Windows
Analysis Report
AWB_Invoice.exe
Overview
General Information
Detection
FormBook, GuLoader
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)
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Yara detected GuLoader
Snort IDS alert for network traffic
Sample uses process hollowing technique
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
Tries to detect Any.run
Injects a PE file into a foreign processes
Queues an APC in another process (thread injection)
Modifies the context of a thread in another process (thread injection)
Found potential ransomware demand text
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Contains functionality to shutdown / reboot the system
Uses code obfuscation techniques (call, push, ret)
PE file contains sections with non-standard names
Internet Provider seen in connection with other malware
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
Contains functionality to dynamically determine API calls
Found dropped PE file which has not been started or loaded
HTTP GET or POST without a user agent
Contains functionality for execution timing, often used to detect debuggers
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Sample file is different than original file name gathered from version info
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Checks if the current process is being debugged
PE / OLE file has an invalid certificate
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)
Contains functionality for read data from the clipboard
Classification
- System is w10x64native
AWB_Invoice.exe (PID: 6108 cmdline:
C:\Users\u ser\Deskto p\AWB_Invo ice.exe MD5: 7AF40E9FBF9F324EA0A2DB18268E592C) AWB_Invoice.exe (PID: 4984 cmdline:
C:\Users\u ser\Deskto p\AWB_Invo ice.exe MD5: 7AF40E9FBF9F324EA0A2DB18268E592C) RAVCpl64.exe (PID: 7740 cmdline:
"C:\Progra m Files\Re altek\Audi o\HDA\RAVC pl64.exe" -s MD5: 731FB4B2E5AFBCADAABB80D642E056AC) control.exe (PID: 8968 cmdline:
C:\Windows \SysWOW64\ control.ex e MD5: 4DBD69D4C9DA5AAAC731F518EF8EBEA0) explorer.exe (PID: 4844 cmdline:
C:\Windows \Explorer. EXE MD5: 5EA66FF5AE5612F921BC9DA23BAC95F7) firefox.exe (PID: 4436 cmdline:
C:\Program Files\Moz illa Firef ox\Firefox .exe MD5: FA9F4FC5D7ECAB5A20BF7A9D1251C851)
- 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. |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
CloudEyE, GuLoader | CloudEyE (initially named GuLoader) is a small VB5/6 downloader. It typically downloads RATs/Stealers, such as Agent Tesla, Arkei/Vidar, Formbook, Lokibot, Netwire and Remcos, often but not always from Google Drive. The downloaded payload is xored. | No Attribution |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Click to see the 12 entries |
⊘No Sigma rule has matched
Timestamp: | 192.168.11.2054.159.4.22649877802031449 04/07/23-15:05:57.890423 |
SID: | 2031449 |
Source Port: | 49877 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20122.201.127.149864802031453 04/07/23-15:03:54.747862 |
SID: | 2031453 |
Source Port: | 49864 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20124.71.228.14549852802018752 04/07/23-15:02:49.669494 |
SID: | 2018752 |
Source Port: | 49852 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20122.201.127.149864802031412 04/07/23-15:03:54.747862 |
SID: | 2031412 |
Source Port: | 49864 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.209.9.9.955379532023883 04/07/23-15:03:29.412332 |
SID: | 2023883 |
Source Port: | 55379 |
Destination Port: | 53 |
Protocol: | UDP |
Classtype: | Potentially Bad Traffic |
Timestamp: | 192.168.11.20122.201.127.149920802031412 04/07/23-15:09:14.069002 |
SID: | 2031412 |
Source Port: | 49920 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20122.201.127.149864802031449 04/07/23-15:03:54.747862 |
SID: | 2031449 |
Source Port: | 49864 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20122.201.127.149920802031453 04/07/23-15:09:14.069002 |
SID: | 2031453 |
Source Port: | 49920 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2054.159.4.22649877802031412 04/07/23-15:05:57.890423 |
SID: | 2031412 |
Source Port: | 49877 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.20122.201.127.149920802031449 04/07/23-15:09:14.069002 |
SID: | 2031449 |
Source Port: | 49920 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.11.2054.159.4.22649877802031453 04/07/23-15:05:57.890423 |
SID: | 2031453 |
Source Port: | 49877 |
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: | 1_2_00405C49 | |
Source: | Code function: | 1_2_00406873 | |
Source: | Code function: | 1_2_0040290B |
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