MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af757217c016eb5365af3d45f7afc0263b2dca31a0cdf7d05e3f05e45cb9b799. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: af757217c016eb5365af3d45f7afc0263b2dca31a0cdf7d05e3f05e45cb9b799
SHA3-384 hash: 6a77b45c17bf9ddbff4730a176102cadd9cc3f4e81cc3c2f511f9c25a9e6647c2cb81a318ce99ef777110f91916578a3
SHA1 hash: 18de73aeef637a055d409f80819865b8669c4f29
MD5 hash: 8a70c0693c0d55a72eda944f21c89346
humanhash: speaker-aspen-oregon-football
File name:ungziped_file
Download: download sample
Signature Formbook
Create hunting rule
File size:739'840 bytes
First seen:2025-03-24 12:19:49 UTC
Last seen:2025-03-24 12:21:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'751 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:OPalRtkvOZiMR4oa6Dq/ONRT8EAykTKrqjNQPCfMMT5/6LyrM:OPKRt8OZl4oa6Dq2gHykTKrqz0MTl60M
TLSH T1F6F40160A265C523EEA503F46971F2B413B5AEB9F521E3D98FDE7CDB70807206B01366
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
394
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ungziped_file
Verdict:
No threats detected
Analysis date:
2025-03-25 07:04:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dbd1732f-b333-45c2-8880-2115f473a3b9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e24bb6bb84e066269ed88f
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected powershell
Link:
https://www.filescan.io/uploads/67e14e24e245f7bec6d1836a/reports/733b4aa7-845b-464e-99df-46a3478084a2/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/af757217c016eb5365af3d45f7afc0263b2dca31a0cdf7d05e3f05e45cb9b799
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1647020
Behaviour
Behavior Graph:
n/a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/af757217c016eb5365af3d45f7afc0263b2dca31a0cdf7d05e3f05e45cb9b799
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/af757217c016eb5365af3d45f7afc0263b2dca31a0cdf7d05e3f05e45cb9b799/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2025-03-17 06:29:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v52xef6ac3vvgznphvc7pl6aey5s3srrudg7puc6h4c6ixfzw6mq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250324-phzmgatjz5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c0aaebc7-a10c-4af9-b8c7-f7d791261a02
Unpacked files
SH256 hash:
f60a24b92fae48f6a753e23756e81bc20d4e9ab0ef8ca2c4c1719e5b521bcfe6
MD5 hash:
7b42e6fe0c33a4479d04426e14ce41c5
SHA1 hash:
0ef906c70ecfd6b3b50fa9d7e4824a6bfc12de22
Link:
https://www.unpac.me/results/4ae84b1e-cb05-46c5-8984-92a20138f3ee/
SH256 hash:
6bc74283efb95a49c231bf961aab4c3d1337187085af234be86529311e2d46b1
MD5 hash:
0d6abe01024d7b2e44c1a6bb3b0c6127
SHA1 hash:
25b40aa48bf2f25ab9adac68d52686bf852aedc0
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/4ae84b1e-cb05-46c5-8984-92a20138f3ee/
SH256 hash:
fc6795eea254ce3fba9b3d460ee522248702163fa7f0c6a393fd501eb484f154
MD5 hash:
38e49fe7bb938d5ecbdd15621c86cdb6
SHA1 hash:
f56ff6479672106b6fdcd7e317f97415e01fb8cd
Link:
https://www.unpac.me/results/4ae84b1e-cb05-46c5-8984-92a20138f3ee/
SH256 hash:
750ea86c4653d26466f07091e66331cef155faf328d90627314f8e24aca0cbf6
MD5 hash:
32ac9c022ab066a847bcef5f3c04d6c3
SHA1 hash:
9de1ccad57aa1aa368173bf544984620f5a90ba8
Link:
https://www.unpac.me/results/4ae84b1e-cb05-46c5-8984-92a20138f3ee/
SH256 hash:
af757217c016eb5365af3d45f7afc0263b2dca31a0cdf7d05e3f05e45cb9b799
MD5 hash:
8a70c0693c0d55a72eda944f21c89346
SHA1 hash:
18de73aeef637a055d409f80819865b8669c4f29
Link:
https://www.unpac.me/results/4ae84b1e-cb05-46c5-8984-92a20138f3ee/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/af757217c016/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/af757217c016eb5365af3d45f7afc0263b2dca31a0cdf7d05e3f05e45cb9b799

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:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

Formbook

Executable exe af757217c016eb5365af3d45f7afc0263b2dca31a0cdf7d05e3f05e45cb9b799

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments