Windows
Analysis Report
SHIPPING DOC.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Suricata IDS alerts for network traffic
Yara detected AntiVM3
Yara detected FormBook
.NET source code contains potential unpacker
Drops VBS files to the startup folder
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Allocates memory with a write watch (potentially for evading sandboxes)
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
Creates a process in suspended mode (likely to inject code)
Creates a start menu entry (Start Menu\Programs\Startup)
Detected potential crypto function
Drops PE files
Enables debug privileges
Found WSH timer for Javascript or VBS script (likely evasive script)
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: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Stores files to the Windows start menu directory
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Classification
- System is w10x64
SHIPPING DOC.exe (PID: 7668 cmdline:
"C:\Users\ user\Deskt op\SHIPPIN G DOC.exe" MD5: 6E59935CF07F82CD386736133A6D1A35) InstallUtil.exe (PID: 7796 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Ins tallUtil.e xe" MD5: 5D4073B2EB6D217C19F2B22F21BF8D57) M4FGq0ceDE8wA.exe (PID: 6820 cmdline:
"C:\Progra m Files (x 86)\enkiNG NhhfdTWUbA LJeNXnmdRT AcRvTaVGhg ERHnAkOiuH E\M4FGq0ce DE8wA.exe" MD5: 9C98D1A23EFAF1B156A130CEA7D2EE3A) timeout.exe (PID: 6224 cmdline:
"C:\Window s\SysWOW64 \timeout.e xe" MD5: 976566BEEFCCA4A159ECBDB2D4B1A3E3) M4FGq0ceDE8wA.exe (PID: 6924 cmdline:
"C:\Progra m Files (x 86)\enkiNG NhhfdTWUbA LJeNXnmdRT AcRvTaVGhg ERHnAkOiuH E\OUhIybrK u1.exe" MD5: 9C98D1A23EFAF1B156A130CEA7D2EE3A) firefox.exe (PID: 7808 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
wscript.exe (PID: 8160 cmdline:
"C:\Window s\System32 \WScript.e xe" "C:\Us ers\user\A ppData\Roa ming\Micro soft\Windo ws\Start M enu\Progra ms\Startup \IsFixedSi ze.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) IsFixedSize.exe (PID: 6344 cmdline:
"C:\Users\ user\AppDa ta\Roaming \IsFixedSi ze.exe" MD5: 6E59935CF07F82CD386736133A6D1A35) InstallUtil.exe (PID: 6388 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Ins tallUtil.e xe" MD5: 5D4073B2EB6D217C19F2B22F21BF8D57)
- 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_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Click to see the 12 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security |
System Summary |
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Source: | Author: Margaritis Dimitrios (idea), Florian Roth (Nextron Systems), oscd.community: |
Source: | Author: Michael Haag: |
Data Obfuscation |
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Source: | Author: Joe Security: |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-04-15T18:45:31.342164+0200 | 2859622 | 1 | Exploit Kit Activity Detected | 104.21.64.1 | 80 | 192.168.2.5 | 49717 | TCP |
2025-04-15T18:45:34.033602+0200 | 2859622 | 1 | Exploit Kit Activity Detected | 104.21.64.1 | 80 | 192.168.2.5 | 49718 | TCP |
2025-04-15T18:45:36.917932+0200 | 2859622 | 1 | Exploit Kit Activity Detected | 104.21.64.1 | 80 | 192.168.2.5 | 49719 | TCP |
2025-04-15T18:45:39.540583+0200 | 2859622 | 1 | Exploit Kit Activity Detected | 104.21.64.1 | 80 | 192.168.2.5 | 49720 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-04-15T18:45:07.273310+0200 | 2856318 | 1 | A Network Trojan was detected | 192.168.2.5 | 49710 | 172.67.196.46 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Code function: | 0_2_04C11499 | |
Source: | Code function: | 0_2_04C114A8 | |
Source: | Code function: | 0_2_04C11C28 | |
Source: | Code function: | 0_2_04C11C38 | |
Source: | Code function: | 0_2_04C13D51 | |
Source: | Code function: | 3_2_05B85AD0 | |
Source: | Code function: | 3_2_05B85ACA |
Networking |
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