MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f5161a12c4c8522e00196b39b3ee82c620da9914f8b861d6eee31cb8662d18b. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f5161a12c4c8522e00196b39b3ee82c620da9914f8b861d6eee31cb8662d18b
SHA3-384 hash: d3463c527983468d80f60db57f93d9b6b80eb4b34143088e3a25d8c984f7e0c15e83cc2ed825b58efbb622bac123e05f
SHA1 hash: 23e5e71afa92c5ff75e5dc899ecc756f841b8342
MD5 hash: 3378417b0ce72de02f6d20add03024e4
humanhash: tango-orange-arizona-shade
File name:RFQ.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'214'976 bytes
First seen:2020-10-17 06:57:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:dFbfh8PstqfJ7oeXS0JyxDW8ZQQ6xuAP:vyPstq5ZJQDW8ZQQEuAP
Threatray 2'497 similar samples on MalwareBazaar
TLSH 7645B005EA188E63CCDF4FF94967C018F7743D025915DA0F2D9C76D82AB276026E6E8B
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: server.miyoshi.biz
Sending IP: 111.235.136.178
From: Natalya Povolnova <office@infintetadeltd.com>
Reply-To: sjrkintluea@gmail.com
Subject: Request For Quotation(Urgent)
Attachment: RFQ.ARJ (contains "RFQ.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/72473/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42621.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/494327
Signature
.NET source code contains potential unpacker
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
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 299614 Sample: RFQ.exe Startdate: 17/10/2020 Architecture: WINDOWS Score: 100 31 www.athomecovidcare.com 2->31 33 athomecovidcare.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 6 other signatures 2->47 11 RFQ.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\RFQ.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 RFQ.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.coraldetectionsystem.com 199.34.228.77, 49755, 80 WEEBLYUS United States 18->35 37 extremecouponing.online 34.102.136.180, 49758, 49759, 80 GOOGLEUS United States 18->37 39 2 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 cmstp.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 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/8f5161a12c4c8522e00196b39b3ee82c620da9914f8b861d6eee31cb8662d18b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-16 17:13:29 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r5iwdijmjscsfyabs2zzwpxifrra3kmrj6fymhlo5yy4xbtc2gfq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0713f11756d56d7b064989ad057ab768f0cbef644ee45b96f1ef2a9daefd0eaa
Formbook
180c1029f70e0bc02acbd67fb8f8628b16dc896b6894fff0c1527247f1adaa85
Formbook
3efb5ed25276775c95cc60b4c8227a1401f5525d629148d393f5b85c25c565ec
Formbook
3f8bef60842d6aa5827f315301d8b8b116a0938ed26f9da7eda3db51c104efb4
Formbook
41e247af1c9e83534cd1a251b618432759435c3f9c9dfd2c8760f712a6ccc5a4
Formbook
4ab3ba278dacd218a4308aa0074105546a52256e029a29d67f8291facf25fd43
Formbook
a2c689776ac0293d25b03d0c864f9c5a5314d06da7a126682350939196eb16e6
Formbook
b9aac9e8bc1b19d0bdecac73e757f9d3bbcf51f9b5d883f34a3ecad591716582
Formbook
da8c31096f9e2ffc9a1fea4a63d6440cfda55349845300b4f333a02317c73dde
Formbook
f638e03e33b24d736db2873b3dee14d8312731d040adb93265b99e21b94b3978
Formbook
+ 2'487 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201017-kqxqsgmmva/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Gathers network information
Suspicious behavior: MapViewOfSection
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.208ky.com/nl8/
Unpacked files
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/9fd62d98-f940-4aa5-86f9-906d8825bca1/
SH256 hash:
68f59cab84ef16001fcca8c952088250e2d925ffb43dc3f2d03e846daba46753
MD5 hash:
1c5abd1262b7d3b0cd727fe7fbd8b873
SHA1 hash:
c4c9646ce63d0f0fb0f76ad751facd832156e812
Link:
https://www.unpac.me/results/9fd62d98-f940-4aa5-86f9-906d8825bca1/
SH256 hash:
8b13cd21c6fb12a1cb9e57aba89c3bc8dfafc968a141b1e740433fab655294eb
MD5 hash:
e516efc4307f30ade4c58099085fe46a
SHA1 hash:
5fa7fe7476a8cad37e3c65c9567ff2ac73b59a44
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9fd62d98-f940-4aa5-86f9-906d8825bca1/
Parent samples :
180c1029f70e0bc02acbd67fb8f8628b16dc896b6894fff0c1527247f1adaa85
4ab3ba278dacd218a4308aa0074105546a52256e029a29d67f8291facf25fd43
3f8bef60842d6aa5827f315301d8b8b116a0938ed26f9da7eda3db51c104efb4
b9aac9e8bc1b19d0bdecac73e757f9d3bbcf51f9b5d883f34a3ecad591716582
a2c689776ac0293d25b03d0c864f9c5a5314d06da7a126682350939196eb16e6
f638e03e33b24d736db2873b3dee14d8312731d040adb93265b99e21b94b3978
da8c31096f9e2ffc9a1fea4a63d6440cfda55349845300b4f333a02317c73dde
0713f11756d56d7b064989ad057ab768f0cbef644ee45b96f1ef2a9daefd0eaa
8f5161a12c4c8522e00196b39b3ee82c620da9914f8b861d6eee31cb8662d18b
03c78086d04631f011e45da72afc76354452b162c58447b6ee2edc75c15e18dd
SH256 hash:
8f5161a12c4c8522e00196b39b3ee82c620da9914f8b861d6eee31cb8662d18b
MD5 hash:
3378417b0ce72de02f6d20add03024e4
SHA1 hash:
23e5e71afa92c5ff75e5dc899ecc756f841b8342
Link:
https://www.unpac.me/results/9fd62d98-f940-4aa5-86f9-906d8825bca1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8f5161a12c4c8522e00196b39b3ee82c620da9914f8b861d6eee31cb8662d18b

File information

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

Malspam

Formbook

arj 59a9337ec4241081ca16e2dc40e79438a63115ce5e371126e004d4688b29ce2f

Formbook

Executable exe 8f5161a12c4c8522e00196b39b3ee82c620da9914f8b861d6eee31cb8662d18b

(this sample)

  
Dropped by
MD5 505ce046d1c02fd15db1fc15182b3adb
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72473/
  
Dropped by
SHA256 59a9337ec4241081ca16e2dc40e79438a63115ce5e371126e004d4688b29ce2f

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