MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ad644da69f848609475d2a3d773eadf646d4c1e1cb20e4b87422d224e2ccbe32. 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: 9
| SHA256 hash: | ad644da69f848609475d2a3d773eadf646d4c1e1cb20e4b87422d224e2ccbe32 |
|---|---|
| SHA3-384 hash: | c4822398ed2e499e432265649e8c72cc2996ad51d5ce65cdcf2468fb304c2c578a3c19c44f485fda8cf930203683da6c |
| SHA1 hash: | 638f4727a99bb389e8e6a77c4fbee17bdc19fc60 |
| MD5 hash: | 058e6f06a51e22bbc975eecf35c34844 |
| humanhash: | queen-carbon-angel-alanine |
| File name: | PO# 4415902670.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 555'008 bytes |
| First seen: | 2020-11-26 06:44:22 UTC |
| Last seen: | 2020-11-26 08:42:49 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 12288:Dn5PqttqmMVfmMNfhk2uI9TGQEZNH1BVjYeK:LlqSmMVfmMNfhk275WNVUh |
| Threatray | 3'053 similar samples on MalwareBazaar |
| TLSH | 5FC45B2377854A95C454F1B706F9EF96336AFAC7F310871A234AC6E499832CA6F0D349 |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
abuse_ch
Malspam distributing Formbook:HELO: sopo.com
Sending IP: 103.225.25.31
From: Suma S <sales@adamvital.ae>
Subject: PO# 4415902670
Attachment: PO 4415902670.xls.z (contains "PO# 4415902670.exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a file
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a system process
Result
Gathering data
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Signature
.NET source code contains very large array initializations
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2020-11-26 06:45:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'043 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Suspicious use of NtCreateProcessExOtherParentProcess
Malware Config
C2 Extraction:
http://www.klingenwacht.com/mlg/
Unpacked files
SH256 hash:
ad644da69f848609475d2a3d773eadf646d4c1e1cb20e4b87422d224e2ccbe32
MD5 hash:
058e6f06a51e22bbc975eecf35c34844
SHA1 hash:
638f4727a99bb389e8e6a77c4fbee17bdc19fc60
SH256 hash:
88b690cafb2691f843342b0c89bb599357377cf61e25bea02ddb3e6322a91c3a
MD5 hash:
a228bf2361708bb52c571cd0315ea93e
SHA1 hash:
f559d13f67235d87bd089fb7f867de1a6abc4b82
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
4f690f3cf792f24a571f09740cf25d0979bde8c11180a26864056643c30479cd
MD5 hash:
304cc4a1948539064cfec5b70bd83e21
SHA1 hash:
32b3754f52323fd71b8349f01c9dd4bc4fecd880
SH256 hash:
9790a6aa3d28d77d320c8f32938122c1212b7f6291daa7511f854a3fcd0fb037
MD5 hash:
6e53bc3c0364eefd1d448d25e026975d
SHA1 hash:
f11ea87b0638531f442b113feb19dbaae81ad518
SH256 hash:
542282ed737d2cb55e3cb59d05e58e8dbf6473d63461194a9ba597f0f3eb5d75
MD5 hash:
0ab09caf48c9dcbcbd53aef80493abd2
SHA1 hash:
fd985c8ed98d443fde035be26592b92662b9c5ea
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: | Formbook |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
| Rule name: | win_formbook_g0 |
|---|---|
| Author: | Slavo Greminger, SWITCH-CERT |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
Comments
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