MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e
SHA3-384 hash: 6e40b01250cfbd3028e594d350d3816acbc1cdc983d1456fed2e41d001ebdda627ce38516d01b36afe983493bff41c2e
SHA1 hash: fb3d7c13dc44c3cb476fd0a0f7fd3b377373e8d3
MD5 hash: 266b256a9d1e3e48d3e7f332d55808bc
humanhash: seventeen-happy-lactose-winter
File name:PO#2420009.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:650'752 bytes
First seen:2024-02-19 10:09:15 UTC
Last seen:2024-02-19 11:24:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'652 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 12288:vSmPwRYnOELz89OW+pPqwABljLt2EnS3KrNLr8StEotSnFKIFN:vSmP0Y74uPqwABlHtzSaaSLSnsiN
Threatray 802 similar samples on MalwareBazaar
TLSH T125D4231A33A5C727CEE65DB7E8B4489E42B276062473E38C6CC7216E0D67B100765BE7
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon ccd4cc68f0d4d469 (6 x Formbook, 5 x AgentTesla, 3 x PureLogsStealer)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
289
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e.exe
Verdict:
Malicious activity
Analysis date:
2024-02-19 10:23:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/33f48040-a162-4630-babb-d1daebb3cf77

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/476764/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d32900781f5716463d71c3/reports/178c417f-4ad3-4bd2-8508-50e83a6c7944/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e
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/0183552f-51ca-41f8-ac64-c922d8ed11f3
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1394457
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1394457 Sample: PO#2420009.exe Startdate: 19/02/2024 Architecture: WINDOWS Score: 100 54 www.techmalabar.com 2->54 56 www.sungnamdobae.com 2->56 58 13 other IPs or domains 2->58 74 Snort IDS alert for network traffic 2->74 76 Found malware configuration 2->76 78 Malicious sample detected (through community Yara rule) 2->78 80 14 other signatures 2->80 11 PO#2420009.exe 7 2->11         started        15 aSXtUrcyfD.exe 5 2->15         started        signatures3 process4 file5 50 C:\Users\user\AppData\...\aSXtUrcyfD.exe, PE32 11->50 dropped 52 C:\Users\user\AppData\Local\...\tmpECF4.tmp, XML 11->52 dropped 88 Uses schtasks.exe or at.exe to add and modify task schedules 11->88 90 Adds a directory exclusion to Windows Defender 11->90 92 Tries to detect virtualization through RDTSC time measurements 11->92 17 PO#2420009.exe 11->17         started        20 powershell.exe 23 11->20         started        22 schtasks.exe 1 11->22         started        24 PO#2420009.exe 11->24         started        94 Antivirus detection for dropped file 15->94 96 Multi AV Scanner detection for dropped file 15->96 98 Machine Learning detection for dropped file 15->98 100 Injects a PE file into a foreign processes 15->100 26 aSXtUrcyfD.exe 15->26         started        28 schtasks.exe 1 15->28         started        signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 17->66 68 Maps a DLL or memory area into another process 17->68 70 Sample uses process hollowing technique 17->70 72 Queues an APC in another process (thread injection) 17->72 30 explorer.exe 58 1 17->30 injected 33 WmiPrvSE.exe 20->33         started        35 conhost.exe 20->35         started        37 conhost.exe 22->37         started        39 conhost.exe 28->39         started        process9 dnsIp10 60 www.mfqnb.site 157.119.94.120, 49718, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Hong Kong 30->60 62 www.sungnamdobae.com 211.115.125.42, 49719, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 30->62 64 5 other IPs or domains 30->64 41 help.exe 30->41         started        44 colorcpl.exe 30->44         started        process11 signatures12 82 Modifies the context of a thread in another process (thread injection) 41->82 84 Maps a DLL or memory area into another process 41->84 86 Tries to detect virtualization through RDTSC time measurements 41->86 46 cmd.exe 41->46         started        process13 process14 48 conhost.exe 46->48         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2024-02-19 02:14:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=te4ecebxillzd5g3zxdvov52y2wh7xpr5ninz3c2olnn3tsezspa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2a1b5e6dcd2c73e73fa3cdd788771c9f25152cb60d8c8ad186983327f541d0fa
Formbook
3c89aeb703a2550cc4824ea72fb1003cb74433c85387717afd025fa584865d94
Formbook
4018310881b6b77db2e97b400ecee07ca40d65d72f604f8db0f85b8815d3c94e
Formbook
446ff8a7bbf81d173be5d0a31738f87e2738af8312bc8f4aa4ca3b92b951fd3e
Formbook
7145bd1637fdc8111b86d7586c07526d2c9db8f4e2f30d99ea9740feecfd3d2a
Formbook
d734447cac7e7f4656b9eeae3a3afbbbdb5de5383a086258e8c2bbd60af69489
Formbook
f73f985bf2f74cc1006a5e911bbd7940073809b01da2823a6bb1db85288c0926
Formbook
+ 792 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fr07 rat spyware stealer trojan
Link:
https://tria.ge/reports/240219-l7c8zscb7v/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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:
353fa3b8fe94c2c8445be2eed0bed7612623bbbd82067e8b9b58c120eb6166ac
MD5 hash:
6e373f215f216aff938f65ce43e377bd
SHA1 hash:
a6cf7fbf34779305a4cd3a6f16baa36dce31c54c
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/56084b1d-de01-4bf2-853f-2ab4e3e591e7/
Parent samples :
0cae14234a421c5fa50da5945027c7d75167ae1c6517d7ce8733b4eb91b4c221
993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/56084b1d-de01-4bf2-853f-2ab4e3e591e7/
SH256 hash:
2fd40099cbf3b954dd474b4f421272db94338b27e60d983a0909ccf92fb5ab97
MD5 hash:
ff8055b7b062c2ef1401270425c1948e
SHA1 hash:
7c47e1e9dc0ca094d695d1759788cce1e8a8eaef
Link:
https://www.unpac.me/results/56084b1d-de01-4bf2-853f-2ab4e3e591e7/
SH256 hash:
06e657f27dec7d4238de33bccffe2afe0ddeb0db34b1b67c9824784dc4c2ab0b
MD5 hash:
4e889cbaa7a03d4d3c31d6ef203ad840
SHA1 hash:
7b2723a8cbfa237773b733fd59c8445ea9e3356b
Link:
https://www.unpac.me/results/56084b1d-de01-4bf2-853f-2ab4e3e591e7/
SH256 hash:
993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e
MD5 hash:
266b256a9d1e3e48d3e7f332d55808bc
SHA1 hash:
fb3d7c13dc44c3cb476fd0a0f7fd3b377373e8d3
Link:
https://www.unpac.me/results/56084b1d-de01-4bf2-853f-2ab4e3e591e7/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/993841103742/report/overview.html
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/993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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 993841103742d791f4dbcdc75757bac6ac7fddf1eb50dcec5a72daddce44cc9e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/476764/

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