MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c50e81d6b4ddb4d9a171d8e4616576fdce7b4904df4272fe4f40ec462eb9421. 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: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c50e81d6b4ddb4d9a171d8e4616576fdce7b4904df4272fe4f40ec462eb9421
SHA3-384 hash: 6ae0fed8b23be526d4ef7eccbd0e12fd3fce2590715631d5bbfb8332f2d32d0e8e4fed691eafc81d0e41c00155d4e051
SHA1 hash: 454c163a83f711ec2df79998977202e6fe63823e
MD5 hash: ba853293228a9b130de91b4cb2197db8
humanhash: network-lamp-pennsylvania-undress
File name:ba853293228a9b130de91b4cb2197db8.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'153'984 bytes
First seen:2021-02-02 08:56:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:5aZ8MC8FSmToK7tgFtSfUeD1sEbh8JlwhB:uMkyeD1RbQl
Threatray 3'708 similar samples on MalwareBazaar
TLSH 06A5F6516AEC3B04E43E9B399A30061447F67947F7BAE25E6DC0229A9C367C5AF0D313
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
QUOTATION REQUEST_0000564.xlsx
Verdict:
Malicious activity
Analysis date:
2021-02-02 08:36:42 UTC
Tags:
encrypted exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/bbc55784-a7bc-4909-9b25-74e597077b49

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/115100/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/596370
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 347222 Sample: CtUKdUOHff.exe Startdate: 02/02/2021 Architecture: WINDOWS Score: 100 31 www.jettbay.com 2->31 33 jettbay.com 2->33 35 www.groovepags.com 2->35 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 6 other signatures 2->49 11 CtUKdUOHff.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\CtUKdUOHff.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 CtUKdUOHff.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 37 aarigging.com 64.91.250.204, 49745, 80 LIQUIDWEBUS United States 18->37 39 coloniacafe.com 34.102.136.180, 49740, 49744, 49751 GOOGLEUS United States 18->39 41 7 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 explorer.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8c50e81d6b4ddb4d9a171d8e4616576fdce7b4904df4272fe4f40ec462eb9421/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-02-02 05:46:24 UTC
AV detection:
6 of 28 (21.43%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rrioqhlljxnu3gqxdwhemfsxn7oopneqjx2col7e6qhmiyxlsqqq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
182fd1343975d43f456f199f379210d562d15ea3c8e4c7bd59899d75c18a2fe9
Formbook
4cd5fc82f7d1094ebe188a372dd682d24083ea423f0b49a057cfacc0af849ac4
Formbook
75f2a2a20e73b7e0c53d499b883a403c2b8cfbf17c5923d58e0167daa4c019c1
Formbook
7a434269888c9382307a609aceba2b185542ab901cda169d761c2650c84f2f4e
Formbook
865114b9f103c739212beb94ede2a4c67f58b9f02268673109b452452803e88a
Formbook
98be979a6ee314a1829acd3d33744d9caf8fe2c871d6b73d3771c76c09584387
Formbook
a026f6e6988f126a35bb044b7215fa5fb20a41a3b3bac722bfb7f53e670cc0f4
Formbook
b6dc1192212d0ae4c5509491a96602f9c3da82694097372e9bf5ae03ca86adba
Formbook
c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54
Formbook
d295487f9604941495341ea43a4f21b3beed094c81225ab75e41a0b10541ad9b
Formbook
+ 3'698 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210202-ntajmjeqgs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.aftabzahur.com/wgn/
Unpacked files
SH256 hash:
a272312b488605281adfc02fa6678d87a4ee90126c29dd9d860ed333d5702b76
MD5 hash:
cd8056ee3ad184ffa09ef89c092be9df
SHA1 hash:
2f7672deed47d0317e3ada163f4d5f8a13c978a9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9c5a4a3b-9148-49ac-934d-60a4e204b2a2/
Parent samples :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 hash:
fec081ce4c7e335a4958bc768e6365fa29d8205ead247269220b8c0c6a73981f
MD5 hash:
f46a8cad49debe3102558c84deed3456
SHA1 hash:
d93074b012d55aabb54c132808e6e97be9562cfd
Link:
https://www.unpac.me/results/9c5a4a3b-9148-49ac-934d-60a4e204b2a2/
SH256 hash:
57133e78b68092f8ac3d8ed929279444ed53c67f8a2aa894856ee27a2a17c214
MD5 hash:
555e30acba60b0d796b163b0b1f3d1e1
SHA1 hash:
62e968df8dc69f06bc4e274b90978650c463cf83
Link:
https://www.unpac.me/results/9c5a4a3b-9148-49ac-934d-60a4e204b2a2/
SH256 hash:
8c50e81d6b4ddb4d9a171d8e4616576fdce7b4904df4272fe4f40ec462eb9421
MD5 hash:
ba853293228a9b130de91b4cb2197db8
SHA1 hash:
454c163a83f711ec2df79998977202e6fe63823e
Link:
https://www.unpac.me/results/9c5a4a3b-9148-49ac-934d-60a4e204b2a2/
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/8c50e81d6b4ddb4d9a171d8e4616576fdce7b4904df4272fe4f40ec462eb9421

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 8c50e81d6b4ddb4d9a171d8e4616576fdce7b4904df4272fe4f40ec462eb9421

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/986165/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/115100/

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