MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3
SHA3-384 hash: 267a66c9f96d51bf8d189bf9491cd2406c00711c97077a8739894c7932547a5ce93837fd2bc8643b464400abeb76a1db
SHA1 hash: b65a0bdf8d8b8ab3708fa8281d3a9e6885f5827b
MD5 hash: b3c8c2559e752ab1fdacfbfa0578438d
humanhash: kentucky-alanine-neptune-friend
File name:file
Download: download sample
Signature Formbook
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File size:944'128 bytes
First seen:2023-03-16 12:39:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:gt2JTOT4PSrXodOdrGPCiwXd7mWob0NeGxUTyE3:gQFOsPSkcd6CiwX8fSBUTyE
Threatray 2'368 similar samples on MalwareBazaar
TLSH T10315124C66AA6776DA2D33FBA091600853B4CA34A722F35E1DC074F70EE27D4D916D8B
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter jstrosch
Tags:.NET exe FormBook MSIL

Intelligence

File Origin
# of uploads :
1
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-03-16 12:44:28 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/320b80e0-fbf6-4d3d-acf4-8613c068528a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/374758/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/64130e26c3d52e36200e40a3/reports/e35bd85d-2689-45ca-a71f-32cf0e30525e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3
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/0e21ff31-4b26-42d7-8712-6a46a9f75f66
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1194927
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 827828 Sample: file.exe Startdate: 16/03/2023 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 5 other signatures 2->42 10 file.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 file.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 2 1 14->17 injected process8 dnsIp9 30 alnour-avocats.com 162.144.35.47, 49686, 80 UNIFIEDLAYER-AS-1US United States 17->30 32 www.foundersterrace.online 17->32 34 3 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 mstsc.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2023-03-16 05:49:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x4b43dsvktwgfsmjgedj6q3oy4nmehkxvcjcwg5tygkyucusk3zq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0802394968eda97506836e12c3deb32af74ad1ffcc86b22e4d654d10b865241c
Formbook
43440434172d5730884fa5f0ae4f7ae73c4815e74618d18bc405d18dd325fed4
Formbook
4408ca4867bf10664da86178ed9d1730f0b405964f6bcd1c5ad87353ac1f5dca
Formbook
4422661ccc0d1ca90ea0427fbe9eacc398d819ef1f557c163a686fa127444c3a
Formbook
53176c142b4a57f89c57ed969d3a578640841c09db2a58bc9f360a636c8d5947
Formbook
597979053a51f37ffa0cbeb1847f707b2dd3b3cdbcc5c0a5e66a1f15b5419b8e
Formbook
a96ec414b99747cf8859a77e2d05ea24053db3fa343474a007180dfefda658ca
Formbook
b0302231ae277b08e383cef527b093307edf552a1777b5c9a088e2e1c61ad6fe
Formbook
c1b6263682ff4c894af9df16a4f6c63bcd49248f2a580b3a3c86012d44388437
Formbook
d5b73f94baae872466c1f7435d9c3ee66c5bdd606b1bfbae775c9acb19f5c42b
Formbook
+ 2'358 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:bk08 rat spyware stealer trojan
Link:
https://tria.ge/reports/230316-pv7tlsda9t/
Behaviour
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
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
a1bf5a12a5136d90b337eba9a3463f46cd9c1e99af5ee012cc88a905c7992fdb
MD5 hash:
bf46fb3abcba846beb5bf6eb0bbdae12
SHA1 hash:
664590e30ce4ad59a537595eb1e333f1095825a3
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/3302a004-c7bd-42da-88ab-435107a59991/
SH256 hash:
32f47ac5ad8745da2a69ae718036193864a9648f26fa814bf7362a8b65c6d022
MD5 hash:
97d4057d5da6d4e4a4c964b434a97fba
SHA1 hash:
b842e7572deee6827723215ce18e06a228d59b68
Link:
https://www.unpac.me/results/3302a004-c7bd-42da-88ab-435107a59991/
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
Link:
https://www.unpac.me/results/3302a004-c7bd-42da-88ab-435107a59991/
Parent samples :
495607b1aef01bf7dfb64b5cb16a8fc0f161c2923627d71c69de97328f8eca3f
2434aa78b46a3afc98fa6e888c3eb56278ba52b0ff800e7e875af9c2e7f9011a
SH256 hash:
457082385192c8dba679f720dff1a9dcf4dccf1e811cabc75b62fa20dff0bb50
MD5 hash:
22b5070ab9569cb3d3c74067e794050e
SHA1 hash:
48b533f3ac782846b5353378565d536e1d30dbf6
Link:
https://www.unpac.me/results/3302a004-c7bd-42da-88ab-435107a59991/
SH256 hash:
f2d17f6825eedf911cafd3e58a62d9f07e02f417644cfe16e73084ec20f06b6b
MD5 hash:
a30527be5c501162fd59e0a980f59ed6
SHA1 hash:
194994ca2a2f3718e229f95fc27f8b0b1d788df9
Link:
https://www.unpac.me/results/3302a004-c7bd-42da-88ab-435107a59991/
SH256 hash:
bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3
MD5 hash:
b3c8c2559e752ab1fdacfbfa0578438d
SHA1 hash:
b65a0bdf8d8b8ab3708fa8281d3a9e6885f5827b
Link:
https://www.unpac.me/results/3302a004-c7bd-42da-88ab-435107a59991/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf03cd8e5554/report/overview.html
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/bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3

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.

Web download

Formbook

Executable exe bf03cd8e5554ec62c98931069f436ec71ac21d57a8922b1bb3c1958a0a9256f3

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/374758/

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