MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b15532a660090cc54e4f9f2be695da798d85a00a0aac366f1edfb665687048b8. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: b15532a660090cc54e4f9f2be695da798d85a00a0aac366f1edfb665687048b8
SHA3-384 hash: c9ad9d95fe69f4d8b3f7ccee490d0ace3ec33844e0ba2401272f469fe2f382d40b5e49d50daedb29ab14a88f1ad3e85e
SHA1 hash: 4523a4d509ea47d45bd14e7ca1d495463f8f8eb3
MD5 hash: 25a4a2eed28102497ad0e0b3f22ed54c
humanhash: spaghetti-ink-high-wyoming
File name:Purchase_Order.exe
Download: download sample
Signature Formbook
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File size:909'824 bytes
First seen:2022-03-01 12:22:20 UTC
Last seen:2022-03-01 14:46:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:3aZ5RIw7QT5VmaqrR5PJaOPqb0x6GhC6Y9g5cKJZBI9FgD/RxLYcPhVi/9qzKR/W:3A7GkP5PJaOoSCze3ZGknPh
Threatray 14'410 similar samples on MalwareBazaar
TLSH T1C315AF4834E6207DE4368BB1CAD4EFE0DB69F262D54960B250020E599A0DBFDCE45EFD
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
5
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/245789/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.GSK.genEldorado.7067.25044.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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/621e1029b94fb38cb42e3c9e/reports/5c812a58-cc84-4028-8f8a-80358f2cd7f3/overview
Result
Verdict:
UNKNOWN
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c14b8841-c15f-4f4d-bdce-b1a93584d35b
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/948134
Signature
.NET source code contains potential unpacker
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 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: 580615 Sample: Purchase_Order.exe Startdate: 01/03/2022 Architecture: WINDOWS Score: 100 31 store-images.s-microsoft.com 2->31 33 Found malware configuration 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 8 other signatures 2->39 11 Purchase_Order.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Purchase_Order.exe.log, ASCII 11->29 dropped 49 Tries to detect virtualization through RDTSC time measurements 11->49 51 Injects a PE file into a foreign processes 11->51 15 Purchase_Order.exe 11->15         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 15->53 55 Maps a DLL or memory area into another process 15->55 57 Sample uses process hollowing technique 15->57 59 Queues an APC in another process (thread injection) 15->59 18 explorer.exe 15->18 injected process9 process10 20 chkdsk.exe 18->20         started        signatures11 41 Self deletion via cmd delete 20->41 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        25 explorer.exe 118 20->25         started        process12 process13 27 conhost.exe 23->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/b15532a660090cc54e4f9f2be695da798d85a00a0aac366f1edfb665687048b8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-01 10:09:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
22 of 27 (81.48%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wfktfjtabegmktspt4v6nfo2pggyliakbkwdm3y6363gk2dqjc4a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
28562d1e97597dbe302d550277e91bd4aa6869bd3d356668bc7c48b2b6eaa3d1
Formbook
4e6016946df7673ef209683e2c3902cef815441b69925920a04d0600cb7fd0bf
Formbook
53685ac5f275b61fc580f2203e7d7e431d2b03b8e4320015b428745d68d5e333
Formbook
5d407049f81d3b75bf2d9eb7dc14662f533b1ca37d283e5ef50e001a7ac1f758
Formbook
75772375acbcfb6cb668fc2449671a6a83afe1434184ac7c01fd895825fcf5e6
Formbook
86df15ac78abc1d224a4249db72d29dcb2979fd0669a15c0d291e47648dc0c1c
Formbook
9e41bc1734c4bc894acdc9c08568cb2f1cd01078fa9b5f30d6f18c6383c22863
Formbook
f725b6a2466a6f4c7084eeab5994e30b8ef836633c1a84d85c1899deb1808d3c
Formbook
+ 14'400 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/220301-pkf8xabegm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
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/42cdc4c2-b1a3-4215-94ca-619d45784391/
Parent samples :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 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/42cdc4c2-b1a3-4215-94ca-619d45784391/
SH256 hash:
6bf71ab35ea0825a80b0b81bac38c73fb52ef8ff5e281fc79a4f090512b66c2e
MD5 hash:
7ba1e7760866ab252c156f9acda54820
SHA1 hash:
677ac32ef152ff113ec6790ccc256715feb664d2
Link:
https://www.unpac.me/results/42cdc4c2-b1a3-4215-94ca-619d45784391/
SH256 hash:
2635c1f4ed08c33acffe182b043b101bffac57777fb883918286fce35ca873d3
MD5 hash:
4aaaf9c78ff2fbb908bcfcffef915d31
SHA1 hash:
3fd830b11d57508608cf9f3c37470cb272ab5101
Link:
https://www.unpac.me/results/42cdc4c2-b1a3-4215-94ca-619d45784391/
SH256 hash:
b15532a660090cc54e4f9f2be695da798d85a00a0aac366f1edfb665687048b8
MD5 hash:
25a4a2eed28102497ad0e0b3f22ed54c
SHA1 hash:
4523a4d509ea47d45bd14e7ca1d495463f8f8eb3
Link:
https://www.unpac.me/results/42cdc4c2-b1a3-4215-94ca-619d45784391/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b15532a660090cc54e4f9f2be695da798d85a00a0aac366f1edfb665687048b8

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
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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 b15532a660090cc54e4f9f2be695da798d85a00a0aac366f1edfb665687048b8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/245789/

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