MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9fb4c44ec5a153f4f4bfcbfa4af6db9b7fc3355ad87796740bc64c021750729. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9fb4c44ec5a153f4f4bfcbfa4af6db9b7fc3355ad87796740bc64c021750729
SHA3-384 hash: 715bbc82fb38bee0cabe6f93d0b97fd437f69474ec20936be320738c6db0659172e05752fd0b7374cd6c255008cb2657
SHA1 hash: 1a0aa551f4be4e8427fa4da3c24256ffd172c032
MD5 hash: e310cca917188ee532c385924d6a682f
humanhash: summer-neptune-bluebird-carpet
File name:Quotation-urgent-pdf-.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:518'656 bytes
First seen:2022-10-27 18:17:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:2Th7D+mxdETRYIjl+V0bsO9J1Nq2gE27Xt0B:8zaN500nLWms6B
Threatray 17'399 similar samples on MalwareBazaar
TLSH T10BB42204B6A96816CBBF2B7AB4390904D33B7507ECD5E559AEC4B0C94837704EA53F2B
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 00c8dcfc9cdcd000 (13 x Loki, 13 x AgentTesla, 11 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/325081/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.45756.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
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/1a88adaf-91f9-44d1-8443-162cc8971943
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1099664
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 732326 Sample: Quotation-urgent-pdf-.exe Startdate: 27/10/2022 Architecture: WINDOWS Score: 100 56 www.hkwx8.com 2->56 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 Sigma detected: Scheduled temp file as task from temp location 2->72 74 9 other signatures 2->74 10 Quotation-urgent-pdf-.exe 7 2->10         started        14 EzroCiigl.exe 5 2->14         started        signatures3 process4 file5 48 C:\Users\user\AppData\RoamingzroCiigl.exe, PE32 10->48 dropped 50 C:\Users\...zroCiigl.exe:Zone.Identifier, ASCII 10->50 dropped 52 C:\Users\user\AppData\Local\Temp\tmp85D.tmp, XML 10->52 dropped 54 C:\Users\...\Quotation-urgent-pdf-.exe.log, CSV 10->54 dropped 82 Uses schtasks.exe or at.exe to add and modify task schedules 10->82 84 Adds a directory exclusion to Windows Defender 10->84 86 Tries to detect virtualization through RDTSC time measurements 10->86 16 Quotation-urgent-pdf-.exe 10->16         started        19 powershell.exe 19 10->19         started        21 schtasks.exe 1 10->21         started        23 conhost.exe 10->23         started        88 Multi AV Scanner detection for dropped file 14->88 90 Machine Learning detection for dropped file 14->90 92 Injects a PE file into a foreign processes 14->92 25 EzroCiigl.exe 14->25         started        27 schtasks.exe 1 14->27         started        signatures6 process7 signatures8 60 Modifies the context of a thread in another process (thread injection) 16->60 62 Maps a DLL or memory area into another process 16->62 64 Sample uses process hollowing technique 16->64 66 Queues an APC in another process (thread injection) 16->66 29 explorer.exe 16->29 injected 33 conhost.exe 19->33         started        35 conhost.exe 21->35         started        37 conhost.exe 27->37         started        process9 dnsIp10 58 www.carnivalofmiami.com 23.251.63.227, 49700, 80 VPSQUANUS United States 29->58 94 System process connects to network (likely due to code injection or exploit) 29->94 39 WWAHost.exe 29->39         started        42 explorer.exe 29->42         started        44 autochk.exe 29->44         started        signatures11 process12 signatures13 76 Modifies the context of a thread in another process (thread injection) 39->76 78 Maps a DLL or memory area into another process 39->78 80 Tries to detect virtualization through RDTSC time measurements 39->80 46 cmd.exe 1 39->46         started        process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9fb4c44ec5a153f4f4bfcbfa4af6db9b7fc3355ad87796740bc64c021750729/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-10-25 02:40:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
26 of 41 (63.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xh5uyrhmlikt6t2l7s72jl3nxg37ym2vvwdxsz2axrsmailva4uq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
46cbbf73c50dd90268f30bec98085b53402a7de7d0911f4045fb286162687e60
Formbook
566b1792d888a840627496095ec7ef8fb969dda1390de7cbb33b91ad3a2005ac
Formbook
9e6253eadc5d2960862d03ba5e28577fc6132497bd86f359557be8b8c22c1210
Formbook
ab0843bedd48b6050c5549507e9297766ff8a12742b93ac408a517c038911a1d
Formbook
cea0844bf755c190793ac29a2cd95220862993a84c5924faeddce381fcdf063c
Formbook
d936dbd1677939645b8945767ce9525ad92f068e0d81c9316e4c83fe916811cc
Formbook
e8db90d8d2528f0767e5b82262223e07578e29f8e4166df3cf495318006ebbd6
Formbook
+ 17'389 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a20e rat spyware stealer trojan
Link:
https://tria.ge/reports/221027-wxk6ysdbdl/
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
401d37bb542e818ee49038c652fa9d769d216b912fbf638b768d2370cd184854
MD5 hash:
705e49ed906ae2317fb8f126f2ab2f4b
SHA1 hash:
33996978fe870cb59c5bf620bf4c38415ffe1e37
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8f770d91-6ff0-45fd-aeb2-62634b2543d8/
Parent samples :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 hash:
25e9a1632b1b0521a88dd92a9e618f7d0ff204901a9997bd1509494ee456d340
MD5 hash:
1756d03360a626ce28aa17c68f4b2fc5
SHA1 hash:
df5c8ce3dfa449d463030e6f60573eb676a663d8
Link:
https://www.unpac.me/results/8f770d91-6ff0-45fd-aeb2-62634b2543d8/
SH256 hash:
1792777b84a45c025cc595dfcaa4a580bd9d530bd672245d96dd10c30381ecbd
MD5 hash:
16bca457839dd283de23e6dcdc89103c
SHA1 hash:
db9478cd32d0cd3f0e38125dad0aaf9a74f231fa
Link:
https://www.unpac.me/results/8f770d91-6ff0-45fd-aeb2-62634b2543d8/
SH256 hash:
248a7c4997aacb14ca032daf9668636839f921d0a3403f09a3b0ccfdc948cbf1
MD5 hash:
a7952169b04a2c6a39661aad59e79dcf
SHA1 hash:
88722f1a32c913307c0c6385b04478a79fabd12b
Link:
https://www.unpac.me/results/8f770d91-6ff0-45fd-aeb2-62634b2543d8/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/8f770d91-6ff0-45fd-aeb2-62634b2543d8/
SH256 hash:
b9fb4c44ec5a153f4f4bfcbfa4af6db9b7fc3355ad87796740bc64c021750729
MD5 hash:
e310cca917188ee532c385924d6a682f
SHA1 hash:
1a0aa551f4be4e8427fa4da3c24256ffd172c032
Link:
https://www.unpac.me/results/8f770d91-6ff0-45fd-aeb2-62634b2543d8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b9fb4c44ec5a153f4f4bfcbfa4af6db9b7fc3355ad87796740bc64c021750729

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
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 b9fb4c44ec5a153f4f4bfcbfa4af6db9b7fc3355ad87796740bc64c021750729

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/325081/

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