MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2cfd3a8cdfe508b651f6fdc788ba902c68450a0ec1c55182efa86aa989d3237. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: b2cfd3a8cdfe508b651f6fdc788ba902c68450a0ec1c55182efa86aa989d3237
SHA3-384 hash: 6ce9f8b5f4056c07dccdf30fc40edba71e09e9ad43b084f596b88de7171c060e7f0ea210811f5505b126e24b7b0435ef
SHA1 hash: 82859234de45a2c2c7caf7a33276ebb74fafeaa4
MD5 hash: c9a95f71ed9058798121d514a65b2358
humanhash: video-monkey-avocado-wisconsin
File name:sdvck.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:218'752 bytes
First seen:2022-04-27 14:10:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:l1NjcVVnLpPunbi77fummFuYL1C/siNBs3dkwDv5f3nFiqUxUiL974jk3eeRS5CO:HNeZmijumWSsg2dxtvDV8JQIO
Threatray 15'247 similar samples on MalwareBazaar
TLSH T1512412507259C073C9F32AB10E7E9F738BF9992A24F4430F53A46B553C23A526C1D7AA
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.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 James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
278
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Reverse-Final.exe
Verdict:
Malicious activity
Analysis date:
2022-04-27 18:34:33 UTC
Tags:
formbook opendir trojan stealer
Link:
https://app.any.run/tasks/8c0c7ab8-6aac-4c20-ab60-eea77fa16e03

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/267251/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/62694efbbc7a5945266ed20e/reports/6ff23266-1024-4df5-a366-0c237804ae2d/overview
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/68761531-0a18-4cb9-a5f3-50225e6928d6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/984124
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
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)
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: Suspicious Remote Thread Created
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 616620 Sample: sdvck.exe Startdate: 27/04/2022 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 5 other signatures 2->51 11 sdvck.exe 18 2->11         started        process3 file4 35 C:\Users\user\AppData\Local\...\fvzqtosri.exe, PE32 11->35 dropped 14 fvzqtosri.exe 11->14         started        process5 signatures6 59 Multi AV Scanner detection for dropped file 14->59 61 Tries to detect virtualization through RDTSC time measurements 14->61 17 fvzqtosri.exe 14->17         started        process7 signatures8 37 Modifies the context of a thread in another process (thread injection) 17->37 39 Maps a DLL or memory area into another process 17->39 41 Sample uses process hollowing technique 17->41 43 Queues an APC in another process (thread injection) 17->43 20 explorer.exe 17->20 injected process9 process10 22 help.exe 20->22         started        signatures11 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        27 explorer.exe 2 161 22->27         started        29 explorer.exe 104 22->29         started        31 WerFault.exe 22->31         started        process12 process13 33 conhost.exe 25->33         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/b2cfd3a8cdfe508b651f6fdc788ba902c68450a0ec1c55182efa86aa989d3237/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-04-26 14:32:25 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wlh5hkgn7ziiwzi7n7ohrc5jaldiiufa5qofkgbo7kdkvge5gi3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0c66120f301e6e13d6b760c5a63f36aed5fd338626a5abfab3f3750b7302d992
Formbook
1c1307eefcccf13fa510b275d6286cae2b6d6fdd5c656d0fe5d5479c09df3310
Formbook
2a48c2b3780f6b0f3fd3f3f05f54066f465870e6f534237a5d283ee079882828
Formbook
3c010d88a118ba3cc666e05c6f8f82159ac38e5486b5ed60c65d870287b8cff6
Formbook
4a7aa26a59cccaa38181f61e413214368bd2cb3b8aa9c93c8694cc7d37591a3f
Formbook
51ca9a86ecb638b2805cd27a752159a05d4a3317c11ea43fb0f0cca78601c8dc
Formbook
8392408d685d10ddf024a7e4f47976e03a00fd787bd4ee0932766c4b9b278bc0
Formbook
88eed605657dcc9cc542b4a3850b49e5ee83ffa39120c04669fb9f1d53955c43
Formbook
c652919676cc6f3ea808c6e1023de343d27ed8f72f4f1b94523c4ecfb09bf223
Formbook
+ 15'237 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sy2h rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220427-rg9gdscegp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
4e779ca858ef0651e709e5335b20ec9a73433bbc7ed055f0e55c048496fc1708
MD5 hash:
6e017aa5366394143d9eb6d6439039ac
SHA1 hash:
6210f57dfd84e9342294c110790b97f3ada59b1a
Link:
https://www.unpac.me/results/41b1fab2-94a4-4587-92f3-79ab55158f43/
SH256 hash:
4ee53f73e75b019f6d1c98c30a337b1c16a440b3bb41c4be411575806d3fb8bb
MD5 hash:
5210e8bf829af284c4d3c842565acadf
SHA1 hash:
14c9f4b3582239ae10c9676527cc47b5717f76f6
Link:
https://www.unpac.me/results/41b1fab2-94a4-4587-92f3-79ab55158f43/
SH256 hash:
b7bf0e4c2ae6b71ef10158e449e187630a71f70b6582ac59ad7f768266240a2f
MD5 hash:
f8e0406930f8bf020563421eb3ff5a16
SHA1 hash:
2a9a9e70fefe08fd1dde475a7515d9db926a918c
Link:
https://www.unpac.me/results/41b1fab2-94a4-4587-92f3-79ab55158f43/
SH256 hash:
b2cfd3a8cdfe508b651f6fdc788ba902c68450a0ec1c55182efa86aa989d3237
MD5 hash:
c9a95f71ed9058798121d514a65b2358
SHA1 hash:
82859234de45a2c2c7caf7a33276ebb74fafeaa4
Link:
https://www.unpac.me/results/41b1fab2-94a4-4587-92f3-79ab55158f43/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b2cfd3a8cdfe/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/b2cfd3a8cdfe508b651f6fdc788ba902c68450a0ec1c55182efa86aa989d3237

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/267251/
  
URLhaus
https://urlhaus.abuse.ch/url/2167568/

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