MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e43a83a5cffdeb8d46e2e4cab21793cc15f2309f2fabe2d108d9536deae4757. 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
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SHA256 hash: 8e43a83a5cffdeb8d46e2e4cab21793cc15f2309f2fabe2d108d9536deae4757
SHA3-384 hash: a083be9e3db8bb6cafd10fd704cb42ba9b3d1c3b9994ba59feaa506e9f7478661f3557c1ccc46c06155e5ec35162cbc3
SHA1 hash: 5a67e30e31081455cc08c6d9d47ba194b2b5c68e
MD5 hash: ea743113b6e1c949b44c5efad6f1303b
humanhash: nevada-blossom-dakota-hot
File name:Purchase_Order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:832'512 bytes
First seen:2022-03-14 08:47:03 UTC
Last seen:2022-03-14 11:22:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:uZt3Zy3WD5kP3JLaNjFdTqBlPvIRVRKrale3F25EZ0q5PlwKfTLUYiHFE:QD5kvJLaNBIPvIRVRKYUwI59biW
Threatray 14'928 similar samples on MalwareBazaar
TLSH T126057CE229EF501DF377ABB52FC4F8CE98AAF973151A70CB15510B368422940CD62B76
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/250007/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.28030.374.1671.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/622f01100cd58dbd9295062e/reports/2d4a6aed-23da-4300-9883-fa48ab551b03/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b5d34d61-ef7a-4e4f-8487-3d1e90e68a9c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/955888
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 588369 Sample: Purchase_Order.exe Startdate: 14/03/2022 Architecture: WINDOWS Score: 100 31 www.onestopfitnfine.com 2->31 33 onestopfitnfine.com 2->33 35 Multi AV Scanner detection for domain / URL 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 8 other signatures 2->41 11 Purchase_Order.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Purchase_Order.exe.log, ASCII 11->29 dropped 51 Tries to detect virtualization through RDTSC time measurements 11->51 53 Injects a PE file into a foreign processes 11->53 15 Purchase_Order.exe 11->15         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 15->18 injected process9 process10 20 mstsc.exe 18->20         started        23 autoconv.exe 18->23         started        signatures11 43 Self deletion via cmd delete 20->43 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49 25 cmd.exe 1 20->25         started        process12 process13 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8e43a83a5cffdeb8d46e2e4cab21793cc15f2309f2fabe2d108d9536deae4757/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-10 15:45:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rzb2qos477plrvdofzgkwilzhtav6iyj6l5l4liqrwktnxvoi5lq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
012ac67f5277ccbad1b30abc6e5288046db94d7cfdca31a3cb7197582ce5a480
Formbook
03231087b8d197ac9adff7250c8ceb9c1e6d604c008e5622de78d7e1fcc78c1c
Formbook
545d130d10ca2961ab5d1f3072049cea68154c9ed04d6b7fa408f7c81be10c2a
Formbook
6a68426f18f239950d5bb0d82223890b44ea10de5a5fa83294457dd3dcdc5068
Formbook
7c9612e73117eb9b9654e161c5d5e8e629fe116422ab512186707b9c31a69d47
Formbook
9e41bc1734c4bc894acdc9c08568cb2f1cd01078fa9b5f30d6f18c6383c22863
Formbook
afdf1b728a94beb99d17537a9caa1cad644b86725578ac3fb350cf30c9441e7b
Formbook
e3040d081274f69ab19b0ef88fe0f097350ab57e015b9e6e8edc0de2a8a7f9d3
Formbook
f725b6a2466a6f4c7084eeab5994e30b8ef836633c1a84d85c1899deb1808d3c
Formbook
+ 14'918 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ct2t loader rat suricata
Link:
https://tria.ge/reports/220314-kpwryafhar/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
.NET Reactor proctector
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
9e083f95f2a93b1c1f16a9946e8816347ee9c8a411decd05af853d98766e334a
MD5 hash:
07a7f236714b348e39a803e60940220f
SHA1 hash:
2283e45e6576af6a6d4f55f4cfa592455053a478
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/312c524d-a2b6-437b-8797-0840da4a0eb5/
Parent samples :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 hash:
2f2791992743065fca9bbb79b9d673cb0a56bceb778653b5a13242d91d7e1937
MD5 hash:
ee98926434c320c724e9de10d905ada5
SHA1 hash:
c33efaaab0ad1322b8ce3494158831ce388cda2a
Link:
https://www.unpac.me/results/312c524d-a2b6-437b-8797-0840da4a0eb5/
SH256 hash:
ba084e577ea7bf89dc26a496495a05cc0f3b8ccd6764f973809b67c4296bb59e
MD5 hash:
6daa40afb01d2aac5e62f891472eb79f
SHA1 hash:
a03475cdb3cd10b7f4920ed495ee3993be04e1da
Link:
https://www.unpac.me/results/312c524d-a2b6-437b-8797-0840da4a0eb5/
SH256 hash:
8392cf9ac34582ce7389ba6fd07bfe12a2d007f2bdda1ae706098c04c83fd759
MD5 hash:
e0398e7158e952c5b71b6140b8b4f862
SHA1 hash:
8650cc62a5b120431e6c9f61b521da933b56d7f4
Link:
https://www.unpac.me/results/312c524d-a2b6-437b-8797-0840da4a0eb5/
SH256 hash:
9b00e2fa33ad72dec22a5e107ab6886da72bbe0bed89a721e877c1dc3ce6a662
MD5 hash:
b4c9c16228f0ee1de70ffc6264fb720c
SHA1 hash:
437049e452a511e220abdb32df695cdf07f5a7d0
Link:
https://www.unpac.me/results/312c524d-a2b6-437b-8797-0840da4a0eb5/
SH256 hash:
8e43a83a5cffdeb8d46e2e4cab21793cc15f2309f2fabe2d108d9536deae4757
MD5 hash:
ea743113b6e1c949b44c5efad6f1303b
SHA1 hash:
5a67e30e31081455cc08c6d9d47ba194b2b5c68e
Link:
https://www.unpac.me/results/312c524d-a2b6-437b-8797-0840da4a0eb5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/8e43a83a5cffdeb8d46e2e4cab21793cc15f2309f2fabe2d108d9536deae4757

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
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Rule name:Skystars_Malware_Imphash
Create hunting rule
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 8e43a83a5cffdeb8d46e2e4cab21793cc15f2309f2fabe2d108d9536deae4757

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/250007/

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