MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1426732f06b03f0d2f0b2afd275bcd17ceb24d16174db630e10fab4fee09f04. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c1426732f06b03f0d2f0b2afd275bcd17ceb24d16174db630e10fab4fee09f04
SHA3-384 hash: b2e9b0cd474ae8581e8e29fb68d571fb040015fc1c8beab4b78bf5943b21a592e14a237254ba38a17175c909d1b6257d
SHA1 hash: df8fdfe796ea6c18287c33cd224ebe5709562588
MD5 hash: 94cb17b4c72ade9c1c690c1036ab01d3
humanhash: sad-william-south-stream
File name:SOA 2021.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:671'744 bytes
First seen:2021-10-11 19:17:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:RohvvUi0dZqQaRoMdtZdlG78GQe36Ns+qZ6W:RUnUiaZqzRoMRdlGvF3wsJ
Threatray 10'326 similar samples on MalwareBazaar
TLSH T108E4B03439FA9065F372AF365ED2B25D9F6E7E722503841E2052734A0632B818DE157F
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
297
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SOA 2021.exe
Verdict:
Malicious activity
Analysis date:
2021-10-11 19:25:48 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/57262c3b-5746-421a-9ed5-36cb10240e04

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/196734/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61648dedfd35fe780c38b7b4/reports/61199f8a-490a-4f6b-b4b3-a1ad068a4ded/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f38a4cc9-1edf-4af4-a7ee-59da0794ed68
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/867825
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 500252 Sample: SOA 2021.exe Startdate: 11/10/2021 Architecture: WINDOWS Score: 100 27 www.ittybittybunnies.com 2->27 29 www.arabatalmustahlik.com 2->29 31 5 other IPs or domains 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 7 other signatures 2->45 10 SOA 2021.exe 3 2->10         started        signatures3 process4 process5 12 SOA 2021.exe 10->12         started        signatures6 47 Modifies the context of a thread in another process (thread injection) 12->47 49 Maps a DLL or memory area into another process 12->49 51 Sample uses process hollowing technique 12->51 53 Queues an APC in another process (thread injection) 12->53 15 msiexec.exe 12->15         started        18 explorer.exe 12->18 injected 21 autofmt.exe 12->21         started        process7 dnsIp8 55 Self deletion via cmd delete 15->55 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 23 cmd.exe 1 15->23         started        33 flordedesierto.com 108.167.164.87, 49791, 80 UNIFIEDLAYER-AS-1US United States 18->33 35 www.otqrfw.com 104.21.56.7, 49784, 80 CLOUDFLARENETUS United States 18->35 37 4 other IPs or domains 18->37 61 System process connects to network (likely due to code injection or exploit) 18->61 63 Performs DNS queries to domains with low reputation 18->63 signatures9 process10 process11 25 conhost.exe 23->25         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c1426732f06b03f0d2f0b2afd275bcd17ceb24d16174db630e10fab4fee09f04/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-10-11 19:18:05 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yfbgomxqnmb7buxqwkx5e5n42f6owjgrmf2nwyyocd5lj7xat4ca._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02a9e7458836d89cc02de2333176fcfdc9e462535e73e5b032f13e604b831b72
Formbook
129d230573fdb00a681a7f0c507bc16d2efcd08c4408f544f1d7653162b2cd92
Formbook
18f25a6941b39471ea68715f7ab4b3f96990808ded5138054b96763179e0c19e
Formbook
5c6bb4be3e5abfc077f779645b07502ad3f9357fa3c486db79d0a2fb4f470527
Formbook
64e3a0f2298f21833eb7a9c51aa0b2b8d3354bdcefb0156bb34371e3163d8b3d
Formbook
9e433f562c623ddfcc0248f72a1c721916fc93ad56d18c4eb7ef6e60f8d7c1f2
Formbook
aba852eff9b53848b266228241991403993f7769587712794eb5f406ce4c9a6c
Formbook
c53c1098e4621c2258d13bd6c36d95493343129c5846f6c0ca07c12565da843d
Formbook
ea12191fcd49d36b68be2c466a24cac87cfd79f9d1fb18ef252037f0fb976979
Formbook
f836093baf3255830126881722dc2edd86fd615fc922f86d177b0ccb0e3d2941
Formbook
+ 10'316 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:yjqn loader rat suricata
Link:
https://tria.ge/reports/211011-xzx4zahhgj/
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 UnmapMainImage
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.wavekiss.com/yjqn/
Unpacked files
SH256 hash:
8001a02f98fd71a26ccb8ca40713b89880c73d2793202fd8ec024bedb30fbcfa
MD5 hash:
0fae8120539c9edf99105206fa477c73
SHA1 hash:
9375940389b71e67fd8404161f41ae1effa67e15
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a8d644d7-8c06-48a4-bb1a-151f6c6548cd/
Parent samples :
c1426732f06b03f0d2f0b2afd275bcd17ceb24d16174db630e10fab4fee09f04
0aeac649d2d859f9f98e5545017913ed1e3270ba4d46602c2cac3adbe03dea40
9f55a497a04ad1181a75185f7b2ec1be0b9d33ed50f26c0c8cc82fa0f85db590
ae96332ca43b0c594a1c8c81d26c14742eca1c15c290901772bc4ae29c530f29
367e0400b78d94aed02d364e9a8e41dfb7e0136f12e68dd1b532d529354e00f7
4645255a1302be5b36e6814261279dc48d24f03c3a170b0b2efca04adacd2718
SH256 hash:
442e664b235f5a32b0f3193a1816d755bca85e1efbf6b253a87a2d7ec6abd73e
MD5 hash:
564f342c1a859f65fb02961539628216
SHA1 hash:
ef6687e2d873508e6ab75e432ab9d6b0886bcbc7
Link:
https://www.unpac.me/results/a8d644d7-8c06-48a4-bb1a-151f6c6548cd/
SH256 hash:
d434e7cb4105d7e760a39a1a8a1306338b00fbd6507025d53e4c44ede73d3788
MD5 hash:
6613b992e916924c3f38a179bb9866ab
SHA1 hash:
cd5741f4d0a4685c5fd9c9e2e708bbf33ec1691a
Link:
https://www.unpac.me/results/a8d644d7-8c06-48a4-bb1a-151f6c6548cd/
SH256 hash:
c1426732f06b03f0d2f0b2afd275bcd17ceb24d16174db630e10fab4fee09f04
MD5 hash:
94cb17b4c72ade9c1c690c1036ab01d3
SHA1 hash:
df8fdfe796ea6c18287c33cd224ebe5709562588
Link:
https://www.unpac.me/results/a8d644d7-8c06-48a4-bb1a-151f6c6548cd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c1426732f06b03f0d2f0b2afd275bcd17ceb24d16174db630e10fab4fee09f04

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 c1426732f06b03f0d2f0b2afd275bcd17ceb24d16174db630e10fab4fee09f04

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/196734/

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