MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27055280296d10b811b4d76456dbc5d29aac8b4fc33708fa47b36334e1d85700. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27055280296d10b811b4d76456dbc5d29aac8b4fc33708fa47b36334e1d85700
SHA3-384 hash: d3ab0c520afc8e645d6fcf02e9ad2fe00c5f4b2f366d63ade955f65d1bff4d81707890e03f5711d146f15533bd41be5c
SHA1 hash: 2bff6fd096b95b1591259d223f7a0ced2bb1c79f
MD5 hash: adcbb5fa5706fb287f01370eb99e0d10
humanhash: burger-mirror-white-sodium
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:334'376 bytes
First seen:2024-09-28 13:28:11 UTC
Last seen:2024-09-28 23:07:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:Ns/IeaQRgAaVIEs1gsHKyDbrXtkD+yEl9WsAwT92ORxEO:qweRd11d5frdhyEl9WiT93EO
TLSH T15D64237E074826BAEDDB0E35CCA313046BF8F712E5A998D23540DA4F49AB3549F78136
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter Bitsight
Tags:exe MarsStealer


Avatar
Bitsight
url: http://147.45.44.104/ldms/sdgs.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
416
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-28 13:31:03 UTC
Tags:
stealer stealc loader
Link:
https://app.any.run/tasks/2de3bb98-9e7e-4097-a96b-70a907215d67

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilzilla-10036350-0
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66f805634b14762f62128422
Tags:
Encryption Static Micro Tori Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Connection attempt to an infection source
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/66f8049eb240a2b637c8886b/reports/a1a8cb70-05cc-4984-8458-e4169693c731/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/27055280296d10b811b4d76456dbc5d29aac8b4fc33708fa47b36334e1d85700
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:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bbc016c1-f22a-494a-b391-85f057962ff4
Result
Threat name:
LummaC, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1521478
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
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
LummaC encrypted strings found
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1521478 Sample: file.exe Startdate: 28/09/2024 Architecture: WINDOWS Score: 100 104 t.me 2->104 106 fragnantbui.shop 2->106 108 3 other IPs or domains 2->108 128 Suricata IDS alerts for network traffic 2->128 130 Found malware configuration 2->130 132 Multi AV Scanner detection for dropped file 2->132 134 16 other signatures 2->134 13 file.exe 2 2->13         started        signatures3 process4 file5 98 C:\Users\user\AppData\Local\...\file.exe.log, CSV 13->98 dropped 166 Contains functionality to inject code into remote processes 13->166 168 Writes to foreign memory regions 13->168 170 Allocates memory in foreign processes 13->170 172 Injects a PE file into a foreign processes 13->172 17 RegAsm.exe 39 13->17         started        22 conhost.exe 13->22         started        signatures6 process7 dnsIp8 100 46.8.231.109, 49713, 80 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 17->100 102 147.45.44.104, 49716, 63244, 80 FREE-NET-ASFREEnetEU Russian Federation 17->102 78 C:\Users\user\AppData\...\vfdafgh[1].exe, PE32 17->78 dropped 80 C:\Users\user\AppData\...\softokn3[1].dll, PE32 17->80 dropped 82 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 17->82 dropped 84 13 other files (9 malicious) 17->84 dropped 136 Tries to steal Mail credentials (via file / registry access) 17->136 138 Tries to harvest and steal browser information (history, passwords, etc) 17->138 140 Found evasive API chain (may stop execution after checking locale) 17->140 142 3 other signatures 17->142 24 cmd.exe 1 17->24         started        26 cmd.exe 1 17->26         started        file9 signatures10 process11 process12 28 userKJJJJDHIDB.exe 2 24->28         started        31 conhost.exe 24->31         started        33 userJJJEBGDAFH.exe 2 26->33         started        35 conhost.exe 26->35         started        signatures13 152 Multi AV Scanner detection for dropped file 28->152 154 Machine Learning detection for dropped file 28->154 156 Writes to foreign memory regions 28->156 37 RegAsm.exe 1 155 28->37         started        42 conhost.exe 28->42         started        44 RegAsm.exe 28->44         started        158 Allocates memory in foreign processes 33->158 160 Injects a PE file into a foreign processes 33->160 162 LummaC encrypted strings found 33->162 46 RegAsm.exe 33->46         started        48 conhost.exe 33->48         started        process14 dnsIp15 110 t.me 149.154.167.99, 443, 63220, 63254 TELEGRAMRU United Kingdom 37->110 112 cowod.hopto.org 45.132.206.251, 63252, 80 LIFELINK-ASRU Russian Federation 37->112 114 bloodqwe.shop 172.67.167.90, 443, 63221, 63222 CLOUDFLARENETUS United States 37->114 86 C:\Users\user\AppData\...\freebl3[1].dll, PE32 37->86 dropped 88 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 37->88 dropped 90 C:\Users\user\AppData\...\mozglue[1].dll, PE32 37->90 dropped 92 5 other files (4 malicious) 37->92 dropped 144 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 37->144 146 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 37->146 148 Tries to harvest and steal ftp login credentials 37->148 150 3 other signatures 37->150 50 CAAKFIIDGI.exe 37->50         started        53 HIEHDHCFIJ.exe 37->53         started        55 cmd.exe 37->55         started        116 fragnantbui.shop 188.114.97.3, 443, 49718, 49720 CLOUDFLARENETUS European Union 46->116 57 WerFault.exe 46->57         started        file16 signatures17 process18 file19 118 Multi AV Scanner detection for dropped file 50->118 120 Machine Learning detection for dropped file 50->120 122 Writes to foreign memory regions 50->122 60 RegAsm.exe 50->60         started        63 conhost.exe 50->63         started        124 Allocates memory in foreign processes 53->124 126 Injects a PE file into a foreign processes 53->126 65 RegAsm.exe 53->65         started        67 conhost.exe 53->67         started        69 RegAsm.exe 53->69         started        71 conhost.exe 55->71         started        73 timeout.exe 55->73         started        94 C:\ProgramData\Microsoft\...\Report.wer, Unicode 57->94 dropped signatures20 process21 signatures22 164 Tries to harvest and steal browser information (history, passwords, etc) 60->164 75 WerFault.exe 65->75         started        process23 file24 96 C:\ProgramData\Microsoft\...\Report.wer, data 75->96 dropped
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/27055280296d10b811b4d76456dbc5d29aac8b4fc33708fa47b36334e1d85700
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/27055280296d10b811b4d76456dbc5d29aac8b4fc33708fa47b36334e1d85700/
Threat name:
Win32.Spyware.Marsstealer
Create hunting rule
Status:
Malicious
First seen:
2024-09-28 13:29:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e4cvfabjnuilqenu25sfnw6f2knkzc2pym3qr6shwnrtjyoyk4aa._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:lumma family:stealc family:vidar botnet:c8450254a9a0920212cb81ae7f386da3 botnet:default credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240928-qq8e1s1blg/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Unsecured Credentials: Credentials In Files
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Detect Vidar Stealer
Lumma Stealer, LummaC
Stealc
Vidar
Malware Config
C2 Extraction:
http://46.8.231.109
https://t.me/jamsemlg
https://steamcommunity.com/profiles/76561199780418869
https://t.me/ae5ed
https://reinforcenh.shop/api
https://stogeneratmns.shop/api
https://fragnantbui.shop/api
https://drawzhotdog.shop/api
https://vozmeatillu.shop/api
https://offensivedzvju.shop/api
https://ghostreedmnu.shop/api
https://gutterydhowi.shop/api
Verdict:
Malicious
Tags:
stealc
YARA:
n/a
Link:
https://app.threat.zone/submission/53e3bfd5-1bde-4bcd-b89b-933cacdf6fb2
Unpacked files
SH256 hash:
951b300428f46c2a12417414eb10796307cbe9016bbd22193e3250f77bb8190c
MD5 hash:
733e54187892b23b2b7653e79925a2f0
SHA1 hash:
bcd5bfca9eb9fc9bdced6a3a43a96baf598fcd80
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/fe28461e-caf8-4747-a434-44a6ae942336/
Parent samples :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 hash:
3986363fb8deb6927a153051c4d412001481d4cb60a113261c0e0402238bfef9
MD5 hash:
f5aa858b2cbbb784ca62b8891c9f557e
SHA1 hash:
f45f07667a035a43b06a5f43755e249a67a01f67
Link:
https://www.unpac.me/results/fe28461e-caf8-4747-a434-44a6ae942336/
SH256 hash:
27055280296d10b811b4d76456dbc5d29aac8b4fc33708fa47b36334e1d85700
MD5 hash:
adcbb5fa5706fb287f01370eb99e0d10
SHA1 hash:
2bff6fd096b95b1591259d223f7a0ced2bb1c79f
Link:
https://www.unpac.me/results/fe28461e-caf8-4747-a434-44a6ae942336/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/27055280296d/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/27055280296d10b811b4d76456dbc5d29aac8b4fc33708fa47b36334e1d85700

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_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.

Web download

MarsStealer

Executable exe 27055280296d10b811b4d76456dbc5d29aac8b4fc33708fa47b36334e1d85700

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3195701/

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 (GUARD_CF)high

Comments