MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e. 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


MarsStealer


Vendor detections: 17


Intelligence 17 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e
SHA3-384 hash: b60506653f7d8dd18fb11f870fce8e33104de5e1dca83f4abe4b809454e95b8b79c299918c3110d7c58ca94f8efebcf7
SHA1 hash: 4a32f93ee78ff22346fd7b10a17ba50320282180
MD5 hash: 36ea75b21cfb54d45e752c4f634ef88f
humanhash: seven-florida-sierra-cardinal
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:2'645'576 bytes
First seen:2024-08-18 11:22:27 UTC
Last seen:2024-08-19 15:30:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:iPgNKWvwDkmPmD5RNoRzln70KPA11ByjJF8akBDR6P+pb6Nuv:rNhstln7bPZ9VkZEPib6NA
Threatray 1 similar samples on MalwareBazaar
TLSH T14FC5CF1A3504CE11C01D177BCCEAC4B453B9AF91EBD3E66B7969B75D25263BA0B0E08C
TrID 53.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.9% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.7% (.EXE) Win64 Executable (generic) (10523/12/4)
4.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 7151715115317549 (1 x MarsStealer, 1 x PrivateLoader)
Reporter Bitsight
Tags:exe MarsStealer


Avatar
Bitsight
url: http://147.45.44.104/lopsa/66bf1a73a318a_otraba.exe#kisotr

Intelligence

File Origin
# of uploads :
2
# of downloads :
360
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://bazaar.abuse.ch/sample/12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e/
Verdict:
Malicious activity
Analysis date:
2024-08-18 11:25:52 UTC
Tags:
stealer stealc loader
Link:
https://app.any.run/tasks/1553c3ae-4923-4575-afa0-4950e6e14b27

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Malwarex-10033462-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c1d99baa5b40be0aa06bff
Tags:
Encryption Execution Infostealer Network Static Stealth Trojan Variant
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
net_reactor obfuscated overlay packed packed stealc vbnet
Link:
https://www.filescan.io/uploads/66c1d9983930e113b90d0e22/reports/c943a4eb-5b29-49c0-ae99-e2e10c683121/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e
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:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b464232d-decc-4674-be37-ac0b3b3ca506
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1494418
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Searches for specific processes (likely to inject)
Sigma detected: Silenttrinity Stager Msbuild Activity
Suricata IDS alerts for network traffic
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1494418 Sample: file.exe Startdate: 18/08/2024 Architecture: WINDOWS Score: 100 32 fp2e7a.wpc.phicdn.net 2->32 34 fp2e7a.wpc.2be4.phicdn.net 2->34 36 3 other IPs or domains 2->36 42 Suricata IDS alerts for network traffic 2->42 44 Found malware configuration 2->44 46 Antivirus detection for URL or domain 2->46 48 11 other signatures 2->48 9 file.exe 3 2->9         started        signatures3 process4 file5 22 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 9->22 dropped 50 Found many strings related to Crypto-Wallets (likely being stolen) 9->50 52 Writes to foreign memory regions 9->52 54 Allocates memory in foreign processes 9->54 56 Injects a PE file into a foreign processes 9->56 13 MSBuild.exe 36 9->13         started        signatures6 process7 dnsIp8 38 193.176.190.41, 49715, 56617, 80 AGROSVITUA unknown 13->38 40 aldiablo.cl 186.64.114.115, 443, 49716 ZAMLTDACL Chile 13->40 24 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 13->24 dropped 26 C:\Users\user\AppData\...\softokn3[1].dll, PE32 13->26 dropped 28 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 13->28 dropped 30 9 other files (none is malicious) 13->30 dropped 58 Found many strings related to Crypto-Wallets (likely being stolen) 13->58 60 Tries to harvest and steal ftp login credentials 13->60 62 Tries to harvest and steal browser information (history, passwords, etc) 13->62 64 4 other signatures 13->64 18 cmd.exe 2 13->18         started        file9 signatures10 process11 process12 20 conhost.exe 18->20         started       
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-08-16 13:15:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ck5exjosq5y2b767zchzkqtrroowpsw573w3ndo2yzui5dhp25xa._file
Verdict:
malicious
Similar samples:
12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e
MarsStealer
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:default credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240818-ng5xesvank/
Behaviour
Checks processor information in registry
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Executes dropped EXE
Loads dropped DLL
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Stealc
Malware Config
C2 Extraction:
http://193.176.190.41
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/28332f8d-6bae-459e-a4a8-b4b33c7ae087
Unpacked files
SH256 hash:
86e9d60c29c635146be5eeb4d2df981010bb60d586cf553a75419772bbc0b302
MD5 hash:
6c2bc5b8b43a3118520f0951e4a5b2de
SHA1 hash:
cff937c3d22b83804890ca0584645ea2abaf224d
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/6de4fe9e-c24d-4a85-8a87-47c4b471e5ea/
Parent samples :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 hash:
a14410cb465d9dde259112cd282816dfac355b404216c530c4c7c6783bc98942
MD5 hash:
cc98a0eb9859de2336c21abbbae78cd6
SHA1 hash:
7d5ce61a797743bdeafa10f7150505c312567469
Link:
https://www.unpac.me/results/6de4fe9e-c24d-4a85-8a87-47c4b471e5ea/
SH256 hash:
aa3e729e2ddc2d7e808e3138babe957158faf90ab2cdb500faa6125be71feda8
MD5 hash:
38f54005dcc4bc3b1513d0cffb2bd4f8
SHA1 hash:
2db1d40f2da4c3b7328b95537ddf1b93af2243a6
Link:
https://www.unpac.me/results/6de4fe9e-c24d-4a85-8a87-47c4b471e5ea/
SH256 hash:
c51d851e9737fe32fa95047afcfb030a6c006865536bd4894d5ea5d3b0aadbb8
MD5 hash:
b54977dc8d3e5df6dba2211efe221296
SHA1 hash:
1ecccf5e70971d7e26952e8a1f0d0483518f40ad
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/6de4fe9e-c24d-4a85-8a87-47c4b471e5ea/
Parent samples :
12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e
21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add
b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa
dbf55dd5c00f37ec49e1b661228adcc0a286b3eabb35d2f85fc34d82076107f6
c7a39c464c5d25f0aa5cf1281d476269397122ee1fdf44ca7d3283080aa69ab3
SH256 hash:
12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e
MD5 hash:
36ea75b21cfb54d45e752c4f634ef88f
SHA1 hash:
4a32f93ee78ff22346fd7b10a17ba50320282180
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/6de4fe9e-c24d-4a85-8a87-47c4b471e5ea/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/12ba4ba5d287/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mars Stealer
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e

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:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
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:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
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.

Web download

MarsStealer

Executable exe 12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3114112/

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