MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f. 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 4 File information Comments
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SHA256 hash: 8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f
SHA3-384 hash: a0a8df294c0951c77630f65026289f62eb9b66b4aa0507a7b56d26c404fea30f975b5356a6dbacc205115fd9a2b98312
SHA1 hash: c7de7504f9930b79f343c3a4dd89ca78ed9dc59e
MD5 hash: 3e04e26d5c74db5d85cda99b11aac28b
humanhash: bulldog-purple-idaho-vermont
File name:aAEsSBx24sxHhRz.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:713'728 bytes
First seen:2024-07-03 06:09:57 UTC
Last seen:2024-07-03 06:35:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:Kuo6JNf+wnzTiPmj68y0+6bUGUm5OiwM6kLY2oa0WwgOPfz5OVVBHGDS6:jJ9TDj68yj6bYRwtY2oa0YOnlOtm1
Threatray 1'429 similar samples on MalwareBazaar
TLSH T1F1E402742298DE39E1AE077EE1E5015553F4E0163583FB0E4ED460C90DB3BE5CA3A69B
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 00d4c8ae9ad4c400 (10 x Formbook, 9 x AgentTesla, 2 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
379
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f.exe
Verdict:
No threats detected
Analysis date:
2024-07-03 06:40:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cb9d8937-3e10-4f70-a4af-2987d398cf2a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.18844.25419.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6684eba5655cbfe6fd97f4acwin10vpnfull_triage
Tags:
Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Creating a window
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6684eb3eef9fdf64aa71cd44/reports/9d20ef0e-42db-4f10-9b4a-69ca78abb01a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/993e76cb-4b11-45bc-a7e6-dc4acd17aad9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1466634
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found 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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1466634 Sample: aAEsSBx24sxHhRz.exe Startdate: 03/07/2024 Architecture: WINDOWS Score: 100 31 www.cfuhtkwo.xyz 2->31 33 www.thecrystore.com 2->33 35 16 other IPs or domains 2->35 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 51 9 other signatures 2->51 11 aAEsSBx24sxHhRz.exe 3 2->11         started        signatures3 49 Performs DNS queries to domains with low reputation 31->49 process4 file5 29 C:\Users\user\...\aAEsSBx24sxHhRz.exe.log, ASCII 11->29 dropped 63 Tries to detect virtualization through RDTSC time measurements 11->63 65 Injects a PE file into a foreign processes 11->65 67 Switches to a custom stack to bypass stack traces 11->67 15 aAEsSBx24sxHhRz.exe 11->15         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 2 other signatures 15->75 18 explorer.exe 91 1 15->18 injected process9 dnsIp10 37 021562413z.greycdn.net 128.1.131.130, 49721, 80 UHGL-AS-APUCloudHKHoldingsGroupLimitedHK United States 18->37 39 www.cpuk-finance.com 185.151.30.212, 49716, 80 TWENTYIGB United Kingdom 18->39 41 5 other IPs or domains 18->41 53 System process connects to network (likely due to code injection or exploit) 18->53 22 wlanext.exe 18->22         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 61 Switches to a custom stack to bypass stack traces 22->61 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-07-03 05:46:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qie2n6bihie5klavnandkbd5wonuthiid6giimizeuvuy4uwdrhq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5fe6c1b9d059a989012a070bb99d17899afaeb8f0fbd9141aeef5edce413b7c2
Formbook
780c4d3a33c89cd911190c17d7ba3ad69e5ddc66396762e4bef8ff67bd45b7b5
Formbook
8d39599a31cac2a8cf51d0b0d6dfd6dbafa76dd1cd33d70d0ce6a8235c662a5d
Formbook
a5a3067e6a3c4e957152655df5c68ce4db77f8308feff43c53e7535031033be5
Formbook
c9abcfad837a889855fac86bb376f11a0383d2cd956c13b41546e62dd55fa199
Formbook
e004e6798d1e44ac7f24a273eeb129c8dfe9e4522baeda0e6756ec5319b90af1
Formbook
+ 1'419 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dy13 rat spyware stealer trojan
Link:
https://tria.ge/reports/240703-gw2pzs1arb/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3671abf9-5fd9-46d4-a32b-b33548ab6e2f
Unpacked files
SH256 hash:
cab4d725121ede8a40aac7d8a75e868f2a3fee4bca06960c2ef0794d97782317
MD5 hash:
2eeb33931c6debef2a6171982e3c8cef
SHA1 hash:
0f34ac4a440dd27aec13deffa213d805629fa176
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/6a65ce7d-129f-49c0-81f7-a19bcf095ec3/
Parent samples :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 hash:
781f3f0a6992d6e673636f85aabd223afc45e97c29ee9ffbc872ddb23f6840a9
MD5 hash:
80e8b1e217fbb602fdacd617e1cc4962
SHA1 hash:
847a4b4a9facd4ac05382b2029d7d10abb37c456
Link:
https://www.unpac.me/results/6a65ce7d-129f-49c0-81f7-a19bcf095ec3/
SH256 hash:
8202cb35fda1b696dae87bb32783736cc4be66a081c3e67567103037b784fd42
MD5 hash:
448e3ecc8349eecac9a881597c3d57b7
SHA1 hash:
39090dec205294d185684d302721cc44ed03f56b
Link:
https://www.unpac.me/results/6a65ce7d-129f-49c0-81f7-a19bcf095ec3/
Parent samples :
e861afaa4755a6f42c02be20ea94ea195e45b8a952928a76692bc146decb78fe
a6c97c54c4bebd6114ddcfac0414fb0d432877d2916012c8a5fc2cfb45d9346d
0903961ba7ce91a965ee42d92da305ecf174b588351dbac5bd7f53506cc5a0f3
1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12
3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d
SH256 hash:
541948cbd3ec9ff7f6a30c4d5c8e5a81b31a29683f9848e02f34ff332b866d10
MD5 hash:
a09f2dfa960964570a7f6ebc52c8e261
SHA1 hash:
26d81dfb405d717b57c88dc8bc6d4f68c4d63b5d
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/6a65ce7d-129f-49c0-81f7-a19bcf095ec3/
Parent samples :
5fe6c1b9d059a989012a070bb99d17899afaeb8f0fbd9141aeef5edce413b7c2
8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f
SH256 hash:
8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f
MD5 hash:
3e04e26d5c74db5d85cda99b11aac28b
SHA1 hash:
c7de7504f9930b79f343c3a4dd89ca78ed9dc59e
Link:
https://www.unpac.me/results/6a65ce7d-129f-49c0-81f7-a19bcf095ec3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/8209a6f8283a09d52c15681a35047db39b499d081f8c843119252b4c72961c4f

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.

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

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