MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1a2809f94c92e79ee855d25fb1f0c369833fcceacceb6914051cddd9f767091. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1a2809f94c92e79ee855d25fb1f0c369833fcceacceb6914051cddd9f767091
SHA3-384 hash: 252c31538643ef50b8940547bbe8f13b23d4e85b54ea0f3bb9b154a7315e69fbe38aba8b2f38277376fc3df344e55426
SHA1 hash: 7934c52d343822e3d8fb1d85f50c42f018619d2f
MD5 hash: 38a43b0d704770ab33756e9daae97bf1
humanhash: fish-sodium-tennis-arkansas
File name:DOC-OP220104001_DOSOCO.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:259'156 bytes
First seen:2023-06-09 06:57:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6jMlZrGr6w/bsHuNtdDE4ilBZOJHSF1+ao/VPJ:/YxMlZrGrrbsHutE3lq42j/P
Threatray 2'637 similar samples on MalwareBazaar
TLSH T1CE44120493E1D8A7F59362B25C7A1316DEF9EA05157A9B3B03045B5AFC363C2E90F362
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
255
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
DOC-OP220104001_DOSOCO.exe
Verdict:
Malicious activity
Analysis date:
2023-06-08 09:38:06 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/6be73800-735e-4a46-8f25-7cb67398907c

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/397175/
Detection(s):
Sanesecurity.Malware.28947.BadP.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6482cd7b16ef507f214200f3/reports/2f996110-84a2-4f4c-a6e3-ee0a94a3f6ad/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f1a2809f94c92e79ee855d25fb1f0c369833fcceacceb6914051cddd9f767091
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/f9af376e-e3a2-41dc-ae3d-3a3a94138da2
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1251737
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 884756 Sample: DOC-OP220104001_DOSOCO.exe Startdate: 09/06/2023 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 6 other signatures 2->42 10 DOC-OP220104001_DOSOCO.exe 19 2->10         started        process3 file4 28 C:\Users\user\AppData\...\eberyewrfe.dll, PE32 10->28 dropped 54 Detected unpacking (changes PE section rights) 10->54 56 Maps a DLL or memory area into another process 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 14 DOC-OP220104001_DOSOCO.exe 10->14         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 3 1 14->17 injected process8 dnsIp9 30 www.groomersfirstchoice.com 170.178.192.55, 49696, 80 MULTA-ASN1US United States 17->30 32 www.elegantshopee.com 17->32 34 www.9535.football 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Uses ipconfig to lookup or modify the Windows network settings 17->46 21 ipconfig.exe 17->21         started        signatures10 process11 signatures12 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:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f1a2809f94c92e79ee855d25fb1f0c369833fcceacceb6914051cddd9f767091/
Threat name:
Win32.Trojan.Nemesis
Create hunting rule
Status:
Malicious
First seen:
2023-06-08 12:11:37 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6gribh4uzexht3uflus7whymg2mdh7govthlnekakhg53h3wociq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0074ed761aea590abca0a0f0fe2d58a82f0b9cacc91cc108d122a0091329ef84
Formbook
1c1b55beed14a73d6c5447b9914e2219dbd018cfc3484e72e258a053b7176ed4
Formbook
4431648599d5c8d9ed6324d5cfaccf83daaecf91b9637b1cf308b8004ca43757
Formbook
9337bf26f7c97890b2d01df17d8c05158f37600b503d91fcc24b609643b03ce9
Formbook
95707837be9289e4730cb3f0511c6a50f2356b34ad64d62a6ffbefc21c3d60e4
Formbook
9def050dacc6e27a12843b50352dfb883966af1dd96d031aa35f2b30ea1867e5
Formbook
ca0e3813c0c1155a09e9fb2f0e9133fd61c8438d875a3ed797b9bdf3ad79c5fb
Formbook
cec7134d68d67d6f7ee0d32945f6ee4eafeb58a68c4769867f212ad879480c22
Formbook
e57304555042d5835094d3ee4cdbcfc713e089f1af6b6764c76673a43c34c971
Formbook
+ 2'627 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rx63 rat spyware stealer trojan
Link:
https://tria.ge/reports/230609-hqyltaca3t/
Behaviour
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
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
2c64c89af1c4493df799a5925f750271289055dce40d5ecb96aecaf629e4615e
MD5 hash:
6e4da5907c0dc97cfdf3573731a6757c
SHA1 hash:
5364610b7c9d8df8092390b4a677658096163d3b
Link:
https://www.unpac.me/results/3b85a8a9-75d6-4e57-836e-a8f1a3bbedb6/
SH256 hash:
f1a2809f94c92e79ee855d25fb1f0c369833fcceacceb6914051cddd9f767091
MD5 hash:
38a43b0d704770ab33756e9daae97bf1
SHA1 hash:
7934c52d343822e3d8fb1d85f50c42f018619d2f
Link:
https://www.unpac.me/results/3b85a8a9-75d6-4e57-836e-a8f1a3bbedb6/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f1a2809f94c9/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/f1a2809f94c92e79ee855d25fb1f0c369833fcceacceb6914051cddd9f767091

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Formbook

Executable exe f1a2809f94c92e79ee855d25fb1f0c369833fcceacceb6914051cddd9f767091

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/397175/

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