MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5aa9b4f53d0741990b4cfe24eb6010ffa9c68bd60100e77e0fa5e6b3dc66a06b. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 5aa9b4f53d0741990b4cfe24eb6010ffa9c68bd60100e77e0fa5e6b3dc66a06b
SHA3-384 hash: ba9302245ea76ae98c8a305ee54f753d5e38148bfb7a9c0a7708b319d80c3fc28e14664162912279af83ed6210fbf88e
SHA1 hash: e332d785e90b0537c487d056017c10beb4277b49
MD5 hash: 5ede10436c42cba96a2803912624eebb
humanhash: friend-wolfram-oxygen-missouri
File name:gWc98NyHyT0Uu2x.exe
Download: download sample
Signature Formbook
File size:623'104 bytes
First seen:2022-12-28 19:10:29 UTC
Last seen:2022-12-28 20:42:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:qBMPrEQL6agYwDzSnaWdIGXdHxFKZ9v5OZyXqtI2t2q:2727dIGXdEB5hXQ
Threatray 20'033 similar samples on MalwareBazaar
TLSH T179D4124C22B886A0DDB893FAE172420243F5F915B616E78C4DCB34DA0A52BCD5F16B77
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon daa298d6d6b8a294 (4 x Formbook, 3 x AgentTesla, 1 x Loki)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
171
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
gWc98NyHyT0Uu2x.exe
Verdict:
Malicious activity
Analysis date:
2022-12-28 19:15:19 UTC
Tags:
formbook xloader trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-12-20 02:34:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:obee rat spyware stealer trojan
Behaviour
Gathers network information
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
fa1e44aba71d2afbbd276a474b8d0e37daed8ef9f28c61929621df0cb1f12c80
MD5 hash:
7c6ab12d47dca672a08e56982de832b3
SHA1 hash:
252991edea90e88c1c738cd3b717ad248479d58d
Detections:
XLoader win_formbook_auto win_formbook_g0
SH256 hash:
6fa835c6691b47a19ce07a8739e39cb1934212043c0e0687c53af5d7cdc6dd5e
MD5 hash:
576f6069aff285d0375b96bb058ab5d0
SHA1 hash:
f8b63121f8371d2f6c79b15dd5ba4eb53e1f92bf
SH256 hash:
fc6485350cf55dc14ecbfd9b91b7a9979f61023b4104101e9f351caa6c73abaa
MD5 hash:
6c3fdb2b5d93cf814ea1b6ca05a0efcf
SHA1 hash:
f8ae5f9fa1c9b6b0e47b2f0873d2ee3373e0ebf5
SH256 hash:
28d670dc2a95724bcbba914bfbf4504e5783f0a4cfec57fd69434812e73a6aa3
MD5 hash:
99cc7e7ba798d6dbbf0b068a5108a813
SHA1 hash:
8cc414236f497717840942a0fd391b00ea1016d7
SH256 hash:
795554ea062164318db49dc8fe221dfa5db0fef0be64df851ebb29e9e65ed962
MD5 hash:
05a08682ec53553579b953dec1178ef5
SHA1 hash:
37a216711ff2572102eff5a8b7fe7998cdc22124
SH256 hash:
ff1b42ea7d56a37eae801adbddb7116f52a4664c0b41302736f522852edc2747
MD5 hash:
89ac57478044c57c7195943116a521e0
SHA1 hash:
1ff2bafeed795423e3538d810bda8e1e3fcdcfa5
SH256 hash:
5aa9b4f53d0741990b4cfe24eb6010ffa9c68bd60100e77e0fa5e6b3dc66a06b
MD5 hash:
5ede10436c42cba96a2803912624eebb
SHA1 hash:
e332d785e90b0537c487d056017c10beb4277b49
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 5aa9b4f53d0741990b4cfe24eb6010ffa9c68bd60100e77e0fa5e6b3dc66a06b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments