoeSecurity_CredentialStealer	Yara detected Credential Stealer	Joe Security
0.2.rDetallesdenuev.exe.875cee8.20.raw.unpack	JoeSecurity_GenericDownloader_1	Yara detected Generic Downloader	Joe Security
0.2.rDetallesdenuev.exe.875cee8.20.raw.unpack	JoeSecurity_AgentTesla_1	Yara detected AgentTesla	Joe Security
0.2.rDetallesdenuev.exe.875cee8.20.raw.unpack	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID	Detects executables referencing Windows vault credential objects. Observed in infostealers	ditekSHen	0x35aeb:$s1: 2F1A6504-0641-44CF-8BB5-3612D865F2E5 0x72d0b:$s1: 2F1A6504-0641-44CF-8BB5-3612D865F2E5 0x35b5d:$s2: 3CCD5499-87A8-4B10-A215-608888DD3B55 0x72d7d:$s2: 3CCD5499-87A8-4B10-A215-608888DD3B55 0x35be7:$s3: 154E23D0-C644-4E6F-8CE6-5069272F999F 0x72e07:$s3: 154E23D0-C644-4E6F-8CE6-5069272F999F 0x35c79:$s4: 4BF4C442-9B8A-41A0-B380-DD4A704DDB28 0x72e99:$s4: 4BF4C442-9B8A-41A0-B380-DD4A704DDB28 0x35ce3:$s5: 77BC582B-F0A6-4E15-4E80-61736B6F3B29 0x72f03:$s5: 77BC582B-F0A6-4E15-4E80-61736B6F3B29 0x35d55:$s6: E69D7838-91B5-4FC9-89D5-230D4D4CC2BC 0x72f75:$s6: E69D7838-91B5-4FC9-89D5-230D4D4CC2BC 0x35deb:$s7: 3E0E35BE-1B77-43E7-B873-AED901B6275B 0x7300b:$s7: 3E0E35BE-1B77-43E7-B873-AED901B6275B 0x35e7b:$s8: 3C886FF3-2669-4AA2-A8FB-3F6759A77548 0x7309b:$s8: 3C886FF3-2669-4AA2-A8FB-3F6759A77548
0.2.rDetallesdenuev.exe.48e9630.6.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
0.2.rDetallesdenuev.exe.2f07ee8.1.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0.2.rDetallesdenuev.exe.71cfab0.11.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
8.2.Nlbdjgdctg.exe.33affe0.0.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0.2.rDetallesdenuev.exe.717fa90.14.raw.unpack	JoeSecurity_CosturaAssemblyLoader	Yara detected Costura Assembly Loader	Joe Security
0.2.rDetallesdenuev.exe.45295b0.8.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
0.2.rDetallesdenuev.exe.7670000.16.raw.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
0.2.rDetallesdenuev.exe.46e9610.4.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
0.2.rDetallesdenuev.exe.7670000.16.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
0.2.rDetallesdenuev.exe.6be1038.12.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
0.2.rDetallesdenuev.exe.45695d0.5.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security
0.2.rDetallesdenuev.exe.48e9630.6.raw.unpack	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report
rDetallesdenuev.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Threat Intel

Malware Configuration

Threatname: Agenttesla

Yara Signatures

Memory Dumps

Unpacked PEs

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report rDetallesdenuev.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Threat Intel

Malware Configuration

Threatname: Agenttesla

Yara Signatures

Memory Dumps

Unpacked PEs

Windows Analysis Report
rDetallesdenuev.exe