MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1efb996935a283af752509705812d29a63c38146163f2ba264b494227b67454c. 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: 16


Intelligence 16 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1efb996935a283af752509705812d29a63c38146163f2ba264b494227b67454c
SHA3-384 hash: 221df4c228d87c48619caeb2382e42054de294fe5a9792f1702e224f81aa2b7ec9f1b76d01e5c7f9d54e6e40ca2b2abe
SHA1 hash: 8e30dea6789a1fe9bea151e8b37fc8df0c168418
MD5 hash: e74ddea043f21247d9b31c25150ed036
humanhash: pennsylvania-comet-sink-kitten
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:1'815'552 bytes
First seen:2024-08-27 17:26:41 UTC
Last seen:2024-08-27 18:46:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 24576:UF20WarqJvaLowsShR27J9vFp7B9GGxhxDVdkrWV9d1Ql8GQJiArQCm1j/fFyIh:UI1fhbShW9vFp7hvsWV9HEslm1jnFy
TLSH T1EC8533217993A44ACC9D40BCE5A31A0AB34C2E8107DCD9B7251BF5B60BF77248AF1D9D
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:exe MarsStealer


Avatar
Bitsight
url: http://31.41.244.11/steam/random.exe

Intelligence

File Origin
# of uploads :
10
# of downloads :
309
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-08-27 17:34:39 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/3c3d8af7-4631-4e1d-9769-6a6173458dcf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.1030.19898.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ce0c697a17e3c6872290ce
Tags:
Execution Generic Infostealer Network Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
Running batch commands
Creating a process with a hidden window
Launching a process
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66ce0c705959a837dd1145ac/reports/d4f014d1-01be-4439-84bb-5ffce9ad5025/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/1efb996935a283af752509705812d29a63c38146163f2ba264b494227b67454c
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/9316e5b6-00c5-4bc7-8c16-7d2ca72982eb
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1500016
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sigma detected: Suspicious File Creation In Uncommon AppData Folder
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
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)
Yara detected Amadeys stealer DLL
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1500016 Sample: file.exe Startdate: 27/08/2024 Architecture: WINDOWS Score: 100 86 Suricata IDS alerts for network traffic 2->86 88 Found malware configuration 2->88 90 Antivirus detection for URL or domain 2->90 92 12 other signatures 2->92 8 file.exe 38 2->8         started        13 svoutse.exe 19 2->13         started        15 svoutse.exe 2->15         started        17 3 other processes 2->17 process3 dnsIp4 64 185.215.113.100, 49710, 49727, 80 WHOLESALECONNECTIONSNL Portugal 8->64 66 31.41.244.11, 49718, 49724, 49726 AEROEXPRESS-ASRU Russian Federation 8->66 56 C:\Users\user\AppData\RoamingDHIEBAAKJD.exe, PE32 8->56 dropped 58 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->58 dropped 60 C:\Users\user\AppData\Local\...\random[1].exe, PE32 8->60 dropped 62 12 other files (8 malicious) 8->62 dropped 118 Detected unpacking (changes PE section rights) 8->118 120 Tries to steal Mail credentials (via file / registry access) 8->120 122 Found many strings related to Crypto-Wallets (likely being stolen) 8->122 134 5 other signatures 8->134 19 cmd.exe 1 8->19         started        21 cmd.exe 1 8->21         started        68 31.41.244.10, 49723, 49725, 49728 AEROEXPRESS-ASRU Russian Federation 13->68 124 Hides threads from debuggers 13->124 126 Tries to detect sandboxes / dynamic malware analysis system (registry check) 13->126 128 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 13->128 23 4e231bfef3.exe 13 13->23         started        26 d520ce8453.exe 13->26         started        130 Tries to evade debugger and weak emulator (self modifying code) 15->130 70 192.168.2.6, 443, 49704, 49706 unknown unknown 17->70 72 239.255.255.250 unknown Reserved 17->72 132 Maps a DLL or memory area into another process 17->132 28 msedge.exe 17->28         started        31 msedge.exe 17->31         started        33 msedge.exe 17->33         started        35 6 other processes 17->35 file5 signatures6 process7 dnsIp8 37 RoamingDHIEBAAKJD.exe 4 19->37         started        41 conhost.exe 19->41         started        43 userJJJKFBAAAF.exe 21->43         started        45 conhost.exe 21->45         started        108 Detected unpacking (changes PE section rights) 23->108 110 Tries to detect sandboxes and other dynamic analysis tools (window names) 23->110 112 Tries to evade debugger and weak emulator (self modifying code) 23->112 116 3 other signatures 23->116 114 Binary is likely a compiled AutoIt script file 26->114 47 msedge.exe 26->47         started        74 s-part-0029.t-0009.t-msedge.net 13.107.246.57, 443, 49752, 49754 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 28->74 76 142.250.80.14, 443, 49773, 49774 GOOGLEUS United States 28->76 78 5 other IPs or domains 28->78 signatures9 process10 file11 54 C:\Users\user\AppData\Local\...\svoutse.exe, PE32 37->54 dropped 94 Detected unpacking (changes PE section rights) 37->94 96 Tries to evade debugger and weak emulator (self modifying code) 37->96 98 Tries to detect virtualization through RDTSC time measurements 37->98 106 2 other signatures 37->106 49 svoutse.exe 37->49         started        100 Antivirus detection for dropped file 43->100 102 Machine Learning detection for dropped file 43->102 104 Hides threads from debuggers 43->104 52 msedge.exe 47->52         started        signatures12 process13 signatures14 80 Hides threads from debuggers 49->80 82 Tries to detect sandboxes / dynamic malware analysis system (registry check) 49->82 84 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 49->84
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1efb996935a283af752509705812d29a63c38146163f2ba264b494227b67454c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1efb996935a283af752509705812d29a63c38146163f2ba264b494227b67454c/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-08-27 17:27:07 UTC
File Type:
PE (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=d35zs2jvukb265jfbfyfqewstjr4hakgcy7sxitewskce63hivga._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:leva discovery evasion stealer
Link:
https://tria.ge/reports/240827-v1eb5stdkr/
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks BIOS information in registry
Identifies Wine through registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Malware Config
C2 Extraction:
http://185.215.113.100
Unpacked files
SH256 hash:
b634980d0c0f6da163c0ead70861dd8c92910278f14f2079b0bce93407dd5d88
MD5 hash:
8ccce2e7952051f67ffc7618052e408c
SHA1 hash:
7f62cc2dd2cbde28487b6d7b132b32ff37164d83
Detections:
stealc
Create hunting rule
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/a77b9b7a-964c-4ab2-9766-bbbaa9399780/
SH256 hash:
1efb996935a283af752509705812d29a63c38146163f2ba264b494227b67454c
MD5 hash:
e74ddea043f21247d9b31c25150ed036
SHA1 hash:
8e30dea6789a1fe9bea151e8b37fc8df0c168418
Link:
https://www.unpac.me/results/a77b9b7a-964c-4ab2-9766-bbbaa9399780/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1efb996935a2/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/1efb996935a283af752509705812d29a63c38146163f2ba264b494227b67454c

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

MarsStealer

Executable exe 1efb996935a283af752509705812d29a63c38146163f2ba264b494227b67454c

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3120904/
  
URLhaus
https://urlhaus.abuse.ch/url/3120910/
  
URLhaus
https://urlhaus.abuse.ch/url/3114824/
  
URLhaus
https://urlhaus.abuse.ch/url/3120900/
  
URLhaus
https://urlhaus.abuse.ch/url/3129259/

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
CHECK_NXMissing Non-Executable Memory Protectioncritical

Comments