MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f9717b447733bc2b01bd86663eb360b5c9192438c2b5b430b76ee92f7bb8de4. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f9717b447733bc2b01bd86663eb360b5c9192438c2b5b430b76ee92f7bb8de4
SHA3-384 hash: c09deb379f9c3ee9c7d6a6e8f29400649aba97b3369bed7e3b489a0b78281e25b0a59de207cf4e2ffef81060bc470f06
SHA1 hash: 42c53e413a1c0f9bfc8869329d5e9e6c6be68a74
MD5 hash: 0b4d1dc2d56824e1237ec10486034e41
humanhash: queen-nuts-oklahoma-ceiling
File name:0b4d1dc2d56824e1237ec10486034e41.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:74'560 bytes
First seen:2022-11-02 14:55:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 1536:QYi+RGgMUQ/U0WnH/SGaR6suhKwmXiyjsixPd:NRGgZQNWH3aR6suhKwmXiyQA
Threatray 3'403 similar samples on MalwareBazaar
TLSH T1A4732FDD766071DFC85BC472CAA91C64EA6074BB930BC203E06726AD9A4D99BCF150F3
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
0b4d1dc2d56824e1237ec10486034e41.exe
Verdict:
Malicious activity
Analysis date:
2022-11-02 14:59:04 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/52f12c8a-e38b-4f30-a1b5-1e1215e5a7cd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/327247/
Detection(s):
SecuriteInfo.com.UntrustedCertificate.Aichost.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed packed
Link:
https://www.filescan.io/uploads/63628503ce1f43143c2a76be/reports/d3c9ab4c-d313-44d0-b5b2-6102ac9cef91/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/86cb99fa-3968-43fc-9da0-fc1d19e7f373
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1103384
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 736056 Sample: CnptEaXHK7.exe Startdate: 02/11/2022 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic 2->39 41 Multi AV Scanner detection for domain / URL 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 7 other signatures 2->45 10 CnptEaXHK7.exe 15 3 2->10         started        process3 dnsIp4 37 tgc8x.tk 50.115.174.192, 443, 49710, 49711 VIRPUS United States 10->37 29 C:\Users\user\AppData\...\CnptEaXHK7.exe.log, CSV 10->29 dropped 55 Writes to foreign memory regions 10->55 57 Allocates memory in foreign processes 10->57 59 Injects a PE file into a foreign processes 10->59 15 CasPol.exe 10->15         started        file5 signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 2 other signatures 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 31 www.3dmathpuzzles.com 107.173.164.180, 49715, 80 AS-COLOCROSSINGUS United States 18->31 33 www.cashcardapp.com 18->33 35 cashcardapp.com 34.102.136.180, 49714, 80 GOOGLEUS United States 18->35 47 System process connects to network (likely due to code injection or exploit) 18->47 22 colorcpl.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f9717b447733bc2b01bd86663eb360b5c9192438c2b5b430b76ee92f7bb8de4/
Threat name:
ByteCode-MSIL.Trojan.SpywareX
Create hunting rule
Status:
Malicious
First seen:
2022-11-01 17:33:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
30 of 41 (73.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6lrpnchom54fma33btgh2zwbnojdesdrqvvwqylo3xjf553rxsa._file
Verdict:
malicious
Similar samples:
3b3c1e4ea9054675c0c55e4978755e4574caaebe81102b1dac7d28b8f8c73833
Formbook
3deefd1f1f776cc14993508ae21a6434b496b48d7c1c85ec892572e2a56473ab
Formbook
42ff33d8a2c198145c876fbfab4855fa43faaf292d10c73f144619c34714f97e
Formbook
5e37a85642397700f4d2b763aef9debbed637b8d0a55caecd88b5deea01430fb
Formbook
8a553b6a9ee5177e24eee3b0af2bf0dd813e1daf2ce6d3a90294f815606bc62e
Formbook
97601111954fcaf73abb4283200237edd6e08c37533a28f66a50aa0808484ddd
Formbook
a2942f4b52d24096733c6a8373bc3cee7f1823120bf652c688b8296b04a94a96
Formbook
c1bc25f768e41a646f902de9572b855ac973cfa7a9c6bef82c5a99123a72e67b
Formbook
d4b16018f7ea64cf88506858f2ffab461a39bd1ecef83be0fc9a96266e4f6149
Formbook
f41437ca03cac6a40974f48ba8b8b38856f9f6de955f7514b3e18471ed73789f
Formbook
+ 3'393 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bt25 rat spyware stealer trojan
Link:
https://tria.ge/reports/221102-sa1rcaccbj/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c8a32ab0-9acb-45b2-b174-367f4114d593
Unpacked files
SH256 hash:
a77a4691732b00fe5f1e483e22589929cf6a2f07808c958537efa71e3ea96d91
MD5 hash:
e54091b055aec4aaa28266b14564ef99
SHA1 hash:
051ebb8a0c79b216874ab851d18df6d4fd281232
Link:
https://www.unpac.me/results/8f635f66-d5d6-408c-8f48-ed06fb2ea894/
SH256 hash:
4f9717b447733bc2b01bd86663eb360b5c9192438c2b5b430b76ee92f7bb8de4
MD5 hash:
0b4d1dc2d56824e1237ec10486034e41
SHA1 hash:
42c53e413a1c0f9bfc8869329d5e9e6c6be68a74
Link:
https://www.unpac.me/results/8f635f66-d5d6-408c-8f48-ed06fb2ea894/
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/4f9717b447733bc2b01bd86663eb360b5c9192438c2b5b430b76ee92f7bb8de4

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
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.

Web download

Formbook

Executable exe 4f9717b447733bc2b01bd86663eb360b5c9192438c2b5b430b76ee92f7bb8de4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2260833/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/327247/

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