MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6. 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 4 File information Comments
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SHA256 hash: fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6
SHA3-384 hash: 17de37865519d6920c1f44ed2e6c493f82f6972383f8faeb99e01769c1e037749f10459180518a1ade3daa1698741204
SHA1 hash: 8222046cd5c8c57d2b4e51f4b987ac339afb2461
MD5 hash: 5b1b412ccc9ccca7f9156c3a4e3badee
humanhash: magazine-hot-apart-michigan
File name:Purchase Order_A7.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:627'712 bytes
First seen:2023-10-24 05:33:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:XhNh6sxTA6qNh3NDsJkr7ZAYkUPBzknjq2/68Q3ZfKNtX7+A7yNse8yFx5t1h:XDDxs6gzsJ+PBzknjx6vQV7wNsIFN1
Threatray 132 similar samples on MalwareBazaar
TLSH T13AD4126232F95B3BD9EAAFF5C4E029951374B05E9C42E38C4E52B0CF9989F138540B5B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 00c4cccac6a49000 (15 x AgentTesla, 4 x Formbook, 2 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
306
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Purchase Order_A7.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-10-24 06:02:13 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/5f8dc2b6-6b50-42a6-a9b0-ce127696de07

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/455848/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6537574ec2a76fbfed330035/reports/ff3151bb-6e8e-4986-8aec-6fdc70ddd7bc/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6
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:
Unknown
Link:
https://analyze.intezer.com/analyses/335e7017-6697-4fb5-b58a-208d99d8383c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1331020
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1331020 Sample: Purchase_Order_A7.pdf.exe Startdate: 24/10/2023 Architecture: WINDOWS Score: 100 33 www.yushan2021.com 2->33 35 www.vozandvalor.com 2->35 37 11 other IPs or domains 2->37 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 12 other signatures 2->45 11 Purchase_Order_A7.pdf.exe 3 2->11         started        signatures3 process4 signatures5 51 Tries to detect virtualization through RDTSC time measurements 11->51 53 Injects a PE file into a foreign processes 11->53 14 Purchase_Order_A7.pdf.exe 11->14         started        process6 signatures7 55 Modifies the context of a thread in another process (thread injection) 14->55 57 Maps a DLL or memory area into another process 14->57 59 Sample uses process hollowing technique 14->59 61 Queues an APC in another process (thread injection) 14->61 17 explorer.exe 39 1 14->17 injected process8 dnsIp9 27 memphiswaterandmold.com 192.185.78.86, 49718, 80 UNIFIEDLAYER-AS-1US United States 17->27 29 iptv-germany.com 162.254.39.20, 80 COGECO-PEER1CA United States 17->29 31 2 other IPs or domains 17->31 20 msiexec.exe 17->20         started        process10 signatures11 47 Modifies the context of a thread in another process (thread injection) 20->47 49 Maps a DLL or memory area into another process 20->49 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6/
Threat name:
Win32.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-10-24 05:34:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
16 of 23 (69.57%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7kfs42vxrinwzoaeu4jfmjfwsousohqzuyeron2tjupuohdxmlda._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0372bd9c40187e5b4df86dae74c475d5f7b01de4424281dda221a579be971fb8
Formbook
0c6509de077fff4ef7548e682f672a5169136f7ce470b420f2f33890228bf0a4
Formbook
1e053c6bce5db98306f6795783016d7d94aaac748c80798210d7932e0c248d61
Formbook
3e1c698228509853ff20630c605525450e37d2741f7137b3784a21d4e5d7a998
Formbook
4af5374d05140e1ebf05625397c061e7e6e6396597399880f903cdda22466875
Formbook
62f5f91f3533cffc8b6213b9cffeb8315f09d2219717d9477b08f470f312bc29
Formbook
6ec844914b335f0e27b9f536da5691fcc06e6ecc80d0af8dd7bc3ed8b3ee0a60
Formbook
89bcf1ff783e9986332cd6debe5fe5f424439518b7638f56b8322541a460f596
Formbook
a40c92a00ca0f04cd04883d555859cf2c8e884a01329defd3631c7cc61204ff8
Formbook
+ 122 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fw02 rat spyware stealer trojan
Link:
https://tria.ge/reports/231024-f9ft1aah2v/
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
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
79141dc4011f6a59e87b4b27ba057c5f3e476edc8a924e1eedb2bda903f7f887
MD5 hash:
d0c94653d4abc0aa6af3d23389f76fe1
SHA1 hash:
234b1e5b5d4530c3b20cf68b87d10be38ebee3ab
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/0912aa0e-9d58-420d-9bf6-8a208e9744c1/
Parent samples :
89bcf1ff783e9986332cd6debe5fe5f424439518b7638f56b8322541a460f596
fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/0912aa0e-9d58-420d-9bf6-8a208e9744c1/
SH256 hash:
fd176165a243e915851f120a7ae83a014f5ec6a3bb3f108c94cbddd49b7c8d83
MD5 hash:
d52354b7855f5d07fc4f1f78cb80b004
SHA1 hash:
ea542266f6208a83c7b34bda37c46f36f10dab1b
Link:
https://www.unpac.me/results/0912aa0e-9d58-420d-9bf6-8a208e9744c1/
SH256 hash:
ae9fa6c15aff99f28eb145a1fde3e93cffb8de60881792f6f96875326b7f0021
MD5 hash:
c012b1be8d0d4b7569beb33b2145fbd2
SHA1 hash:
47286d343999542d506f306ebf10ce032c3d800f
Link:
https://www.unpac.me/results/0912aa0e-9d58-420d-9bf6-8a208e9744c1/
SH256 hash:
fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6
MD5 hash:
5b1b412ccc9ccca7f9156c3a4e3badee
SHA1 hash:
8222046cd5c8c57d2b4e51f4b987ac339afb2461
Link:
https://www.unpac.me/results/0912aa0e-9d58-420d-9bf6-8a208e9744c1/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fa8b2e6ab78a/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/fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Malspam

Formbook

Executable exe fa8b2e6ab78a1b6cb804a7125624b693a9271e19a6091737534d1f471c7762c6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/455848/

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