MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71
SHA3-384 hash: d2e8cb17ad9ae29eac18f5fa6fce8bd34126bb99b9962598e79ed59bfe335cdd3250d44367af7175b7ed69d064711beb
SHA1 hash: 0979ff2723370bbd48ea50d59413a1741e4edd01
MD5 hash: a991933b29e1203af5c3df1d62d0b247
humanhash: king-south-zulu-autumn
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:210'984 bytes
First seen:2024-09-13 04:39:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'598 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:9B3OtHI5KcJnfDZvlHsH8aIhvrtSPje6XTEO:9kopdlvi8aixweoEO
TLSH T1AB24123093694312E8FA0EB124F86373FE76F3723947CE7675A85351E6263A52029774
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: https://brasmundi.com.br/sgmfd.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
406
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-13 04:41:17 UTC
Tags:
stealer stealc loader
Link:
https://app.any.run/tasks/dcc30a4b-4d7c-49a3-8e86-d418ce2dafd6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Pwsx-10035189-0
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e3c22776bc4542b0498c6d
Tags:
Encryption Static
Result
Verdict:
Malware
Maliciousness:

Behaviour
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/66e3c2257a6496b86422c335/reports/a5bf34ce-785c-4d4c-8043-04a529187daa/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71
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/7cb285ee-8c94-43c1-88ba-674038d492f1
Result
Threat name:
LummaC, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1510595
Signature
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
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
Multi AV Scanner detection for domain / URL
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 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
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected LummaC Stealer
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: 1510595 Sample: file.exe Startdate: 13/09/2024 Architecture: WINDOWS Score: 100 61 brasmundi.com.br 2->61 71 Multi AV Scanner detection for domain / URL 2->71 73 Suricata IDS alerts for network traffic 2->73 75 Found malware configuration 2->75 77 11 other signatures 2->77 12 file.exe 2 2->12         started        signatures3 process4 file5 55 C:\Users\user\AppData\Local\...\file.exe.log, CSV 12->55 dropped 87 Contains functionality to inject code into remote processes 12->87 89 Writes to foreign memory regions 12->89 91 Allocates memory in foreign processes 12->91 93 Injects a PE file into a foreign processes 12->93 16 RegAsm.exe 38 12->16         started        21 conhost.exe 12->21         started        signatures6 process7 dnsIp8 57 46.8.231.109, 49744, 80 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 16->57 59 brasmundi.com.br 209.145.56.187, 443, 49745, 49746 CDMUS United States 16->59 45 C:\Users\userAKKKECBKKE.exe, PE32 16->45 dropped 47 C:\Users\user\AppData\Local\...\vfdnwe[1].exe, PE32 16->47 dropped 49 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 16->49 dropped 51 13 other files (none is malicious) 16->51 dropped 63 Tries to steal Mail credentials (via file / registry access) 16->63 65 Tries to harvest and steal ftp login credentials 16->65 67 Tries to harvest and steal browser information (history, passwords, etc) 16->67 69 4 other signatures 16->69 23 cmd.exe 1 16->23         started        25 cmd.exe 2 16->25         started        file9 signatures10 process11 process12 27 userAKKKECBKKE.exe 2 23->27         started        30 conhost.exe 23->30         started        32 conhost.exe 25->32         started        signatures13 79 Writes to foreign memory regions 27->79 81 Allocates memory in foreign processes 27->81 83 Injects a PE file into a foreign processes 27->83 85 LummaC encrypted strings found 27->85 34 RegAsm.exe 1 27->34         started        37 conhost.exe 27->37         started        39 RegAsm.exe 27->39         started        process14 file15 53 C:\Program Files\...\KH83DOSGWRQKZX28I.exe, PE32 34->53 dropped 41 KH83DOSGWRQKZX28I.exe 2 34->41         started        process16 process17 43 conhost.exe 41->43         started       
Score:
79%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-09-13 04:40:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2qa4gzyya5zg4533biebjrhe6vopifueorubhswtu7v32hj5pvyq._file
Verdict:
malicious
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/240913-fajrlsvcqp/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Stealc
Malware Config
C2 Extraction:
http://46.8.231.109
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/57669d33-2ab3-4c95-9a8e-1fc789dcfb59
Unpacked files
SH256 hash:
e0092d9787dcdc6444342b6be1c84fcbcfbff52110577599db455a61f3f981da
MD5 hash:
db0fabbc7f075bc72451ee8335303820
SHA1 hash:
f50039646ac66e3e3e044ab2f8aac65941a2716d
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/d38abc3e-b420-4cbd-a7e4-bf30ef709ffd/
Parent samples :
e80e120da34729c9fb7e7d4a684a7260f1346696ee8b3b514b6e512ebfa1bea4
00c66edc8b41592e299f449a6b7a4e3ab949f7cca0c27bba9a279feacc6e5b6b
daf4e8849a3b6011bff41cc2c7decee8c769a4ebf2be3d7316930f40448ddb25
ec9a1bede697caba74ff4666e0317cb3231fe37fbcb9f8821620c52d7d8a4dad
06510b52e07e89b5781f4ee3c7b4d94ff84c03931b3d7d93224294860feaccf4
c98f17dd444209ad0a6d71221b67cd632bc6409686f750bb5118a7e42eca91e0
d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71
91f03b0ae9dcae932e3043b7cb19cf52541504e9a4510501d9cb2f1ddd6d10f4
2e4deff4bfe5c4ce46b2d0a1f875dbc0933ec2e0f0e4a210990352601c29638e
5afff322d4b56afbe4429c6fd83aa2d699c51dbf4f5495b08ac104f07da8c49d
743948a05fa7b9a001b346699bc9fd4d645b755bc7ef73802b2a139288910f24
32d0ae27d9ae49a224785cd08bae82b0ec4e944145cb2f106873f70fc2908fe7
3f9daff50fd608eb15026903bf89ad2aafae0b344f0fd82e9ea82d4071a781d7
2bac0508680cb0cdf61b10a529c4a97dfc0562fe85b740abfef0ee2ff97a9fc2
d9bb5fc7267c854e20e63ef68546da25e71270c36bcee73e328437c891892945
6d70e80c80af977af8b15cb47304b4cbd78759faa406906ed3a9e0a6dac74773
bf4bd835390e2607c737360a2527ea292bd0451507f93b623d3f9bbf4036c2fe
e48219567f84882f41bb1e957bbd1358e453274ca0d2025505c66779f642bc30
d63d18c67f83e54c77072aa953c5e5c0496a7a4c2ac6ca8bd07e211ee80b3d6c
43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94
SH256 hash:
d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71
MD5 hash:
a991933b29e1203af5c3df1d62d0b247
SHA1 hash:
0979ff2723370bbd48ea50d59413a1741e4edd01
Link:
https://www.unpac.me/results/d38abc3e-b420-4cbd-a7e4-bf30ef709ffd/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d401c3671807/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/d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71

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:Detect_APT29_WINELOADER_Backdoor
Create hunting rule
Author:daniyyell
Description:Detects APT29's WINELOADER backdoor variant used in phishing campaigns, this rule also detect bad pdf,shtml,htm and vbs or maybe more depends
Reference:https://cloud.google.com/blog/topics/threat-intelligence/apt29-wineloader-german-political-parties
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: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 d401c3671807726e777b0a0814c4e4f55cf41684746813cad3a7ebbd1d3d7d71

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3169787/

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