MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4. 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: 17


Intelligence 17 IOCs YARA 8 File information Comments
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SHA256 hash: 8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4
SHA3-384 hash: dbed66a68960e47c011ddddb38625e074603b840414ad6da9f2394656e46afd4666262e503b36561ac83cbf07238d076
SHA1 hash: d8a050750f7fdc5038d4164c8f7d247d2cecf7a9
MD5 hash: 461a238903404999e36835284a2eaaf7
humanhash: magnesium-montana-crazy-johnny
File name:8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4
Download: download sample
Signature Formbook
Create hunting rule
File size:666'632 bytes
First seen:2024-06-03 12:31:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:eiETpbqSE35/ohUxyWC5c5+C4PE4Y5tq1czVGZaIrKiHbts3/1MkR:WbqSE3JYwkm5+CmEjGlNrKc5M/F
TLSH T1B4E4231277F96B63D5F69BB615604040AB713BBB2A3CC60D2D56A0CF1E71BC00295FAB
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
329
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4.exe
Verdict:
Malicious activity
Analysis date:
2024-06-03 13:06:07 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/153a6b42-ff63-4376-ade3-0e3d43f5cec0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilheracles-10020638-0
Create hunting rule

Win.Packed.Agensla-10021078-0
Create hunting rule

Win.Dropper.Nanocore-10024150-0
Create hunting rule

Win.Packed.LokiBot-10026312-0
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Win.Packed.LokiBot-10027126-0
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Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665df6f9ab69e84d6a2f42abwin7simulatehigh_evasion
Tags:
Encryption Generic Static Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook infostealer overlay packed
Link:
https://www.filescan.io/uploads/665db7ca0bf5978c0b0bb39a/reports/c64de503-cf45-47eb-9219-5b91e2c22f68/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/556c6925-e5da-426e-abea-8a2c6971b04a
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1451032
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
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 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
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1451032 Sample: ROVM7fV8KR.exe Startdate: 03/06/2024 Architecture: WINDOWS Score: 100 31 www.theburnscleanteam.com 2->31 33 www.sothana.top 2->33 35 15 other IPs or domains 2->35 37 Snort IDS alert for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 10 other signatures 2->43 11 ROVM7fV8KR.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 ROVM7fV8KR.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 82 1 14->17 injected process8 dnsIp9 27 ext-sq.squarespace.com 198.185.159.144, 61963, 80 SQUARESPACEUS United States 17->27 29 googleyou.qqdns.shop 34.96.176.101, 61962, 80 GOOGLEUS United States 17->29 20 WWAHost.exe 17->20         started        process10 signatures11 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-05-08 13:22:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rnjxnpnh3k6vgvpbp3jnfgtwwrtpkglyigrvk2bhnscd4mzigw2a._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:cn26 rat spyware stealer trojan
Link:
https://tria.ge/reports/240603-pqlqksfg79/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4d00cd67-2cfb-4d2d-bbd6-aeb9895717df
Unpacked files
SH256 hash:
1ae39311951e0bda88959ac6a2418ec6c6b86c07db3459a03562fb325cf7511f
MD5 hash:
39dadaa6ae7d97c25b8377e9d2d01857
SHA1 hash:
8a13fcb53c154d8f819546ef9cffe5ae3453d188
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/8ebcd540-c8b3-4865-8afc-e8765707f7e2/
Parent samples :
86104345f9894e11d5eff087eb4d18c29a4cbe90aa5d8f2d9462983010c5050a
59fe7f5e271c05fc8db382a3cbd11834eaf4ddcdf9c16349f18db11df84d59d5
8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4
f3b25ff7dc9cfcab029413dbaab77efdb5017d72ff5c0cc4d88769de1def78a6
SH256 hash:
fa5db9c305ae1888b99c66d6eacbd6345a387dffd01178d2b280fe8eddbeae39
MD5 hash:
eac3847c3d64738a935db8e0c7bb5e0b
SHA1 hash:
f6f4f961273ed6a894363901a974c364b5ed6ecb
Link:
https://www.unpac.me/results/8ebcd540-c8b3-4865-8afc-e8765707f7e2/
SH256 hash:
153d921fffd04de195ac5a80ce0cc481acca866e50bc2f2a20f880b33987bda7
MD5 hash:
75fb462d95e2b5283a9a8aff9d26984a
SHA1 hash:
205432d8c14269d8044bbeb726ac5f76576fd6eb
Link:
https://www.unpac.me/results/8ebcd540-c8b3-4865-8afc-e8765707f7e2/
SH256 hash:
b61b329b3b25811b2848bf1bdce8a1ade665d37f651fbd5ba81db24645e40ffa
MD5 hash:
8b623647bfa41d6abdb48b28ef4d2a26
SHA1 hash:
1f0a34efe7de31997e5b624684fa895fb8bea41d
Link:
https://www.unpac.me/results/8ebcd540-c8b3-4865-8afc-e8765707f7e2/
SH256 hash:
8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4
MD5 hash:
461a238903404999e36835284a2eaaf7
SHA1 hash:
d8a050750f7fdc5038d4164c8f7d247d2cecf7a9
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/8ebcd540-c8b3-4865-8afc-e8765707f7e2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8b5376bda7dabd5355e17ed2d29a76b466f5197841a35568276c843e332835b4

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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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