MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 399d8e9277b5f66e82967946935e260029d9920532a649c8cca7e637ef34e2f4. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 399d8e9277b5f66e82967946935e260029d9920532a649c8cca7e637ef34e2f4
SHA3-384 hash: cd60c040888a20d11214627543b35b67e8efe1250d7e2e664365551c7a6ce554d4c5565f2b06deee1877acfe98c2ad13
SHA1 hash: 2e8651bcab0ae2646d8c8bef17a0fe193cd802f9
MD5 hash: 7fd62594249eab704ea55a809214b587
humanhash: twelve-saturn-king-lemon
File name:vbc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'218'048 bytes
First seen:2021-12-08 08:38:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:B4M4MJv7B7Qf8NTa2sB3x8y+gtsm/LWEKnZ4ADXc9GOpJ3amrmFkSB+BF+AwJ9os:+wnPeFzXSByIhrLYHuG
Threatray 12'300 similar samples on MalwareBazaar
TLSH T1C64523001ADE1C77ECBB6B7747E11B6686B2FF114633684D7FB2318D9A03C419A62E16
Reporter pr0xylife
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
vbc.exe
Verdict:
Malicious activity
Analysis date:
2021-12-08 09:12:00 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/7bdfe44c-1cea-4017-aa22-93247020742f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/212397/
Result
Verdict:
Clean
Maliciousness:

Behaviour
DNS request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/61b06f29fa72c81b5b115ea1/reports/b86e225b-842e-4297-bfd0-e6aaa0c0eb97/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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3096eec8-2001-47b6-a5e1-63413ea6c896
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/903695
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found 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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 536173 Sample: vbc.exe Startdate: 08/12/2021 Architecture: WINDOWS Score: 100 28 www.suprememodelmanagement.com 2->28 30 suprememodelmanagement.com 2->30 32 www.saltypigeon.com 2->32 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 5 other signatures 2->48 9 vbc.exe 2 2->9         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 9->26 dropped 60 Writes to foreign memory regions 9->60 62 Injects a PE file into a foreign processes 9->62 13 aspnet_regbrowsers.exe 9->13         started        16 conhost.exe 9->16         started        signatures6 process7 signatures8 64 Modifies the context of a thread in another process (thread injection) 13->64 66 Maps a DLL or memory area into another process 13->66 68 Sample uses process hollowing technique 13->68 70 2 other signatures 13->70 18 explorer.exe 13->18 injected process9 dnsIp10 34 www.advisormarketing.online 159.253.18.185, 49817, 49831, 80 PAGM-ASEE Estonia 18->34 36 www.ctlcloudfr.com 18->36 38 2 other IPs or domains 18->38 50 System process connects to network (likely due to code injection or exploit) 18->50 52 Uses ipconfig to lookup or modify the Windows network settings 18->52 22 ipconfig.exe 12 18->22         started        signatures11 process12 dnsIp13 40 www.advisormarketing.online 22->40 54 Modifies the context of a thread in another process (thread injection) 22->54 56 Maps a DLL or memory area into another process 22->56 58 Tries to detect virtualization through RDTSC time measurements 22->58 signatures14
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/399d8e9277b5f66e82967946935e260029d9920532a649c8cca7e637ef34e2f4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-08 08:39:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4bb96dffcc0b4cba1f4ee2ed04e32d724e486c88b0e8492b3e5efb1ec0928c0e
Formbook
59139210e96ea7a1ca64dbb343b225be422bc0d3c66a673959b3e8e076bceea7
Formbook
64a668add3d7f3bbcc0ef6acb25529c70df773d74e7e17a4a8fd8c95e81ee8bd
Formbook
84bbdc0b303d03c1ef4ee6d48dedd94181d8fc5650a20b557a555b0917aaf879
Formbook
8c6441d2f5e108a63524430674b8f711cc7b218a2a06fa2c43e24b1de1d76088
Formbook
ad7117e7b38bd79d672590054fda19c333f8595c42f5b82ab237781b305fb2f8
Formbook
c6ac9c7f14e2fe9196fe5fdd2a30236a157d4c04c0e5c9dc84e8592984756717
Formbook
eae07efa1c1d3cf15b86b7d83258a0ec3bad96ec1bbdf0791b0b984a835387e2
Formbook
+ 12'290 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/211208-kkanxahagl/
Behaviour
Suspicious use of AdjustPrivilegeToken
Uses the VBS compiler for execution
Unpacked files
SH256 hash:
b8bab6150dacb77a10a74fe6d16b59ad725a26ade94937a5c2b5a7decf9fec21
MD5 hash:
f6e5afc08de41620b17402e6f9b9c3d0
SHA1 hash:
a395f6e5616ea1e5956766abffea7f4aa02961f8
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/30c99d6a-5bea-4165-8489-ff875f1c5673/
Parent samples :
399d8e9277b5f66e82967946935e260029d9920532a649c8cca7e637ef34e2f4
b2253435b6541cf9dc011670f57efd225192942962a40893b53b71114f38899b
702d3030838e32a3a304f2765eea7f2a0dcf256890ee1614afd6508c3035d842
75e51d5e7662ad2c7ee23822ebf5246ce2d3257734ef87883f57bbcffe13c5d2
ff7bd7299367f7e43c9c44fcd0f47a2a7f5b0529046b74ff6dc9c23c4bc71e86
SH256 hash:
57b3486a659f2b6e7d91e454a59116f2184468dda3c8b4f34213e6c98a0d2f80
MD5 hash:
dc2c61e522f0929d52da32c96ecc32a0
SHA1 hash:
c36603ae44d3cd06f20ceb18d29955cf70a78dc6
Link:
https://www.unpac.me/results/30c99d6a-5bea-4165-8489-ff875f1c5673/
SH256 hash:
399d8e9277b5f66e82967946935e260029d9920532a649c8cca7e637ef34e2f4
MD5 hash:
7fd62594249eab704ea55a809214b587
SHA1 hash:
2e8651bcab0ae2646d8c8bef17a0fe193cd802f9
Link:
https://www.unpac.me/results/30c99d6a-5bea-4165-8489-ff875f1c5673/
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/399d8e9277b5f66e82967946935e260029d9920532a649c8cca7e637ef34e2f4

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
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.

Web download

Formbook

Executable exe 399d8e9277b5f66e82967946935e260029d9920532a649c8cca7e637ef34e2f4

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/212397/
  
URLhaus
https://urlhaus.abuse.ch/url/1866165/
  
Delivery method
Distributed via web download

Comments