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Windows
Analysis Report
PO_CCTEB77.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Yara detected AntiVM3
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Initial sample is a PE file and has a suspicious name
Writes to foreign memory regions
Machine Learning detection for sample
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Queues an APC in another process (thread injection)
.NET source code contains very large array initializations
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Abnormal high CPU Usage
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)
Sample file is different than original file name gathered from version info
Contains functionality to read the PEB
Checks if the current process is being debugged
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
- System is w10x64
- PO_CCTEB77.exe (PID: 5628 cmdline:
C:\Users\u ser\Deskto p\PO_CCTEB 77.exe MD5: 7391F0C0A4CD63ECEDEF46DBB072542C) - PO_CCTEB77.exe (PID: 3008 cmdline:
C:\Users\u ser\Deskto p\PO_CCTEB 77.exe MD5: 7391F0C0A4CD63ECEDEF46DBB072542C) - AQhPMwWbqUlSTgiqGOPNvqG.exe (PID: 5784 cmdline:
"C:\Progra m Files (x 86)\dLeRhw taQoqFGcff DaFNqRqHSz FuxNdiNwlQ ivrH\AQhPM wWbqUlSTgi qGOPNvqG.e xe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - isoburn.exe (PID: 5756 cmdline:
C:\Windows \SysWOW64\ isoburn.ex e MD5: BF19DD525C7D23CAFC086E9CCB9C06C6) - AQhPMwWbqUlSTgiqGOPNvqG.exe (PID: 1600 cmdline:
"C:\Progra m Files (x 86)\dLeRhw taQoqFGcff DaFNqRqHSz FuxNdiNwlQ ivrH\AQhPM wWbqUlSTgi qGOPNvqG.e xe" MD5: 32B8AD6ECA9094891E792631BAEA9717) - firefox.exe (PID: 4676 cmdline:
C:\Program Files\Moz illa Firef ox\Firefox .exe MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
- 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_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
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 | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
|
⊘No Sigma rule has matched
⊘No Snort rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Code function: | 5_2_0301C280 |
Source: | Code function: | 5_2_03011A10 | |
Source: | Code function: | 5_2_030099C0 | |
Source: | Code function: | 5_2_0300E2BF |
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