MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5. 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: 19


Intelligence 19 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5
SHA3-384 hash: 2531039f3815ab025573bf14b40cb1281584df023944d7ce48c11e5552f20a342611ab01f8c53d7f679bdf538e472c45
SHA1 hash: c591ab0d820e399db7697649db8f2d0f497f9575
MD5 hash: f7ed5f4e72fc1ec49d6d4bab15e6259c
humanhash: asparagus-louisiana-five-speaker
File name:SETUP 726.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'219'072 bytes
First seen:2025-08-27 07:37:05 UTC
Last seen:2025-08-27 07:37:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (301 x Formbook, 52 x AgentTesla, 35 x SnakeKeylogger)
ssdeep 24576:p5EmXFtKaL4/oFe5T9yyXYfP1ijXdavUnHo74BK2PNVGLc:pPVt/LZeJbInQRavCO4B1a
Threatray 666 similar samples on MalwareBazaar
TLSH T15045BF0273D1C062FFAB92734B56F6115BBC79260123AA2F13981979FE705B1463E7A3
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
74
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SETUP 726.exe
Verdict:
No threats detected
Analysis date:
2025-08-27 07:39:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7002fcf7-993e-472b-8e67-4bbd71defe9c

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/23791/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68aeb5cd3e988eb6ab82c9ce
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger microsoft_visual_cc obfuscated packed packed packer_detected threat
Link:
https://www.filescan.io/uploads/68aeb5d08d7e2387618396f8/reports/4581108e-3ad9-46fe-97af-6f2c78d3b18a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-26T09:13:00Z UTC
Last seen:
2025-08-26T09:13:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9e881dec-c6a8-496d-96d5-5dc3fb5350dd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1765972
Signature
Binary is likely a compiled AutoIt script file
Found API chain indicative of sandbox detection
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1765972 Sample: SETUP 726.exe Startdate: 27/08/2025 Architecture: WINDOWS Score: 100 26 www.joyesi.xyz 2->26 28 www.shenzhoucui.com 2->28 30 17 other IPs or domains 2->30 46 Suricata IDS alerts for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 54 4 other signatures 2->54 10 SETUP 726.exe 4 2->10         started        signatures3 52 Performs DNS queries to domains with low reputation 26->52 process4 signatures5 56 Binary is likely a compiled AutoIt script file 10->56 58 Writes to foreign memory regions 10->58 60 Maps a DLL or memory area into another process 10->60 13 svchost.exe 10->13         started        process6 signatures7 62 Maps a DLL or memory area into another process 13->62 16 9gkm0hzVjmwrYVlqWQAu1.exe 13->16 injected process8 process9 18 netbtugc.exe 13 16->18         started        signatures10 38 Tries to steal Mail credentials (via file / registry access) 18->38 40 Tries to harvest and steal browser information (history, passwords, etc) 18->40 42 Modifies the context of a thread in another process (thread injection) 18->42 44 3 other signatures 18->44 21 2haTv1z7Ne.exe 18->21 injected 24 firefox.exe 18->24         started        process11 dnsIp12 32 www.elettrosistemista.zip 15.197.172.60, 49740, 49741, 49742 TANDEMUS United States 21->32 34 www.goldenjade-travel.com 116.50.37.244, 49723, 49724, 49725 DONGFONG-TWDongFongTechnologyCoLtdTW Taiwan; Republic of China (ROC) 21->34 36 4 other IPs or domains 21->36
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/f7ed5f4e72fc1ec49d6d4bab15e6259c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-26 16:54:29 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xe4tepxyqhqb4coxgzxwvoefvv75prl3jklgl2duxpu4ykxagtcq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0390870c49dd62504fc10df0c2d3e6b17d0ca6a6bce1c450d40d923ed19cca13
Formbook
0ec78936cfd600f8f7b64b4d58bf9ea1fb2586c96e0e2fefa938c758712b24d1
Formbook
0faf94a24b00a7dca3cb0e26b29b0c3f72f66e2f968d997ad45e74620efeb11b
Formbook
1545d84afd2ce44a36cbbe4ba0f152243250aa01a5e3abed0264a3d81aa1ecdb
Formbook
1671e2668783d7c256806afc89fe60355c915cc163d7e8a31272636bd16cc34c
Formbook
7a0bd1cc99236bcab7acb21efb90fcdf612cc14e51d837d9e773f63ebc37c8de
Formbook
b3519529f6d34d7fa3108901fe68b12f4577de4e610433e1ae733666fd8f1126
Formbook
dd45842d2a7857d5cc5250fe23538be3cc88a33fff794156c3468ac3c8030ee9
Formbook
f605d6db615c055fc80141bf79ab3f541303cf082244b352352bbd982a7aca50
Formbook
+ 656 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250827-jf7meaxnz2/
Behaviour
Modifies Internet Explorer settings
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
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/230ce256-b3b3-4e49-85fc-08b44d459951
Unpacked files
SH256 hash:
b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5
MD5 hash:
f7ed5f4e72fc1ec49d6d4bab15e6259c
SHA1 hash:
c591ab0d820e399db7697649db8f2d0f497f9575
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
SH256 hash:
9c629f7c21331ac6c12d806c937e2070d4b31b362de30b3d0b24277b9645059b
MD5 hash:
f472539a91b9fed3440ee794f05b6755
SHA1 hash:
03bce7fb7f4bb27e577f171605a5b047a8d5d5ae
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
SH256 hash:
2fb392943d1b258be038a003eccc692e336de2c1fca1971ed2c53c86fb238975
MD5 hash:
17cfec5d00fc5d4f37f797d558de8500
SHA1 hash:
261053ab3df6d8231384ad49ab41ec1dd6e60c89
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
SH256 hash:
7d8734d40866a952f6fdaaf88efb50d5c40790910f41e5385e6c9480e235ff15
MD5 hash:
85c7003af6732f8e73436d195ae640a8
SHA1 hash:
57181a24afd4fa0b8b4d425b35bb443d1b573053
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
SH256 hash:
19fe0f35cde8dacf22daaa8b144aef7c31fabda29e9994dd000b23f5a2ba6ad7
MD5 hash:
74dfa0627eb78188a0e0237976c7d2c1
SHA1 hash:
654a07f21d83241b95b3ab71744508a1574b6b3d
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
SH256 hash:
95381db7c13a065c7e7d41667d9df344a3e0b0fdeb40d1d56c60eaab675cf2b1
MD5 hash:
cb05c6f33dd47fd113caa747f8036522
SHA1 hash:
caca9c8b4588238dc1d209b4b8e7e179b1b92dc3
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
SH256 hash:
8e4dfdec8a2bdb0cfa7710b57b2d2ef2072d28178316bf81c46497ed9477d3c1
MD5 hash:
dff107fb1c534b6ed7a4f7843c7d4e58
SHA1 hash:
dde82c096d52048582cfa392b3bce9957bac5f91
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
SH256 hash:
95d4e6d867da09d9fb2302ef94d540644204068b149018da9258cc36397ffbd2
MD5 hash:
136616fdb1e67935a6142086452e8eef
SHA1 hash:
c14840db3410d29d1a16822b917dacf1860b98eb
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
SH256 hash:
9f9fd098bd246d7e73797ad12796d2cac30b6d0f94a6258cb3457a68a76972e2
MD5 hash:
66fffd581133e3c2f5845adc8e0d7917
SHA1 hash:
77f08c24daf55ca331687a44bb4dfe55cde849e1
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/23bab357-64df-4d68-92c7-01c984374523/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b939323ef881/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/b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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)
Rule name:Windows_Generic_Threat_aeaeb5cf
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

zip c6a6b40803aa876987f6e4e950bc12b7a1b57c97c664f8827744db7a719292b6

Formbook

Executable exe b939323ef881e01e09d7366f6ab885ad7fd7c57b4a9665e874bbe9cc2ae034c5

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 c6a6b40803aa876987f6e4e950bc12b7a1b57c97c664f8827744db7a719292b6
Cape
Cape
https://www.capesandbox.com/analysis/23791/
  
Dropped by
MD5 6ff9750125a368f78287af3bf3d4c1f3

Comments