MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b3535f44d1b9df9297fb95f8071f8488ca55c7511472b597942c779b400dbb9. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b3535f44d1b9df9297fb95f8071f8488ca55c7511472b597942c779b400dbb9
SHA3-384 hash: 047db8f41e48bfd61fdac2f959b00bef0890e173ad8a632ed854acb4c13f9a9b73e3af781877994e6c592baac9819b2b
SHA1 hash: f0f23a397bad7d097a605777d66eac69fe8f6317
MD5 hash: 35ffee4482ae6ca8ce58f107fbb259c3
humanhash: fourteen-washington-ceiling-georgia
File name:35ffee4482ae6ca8ce58f107fbb259c3.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:875'520 bytes
First seen:2021-09-06 12:40:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:mobXmKDFsGOSB/OVnS0N4Hv3BEsD94fRRvBxXlqpA:Hq4mGOITi4PBEGoRdBbqp
Threatray 9'368 similar samples on MalwareBazaar
TLSH T1C1152E3E18FE2327D176D7F5CBE0C823B2D09CAF3122A96457D65B665316A4634C322E
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
VINASHIP STAR.xlsx
Verdict:
Malicious activity
Analysis date:
2021-09-06 06:29:38 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/864dff1e-61e1-4cbf-822e-12b72de1f614

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/185668/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.25666.16786.27697.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7c016042-0083-4c16-b2a9-8f7bb2325b5d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/845995
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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: 478427 Sample: QYUNlRkkn1.exe Startdate: 06/09/2021 Architecture: WINDOWS Score: 100 32 www.aedenpure.com 2->32 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 9 other signatures 2->50 11 QYUNlRkkn1.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\QYUNlRkkn1.exe.log, ASCII 11->30 dropped 62 Tries to detect virtualization through RDTSC time measurements 11->62 15 QYUNlRkkn1.exe 11->15         started        signatures6 process7 signatures8 64 Modifies the context of a thread in another process (thread injection) 15->64 66 Maps a DLL or memory area into another process 15->66 68 Sample uses process hollowing technique 15->68 70 Queues an APC in another process (thread injection) 15->70 18 explorer.exe 15->18 injected process9 dnsIp10 34 www.dindigulvysya.com 142.111.57.185, 49716, 80 EGIHOSTINGUS United States 18->34 36 goldmig.com 203.16.60.34, 80 DIGITALPACIFIC-AUDigitalPacificPtyLtdAustraliaAU Australia 18->36 38 4 other IPs or domains 18->38 52 System process connects to network (likely due to code injection or exploit) 18->52 22 svchost.exe 12 18->22         started        signatures11 process12 dnsIp13 40 www.goldmig.com 22->40 42 goldmig.com 22->42 54 System process connects to network (likely due to code injection or exploit) 22->54 56 Self deletion via cmd delete 22->56 58 Modifies the context of a thread in another process (thread injection) 22->58 60 2 other signatures 22->60 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8b3535f44d1b9df9297fb95f8071f8488ca55c7511472b597942c779b400dbb9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-06 08:55:12 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rm2tl5cndoo7skl7xfpya4pyjcgkkxdvcfdswwlzildxtnaa3o4q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
016e6200c368ec7e158572673568037338e92642721c8e543a01571fd0ee2571
Formbook
0b83d5ad9e2be0ecb6ea6d4228a1d41a6be6de3d0027729c1e0ef15789ed1e3c
Formbook
224ddfe0908d9cc2833a8f0f4c28f8a95ba1975cc0e8da5434a8ce17df54f972
Formbook
2ad430df48ef7060c1fa6c6c89698c95724291b314155288d5c13b5735d3837d
Formbook
35042592e4abe63a3a51543f2cf419f83dee5e2b44bc2d7fe33173fccd10d93a
Formbook
76a9d850411a7418f464266168a7df679b4fa00934649ed2e509156aa2875be2
Formbook
d07dcdf05ff20a2596f795af5fb57e9c599ab0dc6dfb8d536b22dcfe502d6cf3
Formbook
+ 9'358 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:nthe loader rat
Link:
https://tria.ge/reports/210906-pwsq3sbah9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.hanlansmojitovillage.net/nthe/
Unpacked files
SH256 hash:
d079cec0893abc6f920b2fbbc6855cb1e926fa8e9e8111384b069bc37c581ac1
MD5 hash:
9f4c020edaef562bb061a68f9b2c4e12
SHA1 hash:
43dfab7d93965f70a78dbb34932b2211d0e11038
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/82ee893d-8311-4cfa-a6cf-2a7252415075/
Parent samples :
35042592e4abe63a3a51543f2cf419f83dee5e2b44bc2d7fe33173fccd10d93a
d07dcdf05ff20a2596f795af5fb57e9c599ab0dc6dfb8d536b22dcfe502d6cf3
2ad430df48ef7060c1fa6c6c89698c95724291b314155288d5c13b5735d3837d
8b3535f44d1b9df9297fb95f8071f8488ca55c7511472b597942c779b400dbb9
1fd6624177dda187c2462dce333d623b4a1e3decb2cfe0045c382e9cdc1312f7
f7031a211f3a084ce9b215e9faf438125d11cf1daf963b9ec0d994a66dee6df0
40227b96f52a4e9a0cda9f3903a286bcbc78ae7a1138c9260c984d66f2f8dd0d
34a89eda5dd4aef3efb096011f27bba7354b4c624d5dc01f4b43a18ac42d6af4
SH256 hash:
6714abe36214157b34c7c57c6fc3ea1836c38440b57dded237f9c7779d83d68b
MD5 hash:
b30958fe741618dccbde80948c3b728f
SHA1 hash:
c3b492e00e83170d8eafe6df582c348394baa563
Link:
https://www.unpac.me/results/82ee893d-8311-4cfa-a6cf-2a7252415075/
SH256 hash:
81f9eac76804c02f5baaa34c91b5775f965a34ad7811218d9c24e50cb6d9a90c
MD5 hash:
bae511742374b721136acaa03b0c1fa0
SHA1 hash:
215c50455b01a78ea173bbb034ddbe4b452ea734
Link:
https://www.unpac.me/results/82ee893d-8311-4cfa-a6cf-2a7252415075/
SH256 hash:
8b3535f44d1b9df9297fb95f8071f8488ca55c7511472b597942c779b400dbb9
MD5 hash:
35ffee4482ae6ca8ce58f107fbb259c3
SHA1 hash:
f0f23a397bad7d097a605777d66eac69fe8f6317
Link:
https://www.unpac.me/results/82ee893d-8311-4cfa-a6cf-2a7252415075/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/8b3535f44d1b9df9297fb95f8071f8488ca55c7511472b597942c779b400dbb9

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 8b3535f44d1b9df9297fb95f8071f8488ca55c7511472b597942c779b400dbb9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1596302/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/185668/

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