MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20bf9de191b51755f2680bebdce8ad9cb9a7d4b4563dfcfff257ddefd34665cf. 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: 20bf9de191b51755f2680bebdce8ad9cb9a7d4b4563dfcfff257ddefd34665cf
SHA3-384 hash: 969688e6d59f0dcfc8ddec5e682fd75f3b169d854fe1920e91cf5eda6dfb75e7d312d72544d81ad70eb1dc6a1fb8a8ca
SHA1 hash: 32e28a6bb9afe9b13dc0857109c6654af78a9bef
MD5 hash: b3bae0337e9e8e53af9f3fe620f1d4f0
humanhash: maryland-magazine-black-oscar
File name:b3bae0337e9e8e53af9f3fe620f1d4f0.exe
Download: download sample
Signature Formbook
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File size:678'400 bytes
First seen:2022-11-17 15:24:36 UTC
Last seen:2022-11-17 16:53:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:Y4c/U/5s5BhUjb9fGDPZM3tnuQ9+01i5ufxx9xz5KTUOcjZnbCkI:Hl/5kmfYhIuPgfP9x1KTUzjZnbCkI
TLSH T17DE438E9A893696EE1B9B35D55F1A850CBB388724EC0AE2441783DC55D339D3B022DFC
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13097/50/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b3bae0337e9e8e53af9f3fe620f1d4f0.exe
Verdict:
Suspicious activity
Analysis date:
2022-11-17 15:30:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a3aabf9a-f7cc-496e-a40a-09e3ea04c97b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/335426/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.10938.28045.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
hacktool packed
Link:
https://www.filescan.io/uploads/6376525142e3c45b840c1551/reports/d0531da0-8c34-4fa5-a5e0-2f310b669b6a/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/aea0e0e4-0627-40f9-bfba-92d86bdd461a
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1115860
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Detected FormBook malware
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
Sigma detected: Steal Google chrome login data
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 detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 748567 Sample: KzKZhGQCVY.exe Startdate: 17/11/2022 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Sigma detected: Steal Google chrome login data 2->47 49 7 other signatures 2->49 10 KzKZhGQCVY.exe 3 2->10         started        process3 file4 37 C:\Users\user\AppData\...\KzKZhGQCVY.exe.log, ASCII 10->37 dropped 63 Tries to detect virtualization through RDTSC time measurements 10->63 14 KzKZhGQCVY.exe 10->14         started        17 KzKZhGQCVY.exe 10->17         started        signatures5 process6 signatures7 67 Modifies the context of a thread in another process (thread injection) 14->67 69 Maps a DLL or memory area into another process 14->69 71 Sample uses process hollowing technique 14->71 73 Queues an APC in another process (thread injection) 14->73 19 explorer.exe 14->19 injected process8 dnsIp9 41 www.globalebooksstore.com 188.114.96.9, 49720, 49721, 80 CLOUDFLARENETUS European Union 19->41 51 System process connects to network (likely due to code injection or exploit) 19->51 53 Uses ipconfig to lookup or modify the Windows network settings 19->53 23 ipconfig.exe 18 19->23         started        signatures10 process11 file12 33 C:\Users\user\AppData\...\5P1logrv.ini, data 23->33 dropped 35 C:\Users\user\AppData\...\5P1logri.ini, data 23->35 dropped 55 Detected FormBook malware 23->55 57 Tries to steal Mail credentials (via file / registry access) 23->57 59 Tries to harvest and steal browser information (history, passwords, etc) 23->59 61 3 other signatures 23->61 27 cmd.exe 2 23->27         started        signatures13 process14 file15 39 C:\Users\user\AppData\Local\Temp\DB1, SQLite 27->39 dropped 65 Tries to harvest and steal browser information (history, passwords, etc) 27->65 31 conhost.exe 27->31         started        signatures16 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/20bf9de191b51755f2680bebdce8ad9cb9a7d4b4563dfcfff257ddefd34665cf/
Threat name:
ByteCode-MSIL.Trojan.Taskun
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Status:
Malicious
First seen:
2022-11-17 13:01:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
16 of 25 (64.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ec7z3ymrwulvl4tibpv5z2fnts42pvfuky67z77sk7o67u2gmxhq._file
Verdict:
malicious
Label(s):
formbook
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cobaltstrike
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:gh31 rat spyware stealer trojan
Link:
https://tria.ge/reports/221117-stl3aseg67/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4dfe18ae-c0db-4edf-a12e-e1ee803c0f85
Unpacked files
SH256 hash:
76baa55e48333b0f0f4f25acd60534d51addcc38c7568a5a871a56efd5a7a530
MD5 hash:
89d8d4cc4a1f9e2c20ecdfcf0d0352ea
SHA1 hash:
94e421c2a6a3f3dd38b8923edbb070dd4fef6431
Detections:
FormBook
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/92f90db6-e5ed-42d3-a512-b167404b6f26/
Parent samples :
20bf9de191b51755f2680bebdce8ad9cb9a7d4b4563dfcfff257ddefd34665cf
fc98651f6e422a0a58955659b338a9f11186b7ec235eee1daf9462fd725faf20
SH256 hash:
8ca350db5fde50fa0cf6b108e7d88092edf57a42e223e9d9aa3283bfc0a6672d
MD5 hash:
d980bbb15a75bb589db3a26484bbcb5f
SHA1 hash:
aedf19a2615e1203b6e4ca85b2b0411c1c74dc6c
Link:
https://www.unpac.me/results/92f90db6-e5ed-42d3-a512-b167404b6f26/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/92f90db6-e5ed-42d3-a512-b167404b6f26/
SH256 hash:
8d516f721d8e2ce0c1e1997b4de80c0eb77312ef18092cc03c69fc4bc8670e2b
MD5 hash:
dbeb888117cf32cbd42f1f7b3b584477
SHA1 hash:
3623cfb90c6eddb08eae5bc77056fca5c6d65a33
Link:
https://www.unpac.me/results/92f90db6-e5ed-42d3-a512-b167404b6f26/
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
Link:
https://www.unpac.me/results/92f90db6-e5ed-42d3-a512-b167404b6f26/
SH256 hash:
20bf9de191b51755f2680bebdce8ad9cb9a7d4b4563dfcfff257ddefd34665cf
MD5 hash:
b3bae0337e9e8e53af9f3fe620f1d4f0
SHA1 hash:
32e28a6bb9afe9b13dc0857109c6654af78a9bef
Link:
https://www.unpac.me/results/92f90db6-e5ed-42d3-a512-b167404b6f26/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/20bf9de191b5/report/overview.html
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
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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 20bf9de191b51755f2680bebdce8ad9cb9a7d4b4563dfcfff257ddefd34665cf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2346138/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/335426/

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