MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8bbd4ca2516a674b7d8b3b75cdd35f939af1cb503ea3eac66493e3f74984f1b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8bbd4ca2516a674b7d8b3b75cdd35f939af1cb503ea3eac66493e3f74984f1b
SHA3-384 hash: 33af516f8e2c4d9af09c5d074405cf6c6a92ec012e85f16655b9a25ae3ae63ba52bd24bfe0444ab6ac6caffb23e4d704
SHA1 hash: 3736a7554df77719c0e94ec0ad4c13bd6951bfbb
MD5 hash: 632dc452634a59048e66b879cb7a3b18
humanhash: vermont-chicken-fillet-music
File name:632dc452634a59048e66b879cb7a3b18.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:274'779 bytes
First seen:2022-04-14 11:24:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3abe302b6d9a1256e6a915429af4ffd2 (277 x GuLoader, 38 x Formbook, 25 x Loki)
ssdeep 6144:zjgG0fNAdGFeO8QkXTBGWvXLXEtGZ443BkVTjps:owBbBtSGZ44aVZs
Threatray 15'052 similar samples on MalwareBazaar
TLSH T1934412A275DAB4AFCA5BA3F40EB9E327E3F5C3025119214F77600F7A6D39645C62B102
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 abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
286
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
632dc452634a59048e66b879cb7a3b18.exe
Verdict:
Malicious activity
Analysis date:
2022-04-14 11:46:00 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/a6b0704d-b457-4c45-89eb-69d51bb4d028

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/263693/
Detection(s):
Win.Trojan.Injectorx-9944056-0
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
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/13858/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/625804d3482f2f41caada7f6/reports/e075b13d-d61b-4c19-ba16-d86acba42e97/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/09ddfd0d-5b53-48c9-aaef-0866df6d5328
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/976785
Signature
Antivirus detection for URL or domain
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 609269 Sample: 3Tj2FTHSWw.exe Startdate: 14/04/2022 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 4 other signatures 2->49 11 3Tj2FTHSWw.exe 18 2->11         started        process3 file4 33 C:\Users\user\AppData\Local\Temp\fantkx.exe, PE32 11->33 dropped 14 fantkx.exe 1 11->14         started        process5 signatures6 57 Multi AV Scanner detection for dropped file 14->57 59 Tries to detect virtualization through RDTSC time measurements 14->59 17 fantkx.exe 14->17         started        20 conhost.exe 14->20         started        process7 signatures8 35 Modifies the context of a thread in another process (thread injection) 17->35 37 Maps a DLL or memory area into another process 17->37 39 Sample uses process hollowing technique 17->39 41 Queues an APC in another process (thread injection) 17->41 22 explorer.exe 17->22 injected process9 process10 24 chkdsk.exe 22->24         started        signatures11 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        29 explorer.exe 2 190 24->29         started        process12 process13 31 conhost.exe 27->31         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a8bbd4ca2516a674b7d8b3b75cdd35f939af1cb503ea3eac66493e3f74984f1b/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2022-04-13 10:06:29 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vc55jsrfc2thjn6ywo3vzxjv7e426hfvapvd5ldgje7d65eyj4nq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0a20250dd45ed290bfdae84a7d120f825a98430c4b1aa8fb1dfe5d10ecaaa9d7
Formbook
190845482673ae60d3df5d77f593e736e1e91a3bc5870e0d8057ac70c73e02ea
Formbook
209f77f7c06469c75125d639bdca79aa1751e1d76a7288d349f113f9c75b7da4
Formbook
5cef577cfd13f14d2c7468515dcd2da6bdbcbfe9e6778bf2dbf4ee212f273372
Formbook
91d99c65d090258a349298db78014461d0461e916733b3be3247410e05c31d0d
Formbook
faff2bfbf22cd4f7d3d79ae04fbff8db10e9e0c5416dd27644f5bcb0d5dfd98c
Formbook
fc0298b6968720affc88ee57d037699606f5bdeb5d6d47db892c4fec474c062d
Formbook
+ 15'042 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ud5f loader rat
Link:
https://tria.ge/reports/220414-njajashgh8/
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
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
Unpacked files
SH256 hash:
cf67ed89b1ad5002a948232de75f9cc28bc8dab6eb609a93ef254557ca4a5a48
MD5 hash:
20d4c91137cd70ee101d7c25274cceff
SHA1 hash:
37f85eee3785fc323de9546f3f1034c80fc24ef0
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/80a4c34b-4e8e-4e06-a26c-69608aa6dec1/
Parent samples :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 hash:
dc8353cc5e9312b6f761dd63b7826bf8efb7627568762d7f7018e97e7eb87c5e
MD5 hash:
32cae26b57c7c79da310a134413ee9f6
SHA1 hash:
900687a9136f5eb5274dcf5ab6ea3836a6389f76
Link:
https://www.unpac.me/results/80a4c34b-4e8e-4e06-a26c-69608aa6dec1/
SH256 hash:
a8bbd4ca2516a674b7d8b3b75cdd35f939af1cb503ea3eac66493e3f74984f1b
MD5 hash:
632dc452634a59048e66b879cb7a3b18
SHA1 hash:
3736a7554df77719c0e94ec0ad4c13bd6951bfbb
Link:
https://www.unpac.me/results/80a4c34b-4e8e-4e06-a26c-69608aa6dec1/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a8bbd4ca2516/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/a8bbd4ca2516a674b7d8b3b75cdd35f939af1cb503ea3eac66493e3f74984f1b

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
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.

Web download

Formbook

Executable exe a8bbd4ca2516a674b7d8b3b75cdd35f939af1cb503ea3eac66493e3f74984f1b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2144805/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/263693/

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