MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70
SHA3-384 hash: 8211e0ec1555a93dd77144785ff665350824bb2555b3d8a6212ae32304b070f4e7f1ae51ad49ce375898fe2dafb866cd
SHA1 hash: f646af3704cda24ed68645b12972c57fcd938c8a
MD5 hash: 8f5553ae87e75bceaefd4619b9161424
humanhash: wisconsin-cup-venus-maryland
File name:dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70
Download: download sample
Signature Formbook
Create hunting rule
File size:790'528 bytes
First seen:2025-06-06 13:14:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:X+qer3Y7LTLjVTfLBUjKfTWQ7fRMolevo2FZ+fm34MoVFzmGFkmBhUi:XGryVvBfflfRxe7rDKvPOi
Threatray 3'833 similar samples on MalwareBazaar
TLSH T106F4021436A4AC03D8A64BF419B2E2B813B51D8DD961C7CBCED67CD778FAB052A50393
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
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 :
1
# of downloads :
370
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70
Verdict:
No threats detected
Analysis date:
2025-06-06 13:27:21 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/f75c929e-9a35-49c9-a02b-7ef314fba01a

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/7687/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6842ea4307b5e8c1cfe51c7a
Tags:
micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b0e57603-3125-469d-a207-75073f83d7ed
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1708168
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Uses threadpools to delay analysis
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1708168 Sample: mykBFJHh5E.exe Startdate: 06/06/2025 Architecture: WINDOWS Score: 100 32 www.204.ceo 2->32 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected PureLog Stealer 2->38 40 Yara detected FormBook 2->40 42 5 other signatures 2->42 11 mykBFJHh5E.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\mykBFJHh5E.exe.log, ASCII 11->30 dropped 52 Injects a PE file into a foreign processes 11->52 54 Uses threadpools to delay analysis 11->54 15 mykBFJHh5E.exe 11->15         started        signatures6 process7 signatures8 56 Maps a DLL or memory area into another process 15->56 18 p1zVclqKCo.exe 15->18 injected process9 dnsIp10 34 www.204.ceo 103.143.29.153, 49722, 80 I-SMART-AS-APiSmartBD Hong Kong 18->34 21 ipconfig.exe 13 18->21         started        process11 signatures12 44 Tries to steal Mail credentials (via file / registry access) 21->44 46 Tries to harvest and steal browser information (history, passwords, etc) 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 2 other signatures 21->50 24 chrome.exe 21->24         started        26 firefox.exe 21->26         started        process13 process14 28 WerFault.exe 4 24->28         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70/
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Create hunting rule
Status:
Malicious
First seen:
2025-05-19 13:33:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3vmkbi6kf22c5rit7ypdgl5du5lqhq2k5mb4sf3lqr6uno2qzjya._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
8fb81d1cd3412c19f02fd834de979e6651cdc5a281a99230b0f41c9d3c2848ba
Formbook
ca58ead25fcf95690d903e455bf82ea743c5b899204f4c8b96b9837b62557e6f
Formbook
dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70
Formbook
e9e776bc8441653174e4119f35f5f1a2a868a18609840c057c885fc339af6317
Formbook
ec018c564b8e7cdf15fe86dd50da2a8bd0ff20ca78948e89a31220eb8312f4a9
Formbook
error
Formbook
f928859c0f4fbad94986b1b6037b00bd2db31d9432e4ad8500cbfdbe26dc48ba
Formbook
+ 3'823 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250606-qgwpvsywfx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b06aabb4-0abe-40e9-b509-420c194e2739
Unpacked files
SH256 hash:
dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70
MD5 hash:
8f5553ae87e75bceaefd4619b9161424
SHA1 hash:
f646af3704cda24ed68645b12972c57fcd938c8a
Link:
https://www.unpac.me/results/e0480d2e-ef22-4353-8c4d-07445be18185/
SH256 hash:
eff194cda44758e15b49cddc0d84a54a71c2d734a45533ad80fd74fd0b0f9967
MD5 hash:
9ad074726273ebcce86b933a62572057
SHA1 hash:
0b40082d0490d15c3cfc9d26999a2f5b8f4b4587
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/e0480d2e-ef22-4353-8c4d-07445be18185/
SH256 hash:
cc20d9969510195970a717f0ad43fe36afbba339e916e3d5946e2894d6924be7
MD5 hash:
6217d01f84e3d1414eea7d4a877fdaa3
SHA1 hash:
18e2a7f7e7415459e33e2da30cdef3e9cfc47eaa
Link:
https://www.unpac.me/results/e0480d2e-ef22-4353-8c4d-07445be18185/
SH256 hash:
9dbdcde699370e61a390906b42f8243f7f753205683e1adc7d05bb97264fb2f8
MD5 hash:
a41303643c74a1bc5bb4ac1cbe92f090
SHA1 hash:
81945f1e03c10d2dbf06202c1a1f482f246e551c
Link:
https://www.unpac.me/results/e0480d2e-ef22-4353-8c4d-07445be18185/
SH256 hash:
b1b00c597c07b4bddcbd4f25203a05b3ea839f7415b1a2b651740c8cca22e91f
MD5 hash:
53a724dfd87c7f18f92375f58bad976a
SHA1 hash:
cb3dc92ed6612c165cef06352a02793dbf310d37
Link:
https://www.unpac.me/results/e0480d2e-ef22-4353-8c4d-07445be18185/
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/dd58a0a3ca2eb42ec513fe1e332fa3a75703c34aeb03c9176b847d46bb50ca70

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/7687/

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 (HIGH_ENTROPY_VA)high

Comments