MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f098931cd725c843b758c8a9be697e85bdb6c09b2a11035820aadabb8be3758. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f098931cd725c843b758c8a9be697e85bdb6c09b2a11035820aadabb8be3758
SHA3-384 hash: dc9d3b0dd5b5ec02ea2fb0d2feda90cc8d625f2d62c3c7e359f40e2af8fe41093bbdc675e2ee70f746bd6462170f98c6
SHA1 hash: 627f591d36e55f4d8b075b79493e554989c17537
MD5 hash: 386579b5de96056961a3aea308f7ed36
humanhash: utah-florida-stairway-uniform
File name:PO 008-01.Pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:972'800 bytes
First seen:2021-09-09 21:16:53 UTC
Last seen:2021-09-10 09:08:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:OTSG9kgKA6oW7C6KoA91EL3spU2a1dBFBiSqZ2bxjgLTSbOnL41swz0KO3+VUPOI:4tkjA6oWW6EELcpUiHwl
Threatray 12'228 similar samples on MalwareBazaar
TLSH T1FC2509283AE6705EF173EE758EE43C96EA5AB6733707D40B5053038A4E1EA82DF50176
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
271
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO 008-01.Pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-09-09 21:18:32 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/d142c24d-7c96-40ee-b9c0-3abc498a5829

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/186740/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5261f45a-c6bd-4582-ae3b-ea7961924032
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/848452
Signature
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Uses an obfuscated file name to hide its real file extension (double extension)
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3f098931cd725c843b758c8a9be697e85bdb6c09b2a11035820aadabb8be3758/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-09 17:07:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 45 (42.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=h4eysmonojoiio3vrsfjxzux5bn5w3ajwkqranmcbkw2xof6g5ma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
104464217f6bbe6fa250b57038520217dda089462331e969b1e761f1d84d5bfe
Formbook
3ba94c54291623972d2c5e31bd34f3e5fbdd9416f2b34e7daeaf2e4fcb96506b
Formbook
3c78a8163632246f074a36ed8b6f1717aceb0ba55dcc5c5329ddb16d9cfd5755
Formbook
5c7868a7b214c1173f586173731c145bf0d466e08c0ceb7a00d0957cc29c0f7e
Formbook
bb2bcc2c68b1849de7c4cec0de6367323afbc266507ac1122af65afb980d2758
Formbook
d95754d5ca3e8ef0462c99b4f10388a39cfb92b4885a2f0fc0839dc75c869c61
Formbook
ec07f953fea536e8ae3a92b862b6fa0ab1e6d76369a8b3d1c07ee65bc3525dcb
Formbook
fd151f1c914b41e565c1dfeae2cab5c77fdcc885b83c46e30b9fe3eefc68efd3
Formbook
+ 12'218 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:gno4 loader rat suricata
Link:
https://tria.ge/reports/210909-z413jabhgl/
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.maidenmade.com/gno4/
Unpacked files
SH256 hash:
1ac5fa7250d2813c9f360dfad15485b3f1bfc3637786cb1b206118c7d778af22
MD5 hash:
6d5325607057f22c738617590e386868
SHA1 hash:
5b68c705387e0ac6042ea1975e3c8308006d6f29
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6553acc1-45b2-4f1b-9060-113976951cdb/
Parent samples :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 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/6553acc1-45b2-4f1b-9060-113976951cdb/
SH256 hash:
36daeec2f0617bb1a36463b3984234bae68710a0c991e772554c3287032e1f63
MD5 hash:
a616c2ae03d2b8f53c905bb6bb0a1b9d
SHA1 hash:
eaa157ea98e289461ed96fbab9530e28337f984b
Link:
https://www.unpac.me/results/6553acc1-45b2-4f1b-9060-113976951cdb/
SH256 hash:
3f098931cd725c843b758c8a9be697e85bdb6c09b2a11035820aadabb8be3758
MD5 hash:
386579b5de96056961a3aea308f7ed36
SHA1 hash:
627f591d36e55f4d8b075b79493e554989c17537
Link:
https://www.unpac.me/results/6553acc1-45b2-4f1b-9060-113976951cdb/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3f098931cd72/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/3f098931cd725c843b758c8a9be697e85bdb6c09b2a11035820aadabb8be3758

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
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.

Malspam

Formbook

Executable exe 3f098931cd725c843b758c8a9be697e85bdb6c09b2a11035820aadabb8be3758

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/186740/

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