MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3b24e8727cb2cbd2261e7f426a6b393abb7e25fc3bd2e4fa2a249004f351305. 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: 18


Intelligence 18 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f3b24e8727cb2cbd2261e7f426a6b393abb7e25fc3bd2e4fa2a249004f351305
SHA3-384 hash: 6136f7e044c1ff379715d3fd36d0e774e0d44b58ff61dc1b2f4932d0820effe368f6b6dac104ed7f7a17195b349da9d5
SHA1 hash: bf8f2cdd2f3008f72e8f25cae8f19dc09684f928
MD5 hash: 7924895d69c4de7b650589aa75aae4d7
humanhash: william-virginia-sad-charlie
File name:COMMERCIAL INVOICE_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:482'362 bytes
First seen:2022-05-16 09:33:03 UTC
Last seen:2022-05-16 10:35:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 12288:4Y4skpPmHK7Giv2ccIe+lNiPALEqo76w+wx:4Y4skpPmHKL2BEiPANo7px
Threatray 15'610 similar samples on MalwareBazaar
TLSH T17EA40296734491E7FD380332986F469A27B7BC375A940C5F3B88F76928E1252841FE1A
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 162edc38b0b092f2 (1 x Formbook)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
COMMERCIAL INVOICE_pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-05-16 09:58:43 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/807a70b7-33d2-4ecf-9ddd-e1028263b0cd

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/271002/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for the window
Launching a process
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/17963/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/62821a9622b733139c20189f/reports/adc9d0ca-cd5b-4d80-9216-ecea5e0cbd79/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/c3a00bcf-8243-409c-aa42-84e1a573bc3e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/994753
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 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 dnsIp2 2 Behavior Graph ID: 627249 Sample: COMMERCIAL INVOICE_pdf.exe Startdate: 16/05/2022 Architecture: WINDOWS Score: 100 40 www.applelctn.info 2->40 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 5 other signatures 2->56 12 COMMERCIAL INVOICE_pdf.exe 19 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\Local\Temp\rwyuja.exe, PE32 12->36 dropped 38 C:\Users\user\AppData\Local\...\nsvA396.tmp, COM 12->38 dropped 15 rwyuja.exe 1 12->15         started        process6 signatures7 64 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->64 66 Tries to detect virtualization through RDTSC time measurements 15->66 68 Injects a PE file into a foreign processes 15->68 18 rwyuja.exe 15->18         started        21 conhost.exe 15->21         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Sample uses process hollowing technique 18->46 48 Queues an APC in another process (thread injection) 18->48 23 explorer.exe 18->23 injected process10 process11 25 raserver.exe 23->25         started        signatures12 58 Modifies the context of a thread in another process (thread injection) 25->58 60 Maps a DLL or memory area into another process 25->60 62 Tries to detect virtualization through RDTSC time measurements 25->62 28 cmd.exe 1 25->28         started        30 explorer.exe 95 25->30         started        32 explorer.exe 125 25->32         started        process13 process14 34 conhost.exe 28->34         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f3b24e8727cb2cbd2261e7f426a6b393abb7e25fc3bd2e4fa2a249004f351305/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-16 09:01:59 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 40 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6oze5bzhzmwl2itb472cnjvtsov3pys7yo6s4t5cujeqatzvcmcq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2a48c2b3780f6b0f3fd3f3f05f54066f465870e6f534237a5d283ee079882828
Formbook
a88a1ec7699128b0e1f344c880b17b839927b7580e3bf7ece152dff57d719dfe
Formbook
a9915e261e819e5388755f6e20a93b55c096eb7b81b930c7212a77be734a97b2
Formbook
b27414851c9c840afb193065ed625799cb7464c6e82a3325a6b68b16affff58f
Formbook
beab53a78651513011c1b0374269a4a282a995650cb9bc7063ae999628e578a2
Formbook
c0760105fed05b99698c3f1e5bb6ed6e2e9b386315d0e187cd075b8ed5ea7fe5
Formbook
c944efe6f7ebc5786e8db1b3a3b4296daacce868fe45318adf01617050e4ea9e
Formbook
f0023062662c42d563fd03a92e4ed00a14cf78d4c6debde99fe168babf6fa347
Formbook
+ 15'600 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s21e rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220516-ljz3vagbg8/
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
0daa290e9ed85fa7129f3353e9f35169696196fc868017ec8774626cb86f8941
MD5 hash:
ac9d1c6ec1b637c679ebfc0683392efd
SHA1 hash:
3726292b5623e005687e2a045bb204fe7a9dad9f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/deb1a629-e386-4cc2-9b11-1693ee5d98ee/
SH256 hash:
f1da17cbf74f0a82cdd768b21d6b75c8877df8a99ae71799bb68fa58fa1b3dda
MD5 hash:
45e19d622f679b5b6c9d7a35091ec937
SHA1 hash:
3355a56b2886aa58b17c17c18eaa6cb418a60f10
Link:
https://www.unpac.me/results/deb1a629-e386-4cc2-9b11-1693ee5d98ee/
SH256 hash:
f3b24e8727cb2cbd2261e7f426a6b393abb7e25fc3bd2e4fa2a249004f351305
MD5 hash:
7924895d69c4de7b650589aa75aae4d7
SHA1 hash:
bf8f2cdd2f3008f72e8f25cae8f19dc09684f928
Link:
https://www.unpac.me/results/deb1a629-e386-4cc2-9b11-1693ee5d98ee/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f3b24e8727cb/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/f3b24e8727cb2cbd2261e7f426a6b393abb7e25fc3bd2e4fa2a249004f351305

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.

Malspam

Formbook

Executable exe f3b24e8727cb2cbd2261e7f426a6b393abb7e25fc3bd2e4fa2a249004f351305

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/271002/

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