MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c
SHA3-384 hash: 6c8f0e554299bfcccd4c89b0b19f43d7dc83c27a52c3036c71d4b48411bbfd799a5ea2e24b2ab35dbeaf95e1dd1e45f4
SHA1 hash: 2aebc68d17044d1c2a80a7294d46824b65566a73
MD5 hash: f3b613c87041ba6b36702f3e9526094a
humanhash: fanta-minnesota-ohio-queen
File name:f3b613c87041ba6b36702f3e9526094a.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:546'816 bytes
First seen:2021-09-22 18:04:17 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:QkRDmtiK5oBHPVE11StKK5L4UbWjO5J3uu4uGyWhxkk:Z+FoBHPG1xbYWjEuu4uGyWhOk
Threatray 9'526 similar samples on MalwareBazaar
TLSH T1E6C4233DC6A9C374C9158BBD215241450FB4E2CEFB23DA7ABFD6708A7D0E7818229935
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
290
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
KOC.doc
Verdict:
Malicious activity
Analysis date:
2021-09-22 10:41:56 UTC
Tags:
exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/b08ca893-7180-41fa-aa38-b96c350822b5

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/190366/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.26929.UNOFFICIAL
Create hunting rule

Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b555829-a602-48f4-b4e3-7f4bf23bcae1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/855915
Signature
.NET source code contains potential unpacker
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
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 signatures2 2 Behavior Graph ID: 488349 Sample: SZqJLa4U5d.exe Startdate: 22/09/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 7 other signatures 2->42 10 SZqJLa4U5d.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\SZqJLa4U5d.exe.log, ASCII 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 SZqJLa4U5d.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.tineue.com 47.91.170.222, 49802, 80 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC United States 17->30 32 www.watdomenrendi05.com 17->32 34 www.usdigipro.com 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 mstsc.exe 17->21         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-22 10:18:48 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
6bcdb1b6795c22308aee5d390cfae409d21a3238a304466dd54c1dee43570afd
Formbook
6c0e85b84f2b1dfdb580a168386ad91efe7f734066ff3a12a0d359fcb4711dca
Formbook
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
Formbook
7162b4c9de1772aa721d26d185fd1b7e32a9de5c6ebfd86cab3ef0ed7561a837
Formbook
a99b696e8ac16303843b26c95c982d5be9b9fd657d843937cc586c9a8dc29b83
Formbook
af0af3ebf3ac231ad77dbe4cbfa0fb2d48312d4ca0b5431081046ab09aa3b552
Formbook
d2d6a8c31acdd92eb9a005e2fac8838a382ab0425fc01bc88616bda185ab7b4c
Formbook
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
Formbook
f03c40561ba64d0797bcf79bfefd015c8d9ca010f1bd67b3d27ffab584a9911e
Formbook
+ 9'516 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:if60 rat spyware stealer trojan
Link:
https://tria.ge/reports/210922-wn8wnafhfm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.handelsbetriebposavec.com/if60/
Unpacked files
SH256 hash:
ade224c5af46b5e0b4a3650a5544b20e9dad7e6fa5aeeac0037e05d83fdcb177
MD5 hash:
42ae73cdadc87e07cc5e94668c52eb8e
SHA1 hash:
d1882744abbca9ac468f23867a264a5a2a49743f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/79358a49-e2ce-4fe3-adc5-7b45dd5a35dc/
Parent samples :
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
7162b4c9de1772aa721d26d185fd1b7e32a9de5c6ebfd86cab3ef0ed7561a837
99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c
49d82a6b19fe35893b419696bace48db225826ccfa73da61ca22f59f7f045406
1758a9b18032ce82f4e95249413ee1a8cbade1ef2cb773bc958502801f3af738
581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223
680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd
SH256 hash:
e2f6a49aa6bdc88a707c333953692ecd1394ca5c9fb7103e37990b2d079c588a
MD5 hash:
5a64655cc13c08d41fd94124b856536b
SHA1 hash:
e8497030f0ab094afe3a120ec527de600ea5be1a
Link:
https://www.unpac.me/results/79358a49-e2ce-4fe3-adc5-7b45dd5a35dc/
SH256 hash:
cac8b347040a359c02ae5e658d3d76230c7dd7eb33505605ed0b9bc49ff268c7
MD5 hash:
71a894ff252c767b80d65ab1e54fda2b
SHA1 hash:
bcc4ff628585ca28b8b0f2c30e63049b910d4d49
Link:
https://www.unpac.me/results/79358a49-e2ce-4fe3-adc5-7b45dd5a35dc/
SH256 hash:
63cf88ad75133eb27128f68f0e8a49112c9572779ba2d1c1ee08eff3c28ef364
MD5 hash:
be5b35053b86c251b7bd4f2bb410f524
SHA1 hash:
32cfb185fbe32ea7e71f08630e012ccf2abf0b6e
Link:
https://www.unpac.me/results/79358a49-e2ce-4fe3-adc5-7b45dd5a35dc/
SH256 hash:
99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c
MD5 hash:
f3b613c87041ba6b36702f3e9526094a
SHA1 hash:
2aebc68d17044d1c2a80a7294d46824b65566a73
Link:
https://www.unpac.me/results/79358a49-e2ce-4fe3-adc5-7b45dd5a35dc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c

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.

Web download

Formbook

Executable exe 99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/190366/
  
URLhaus
https://urlhaus.abuse.ch/url/1589241/
  
Delivery method
Distributed via web download

Comments