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Windows
Analysis Report
Axis Bank - 67 Account Pending Bank Receipt.pdf.exe
Overview
General Information
Detection
FormBook, PureLog Stealer
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Antivirus detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Double Extension File Execution
Snort IDS alert for network traffic
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Allocates memory with a write watch (potentially for evading sandboxes)
Binary contains a suspicious time stamp
Checks if the current process is being debugged
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates processes with suspicious names
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)
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
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: Powershell Defender Exclusion
Sigma detected: Suspicious Add Scheduled Task Parent
Sigma detected: Suspicious Schtasks From Env Var Folder
Tries to load missing DLLs
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
- Axis Bank - 67 Account Pending Bank Receipt.pdf.exe (PID: 3800 cmdline:
"C:\Users\ user\Deskt op\Axis Ba nk - 67 Ac count Pend ing Bank R eceipt.pdf .exe" MD5: 801EDB88D052B961F74DB0F5CF66E873) - powershell.exe (PID: 6488 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\Des ktop\Axis Bank - 67 Account Pe nding Bank Receipt.p df.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 5076 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 2132 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h "C:\User s\user\App Data\Roami ng\OkLsTLa TTZVp.exe" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 1948 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - WmiPrvSE.exe (PID: 7080 cmdline:
C:\Windows \system32\ wbem\wmipr vse.exe -s ecured -Em bedding MD5: 60FF40CFD7FB8FE41EE4FE9AE5FE1C51) - schtasks.exe (PID: 5800 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\OkLs TLaTTZVp" /XML "C:\U sers\user\ AppData\Lo cal\Temp\t mp566C.tmp " MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 5532 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - Axis Bank - 67 Account Pending Bank Receipt.pdf.exe (PID: 7148 cmdline:
"C:\Users\ user\Deskt op\Axis Ba nk - 67 Ac count Pend ing Bank R eceipt.pdf .exe" MD5: 801EDB88D052B961F74DB0F5CF66E873) - Axis Bank - 67 Account Pending Bank Receipt.pdf.exe (PID: 4208 cmdline:
"C:\Users\ user\Deskt op\Axis Ba nk - 67 Ac count Pend ing Bank R eceipt.pdf .exe" MD5: 801EDB88D052B961F74DB0F5CF66E873) - IiPvZGpNYiTIbQIQLaPZIDOIY.exe (PID: 1484 cmdline:
"C:\Progra m Files (x 86)\lMrsFa ZtIHxsydIt eCamjNxAcl dBeoDWTXWt XDtyOrcuni OBQzOlkosu fHKzhKUlRk aqQ\IiPvZG pNYiTIbQIQ LaPZIDOIY. exe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - sc.exe (PID: 5828 cmdline:
"C:\Window s\SysWOW64 \sc.exe" MD5: D9D7684B8431A0D10D0E76FE9F5FFEC8) - IiPvZGpNYiTIbQIQLaPZIDOIY.exe (PID: 6708 cmdline:
"C:\Progra m Files (x 86)\lMrsFa ZtIHxsydIt eCamjNxAcl dBeoDWTXWt XDtyOrcuni OBQzOlkosu fHKzhKUlRk aqQ\IiPvZG pNYiTIbQIQ LaPZIDOIY. exe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - firefox.exe (PID: 4372 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
- OkLsTLaTTZVp.exe (PID: 7096 cmdline:
C:\Users\u ser\AppDat a\Roaming\ OkLsTLaTTZ Vp.exe MD5: 801EDB88D052B961F74DB0F5CF66E873) - schtasks.exe (PID: 1080 cmdline:
"C:\Window s\System32 \schtasks. exe" /Crea te /TN "Up dates\OkLs TLaTTZVp" /XML "C:\U sers\user\ AppData\Lo cal\Temp\t mp6A22.tmp " MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 5044 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - OkLsTLaTTZVp.exe (PID: 6128 cmdline:
"C:\Users\ user\AppDa ta\Roaming \OkLsTLaTT ZVp.exe" MD5: 801EDB88D052B961F74DB0F5CF66E873) - IiPvZGpNYiTIbQIQLaPZIDOIY.exe (PID: 3420 cmdline:
"C:\Progra m Files (x 86)\lMrsFa ZtIHxsydIt eCamjNxAcl dBeoDWTXWt XDtyOrcuni OBQzOlkosu fHKzhKUlRk aqQ\IiPvZG pNYiTIbQIQ LaPZIDOIY. exe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - sc.exe (PID: 4032 cmdline:
"C:\Window s\SysWOW64 \sc.exe" MD5: D9D7684B8431A0D10D0E76FE9F5FFEC8)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Formbook, Formbo | FormBook contains a unique crypter RunPE that has unique behavioral patterns subject to detection. It was initially called "Babushka Crypter" by Insidemalware. |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
Click to see the 22 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
JoeSecurity_PureLogStealer | Yara detected PureLog Stealer | Joe Security | ||
Click to see the 5 entries |
System Summary |
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Source: | Author: Florian Roth (Nextron Systems), @blu3_team (idea), Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Persistence and Installation Behavior |
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Source: | Author: Joe Security: |
Timestamp: | 03/29/24-14:23:47.291642 |
SID: | 2855464 |
Source Port: | 49711 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 03/29/24-14:23:44.574126 |
SID: | 2856318 |
Source Port: | 49710 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 03/29/24-14:24:02.472505 |
SID: | 2855464 |
Source Port: | 49716 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 03/29/24-14:24:07.900556 |
SID: | 2855465 |
Source Port: | 49718 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 03/29/24-14:23:44.574126 |
SID: | 2855464 |
Source Port: | 49710 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 03/29/24-14:23:52.713573 |
SID: | 2855465 |
Source Port: | 49713 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 03/29/24-14:23:27.989423 |
SID: | 2855465 |
Source Port: | 49709 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 03/29/24-14:23:58.698471 |
SID: | 2855464 |
Source Port: | 49715 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link | ||
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Source: | Code function: | 14_2_02B4CD50 |
Source: | File opened: | Jump to behavior | ||
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Source: | File opened: | Jump to behavior | ||
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Source: | File opened: | Jump to behavior |
Source: | Code function: | 14_2_02B3AE20 | |
Source: | Code function: | 14_2_02B42E40 | |
Source: | Code function: | 14_2_02B42E33 | |
Source: | Code function: | 14_2_02B42E19 |
Networking |
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