MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22. 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


Stealc


Vendor detections: 16


Intelligence 16 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22
SHA3-384 hash: acfb039221dfecebc4caa60142b8859858725bb70f1b5631510dbe9ea0b3a626396a8128fa72e703882ea7c36f277a0b
SHA1 hash: a3dca1dc8b61381c1fca9f6951352aa5f6a2403f
MD5 hash: 372c9047c2f9bc0241a64b506054fa0a
humanhash: cola-pluto-mirror-skylark
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'552'832 bytes
First seen:2024-07-08 10:23:14 UTC
Last seen:2024-07-08 12:39:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:vUlvV1PH2uIE3Hnj3d6Swz5+8gPNwvHTnUzHuC/yTkRT2VxLvgs:cp3P2xET3d6SwFUwvzCzTELYs
TLSH T16BC533EF3B607E43E5E8A5F74400A4B5A376CFA995808EDE647C05F49F2407A582A13F
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)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://77.91.77.81/stealc/random.exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
404
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22.exe
Verdict:
Malicious activity
Analysis date:
2024-07-08 10:24:27 UTC
Tags:
stealer stealc loader antivm amadey botnet themida
Link:
https://app.any.run/tasks/a02e750f-3b4b-4efe-9107-92a419a64376

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Fileinfector-9838335-0
Create hunting rule

PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668bbe4427fa347bfaae8579win7simulatehigh_evasion
Tags:
Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
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:
enigma lolbin microsoft_visual_cc packed packed shell32
Link:
https://www.filescan.io/uploads/668bbe44bb965284a1c5925f/reports/720f16ce-deeb-470f-8d84-6a3af084fceb/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22
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:
Malicious
Link:
https://analyze.intezer.com/analyses/f788be9e-069f-4efa-96ad-ff60e3d3de7d
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1469040
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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 sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Overwrites Mozilla Firefox settings
PE file contains section with special chars
PE file has nameless sections
Sample uses string decryption to hide its real strings
Snort IDS alert 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 Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1469040 Sample: file.exe Startdate: 08/07/2024 Architecture: WINDOWS Score: 100 101 youtube-ui.l.google.com 2->101 103 www.youtube.com 2->103 105 27 other IPs or domains 2->105 139 Snort IDS alert for network traffic 2->139 141 Multi AV Scanner detection for domain / URL 2->141 143 Found malware configuration 2->143 145 14 other signatures 2->145 12 file.exe 37 2->12         started        17 explorti.exe 2->17         started        19 explorti.exe 2->19         started        21 7 other processes 2->21 signatures3 process4 dnsIp5 127 85.28.47.30, 49704, 49722, 80 GES-ASRU Russian Federation 12->127 129 77.91.77.81, 49705, 49719, 49723 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 12->129 89 C:\Users\user\AppData\...\KKEBKJJDGH.exe, PE32 12->89 dropped 91 C:\Users\user\AppData\...\softokn3[1].dll, PE32 12->91 dropped 93 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 12->93 dropped 99 11 other files (none is malicious) 12->99 dropped 169 Detected unpacking (changes PE section rights) 12->169 171 Tries to steal Mail credentials (via file / registry access) 12->171 173 Found many strings related to Crypto-Wallets (likely being stolen) 12->173 181 5 other signatures 12->181 23 cmd.exe 1 12->23         started        25 cmd.exe 2 12->25         started        175 Hides threads from debuggers 17->175 177 Tries to detect sandboxes / dynamic malware analysis system (registry check) 17->177 179 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 17->179 131 192.168.2.4 unknown unknown 21->131 95 topTraffic_1705401...0506234197983529371, data 21->95 dropped 97 C:\Users\user\AppData\Local\...\topTraffic, ASCII 21->97 dropped 27 firefox.exe 21->27         started        31 msedge.exe 21->31         started        33 msedge.exe 21->33         started        35 6 other processes 21->35 file6 signatures7 process8 dnsIp9 37 KKEBKJJDGH.exe 4 23->37         started        41 conhost.exe 23->41         started        43 conhost.exe 25->43         started        115 142.250.186.78 GOOGLEUS United States 27->115 117 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82 GOOGLEUS United States 27->117 123 9 other IPs or domains 27->123 85 C:\Users\user\AppData\...\gmpopenh264.dll.tmp, PE32+ 27->85 dropped 87 C:\Users\user\...\gmpopenh264.dll (copy), PE32+ 27->87 dropped 45 firefox.exe 27->45         started        47 firefox.exe 27->47         started        49 firefox.exe 27->49         started        119 13.107.21.200 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 31->119 121 13.107.22.239, 443, 49773 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 31->121 125 21 other IPs or domains 31->125 file10 process11 file12 83 C:\Users\user\AppData\Local\...\explorti.exe, PE32 37->83 dropped 155 Detected unpacking (changes PE section rights) 37->155 157 Tries to evade debugger and weak emulator (self modifying code) 37->157 159 Tries to detect virtualization through RDTSC time measurements 37->159 161 3 other signatures 37->161 51 explorti.exe 19 37->51         started        signatures13 process14 dnsIp15 107 77.91.77.82, 49717, 49721, 49724 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 51->107 79 C:\Users\user\AppData\...\639a673e98.exe, PE32 51->79 dropped 81 C:\Users\user\AppData\Local\...\random[1].exe, PE32 51->81 dropped 147 Detected unpacking (changes PE section rights) 51->147 149 Tries to detect sandboxes and other dynamic analysis tools (window names) 51->149 151 Tries to evade debugger and weak emulator (self modifying code) 51->151 153 4 other signatures 51->153 56 639a673e98.exe 12 51->56         started        59 cmd.exe 1 51->59         started        file16 signatures17 process18 signatures19 163 Multi AV Scanner detection for dropped file 56->163 165 Detected unpacking (changes PE section rights) 56->165 167 Hides threads from debuggers 56->167 61 chrome.exe 59->61         started        64 msedge.exe 59->64         started        66 conhost.exe 59->66         started        68 firefox.exe 59->68         started        process20 dnsIp21 133 192.168.2.5, 443, 49703, 49704 unknown unknown 61->133 135 192.168.2.7 unknown unknown 61->135 137 239.255.255.250 unknown Reserved 61->137 70 chrome.exe 61->70         started        73 chrome.exe 61->73         started        75 chrome.exe 61->75         started        77 msedge.exe 64->77         started        process22 dnsIp23 109 play.google.com 142.250.184.238 GOOGLEUS United States 70->109 111 youtube-ui.l.google.com 142.250.185.206, 443, 49726 GOOGLEUS United States 70->111 113 6 other IPs or domains 70->113
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-07-08 10:24:14 UTC
File Type:
PE (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g6asibug6ghujt5yhf674rrmczfab4gewcaxpndickn4rra2d4ra._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:nice discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240708-mfdacaxamc/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Stealc
Malware Config
C2 Extraction:
http://85.28.47.30
http://77.91.77.82
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8cea5f60-7551-43a3-b4ee-6eb11e2fe411
Unpacked files
SH256 hash:
3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22
MD5 hash:
372c9047c2f9bc0241a64b506054fa0a
SHA1 hash:
a3dca1dc8b61381c1fca9f6951352aa5f6a2403f
Link:
https://www.unpac.me/results/85440307-994b-4d6d-9b96-0adc5562d17d/
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/3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22

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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

Web download

Stealc

Executable exe 3781240686f18f44cfb8397dfe462c164a00f0c4b08177b468129bc8c41a1f22

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2941921/
  
URLhaus
https://urlhaus.abuse.ch/url/2908698/

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
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_BASE_IO_APICan Create Filesversion.dll::GetFileVersionInfoA

Comments