MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42925f90758bbcac4f02d0f58e671ef5d071e1f528a3aa2b4cfa7715da9ff215. 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: 42925f90758bbcac4f02d0f58e671ef5d071e1f528a3aa2b4cfa7715da9ff215
SHA3-384 hash: 44a54f23d3f61c368f3b299f8595fd67a3dbf8a743997947e4e2d13139073ad6ba6170a8f00a2bcdf037fec7a6ab789e
SHA1 hash: 0f61ea4fff3a4160ee5eadbec3ee35506c98b10f
MD5 hash: 510ef6656d676509abf2ff0e28ecda55
humanhash: washington-jig-salami-lamp
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'469'888 bytes
First seen:2024-07-09 07:45:18 UTC
Last seen:2024-07-09 08:24:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:TQ4wKF7TllIgRYTR+Y27rZ8xpIEHxHGfq779f2Ucsfly0RPnu8Cmvf:hTvIgRYTR/8wGEHxLn1TfIUPgmv
Threatray 71 similar samples on MalwareBazaar
TLSH T126B533F6123CC15BD981B3BA4C244F23224D393C5B279CE602BE15A11EDC796AD9C6BD
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 :
6
# of downloads :
321
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
42925f90758bbcac4f02d0f58e671ef5d071e1f528a3aa2b4cfa7715da9ff215.exe
Verdict:
Malicious activity
Analysis date:
2024-07-09 08:43:03 UTC
Tags:
stealer stealc loader antivm amadey botnet themida
Link:
https://app.any.run/tasks/ebc3fb4d-0207-44c9-82a6-6dc49b1549f1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668ceabbd6caced36c82e35cwin7simulatehigh_evasion
Tags:
Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Connection attempt 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/668ceabd7731d034e8813b39/reports/d9e5babf-ff90-463b-8839-5ec2ae571347/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/42925f90758bbcac4f02d0f58e671ef5d071e1f528a3aa2b4cfa7715da9ff215
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/10c48786-6fd4-46af-a61c-7bd841611e13
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1469903
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
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 dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Potentially malicious time measurement code found
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 Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1469903 Sample: file.exe Startdate: 09/07/2024 Architecture: WINDOWS Score: 100 103 youtube-ui.l.google.com 2->103 105 www.youtube.com 2->105 107 26 other IPs or domains 2->107 141 Snort IDS alert for network traffic 2->141 143 Found malware configuration 2->143 145 Antivirus detection for URL or domain 2->145 147 14 other signatures 2->147 12 file.exe 37 2->12         started        17 explorti.exe 2->17         started        19 explorti.exe 2->19         started        21 5 other processes 2->21 signatures3 process4 dnsIp5 129 85.28.47.30, 49706, 80 GES-ASRU Russian Federation 12->129 131 77.91.77.81, 49707, 49712, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 12->131 91 C:\Users\user\AppData\...\KJJECGHJDB.exe, PE32 12->91 dropped 93 C:\Users\user\AppData\...\KFIEHIIIJD.exe, PE32 12->93 dropped 95 C:\Users\user\AppData\...\softokn3[1].dll, PE32 12->95 dropped 101 12 other files (4 malicious) 12->101 dropped 177 Detected unpacking (changes PE section rights) 12->177 179 Tries to steal Mail credentials (via file / registry access) 12->179 181 Found many strings related to Crypto-Wallets (likely being stolen) 12->181 191 4 other signatures 12->191 23 cmd.exe 1 12->23         started        25 cmd.exe 1 12->25         started        183 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 17->183 185 Hides threads from debuggers 17->185 187 Tries to detect sandboxes / dynamic malware analysis system (registry check) 17->187 189 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 19->189 133 prod.detectportal.prod.cloudops.mozgcp.net 21->133 135 detectportal.firefox.com 21->135 97 topTraffic_1705401...0506234197983529371, data 21->97 dropped 99 C:\Users\user\AppData\Local\...\topTraffic, ASCII 21->99 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 KFIEHIIIJD.exe 4 23->37         started        41 conhost.exe 23->41         started        43 KJJECGHJDB.exe 25->43         started        45 conhost.exe 25->45         started        117 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82 GOOGLEUS United States 27->117 119 telemetry-incoming.r53-2.services.mozilla.com 34.120.208.123 GOOGLEUS United States 27->119 125 8 other IPs or domains 27->125 87 C:\Users\user\AppData\...\gmpopenh264.dll.tmp, PE32+ 27->87 dropped 89 C:\Users\user\...\gmpopenh264.dll (copy), PE32+ 27->89 dropped 47 firefox.exe 27->47         started        49 firefox.exe 27->49         started        51 firefox.exe 27->51         started        121 13.107.21.237 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 31->121 123 13.107.246.40 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 31->123 127 19 other IPs or domains 31->127 file10 process11 file12 81 C:\Users\user\AppData\Local\...\explorti.exe, PE32 37->81 dropped 149 Detected unpacking (changes PE section rights) 37->149 151 Tries to evade debugger and weak emulator (self modifying code) 37->151 153 Tries to detect virtualization through RDTSC time measurements 37->153 155 Potentially malicious time measurement code found 37->155 53 explorti.exe 19 37->53         started        157 Hides threads from debuggers 43->157 159 Tries to detect sandboxes / dynamic malware analysis system (registry check) 43->159 161 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 43->161 signatures13 process14 dnsIp15 109 77.91.77.82, 49711, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 53->109 83 C:\Users\user\AppData\...\a24fcac372.exe, PE32 53->83 dropped 85 C:\Users\user\AppData\Local\...\random[1].exe, PE32 53->85 dropped 163 Detected unpacking (changes PE section rights) 53->163 165 Tries to detect sandboxes and other dynamic analysis tools (window names) 53->165 167 Tries to evade debugger and weak emulator (self modifying code) 53->167 169 3 other signatures 53->169 58 a24fcac372.exe 12 53->58         started        61 cmd.exe 1 53->61         started        file16 signatures17 process18 signatures19 171 Multi AV Scanner detection for dropped file 58->171 173 Detected unpacking (changes PE section rights) 58->173 175 Hides threads from debuggers 58->175 63 chrome.exe 61->63         started        66 msedge.exe 61->66         started        68 conhost.exe 61->68         started        70 firefox.exe 61->70         started        process20 dnsIp21 137 192.168.2.9, 443, 49704, 49706 unknown unknown 63->137 139 239.255.255.250 unknown Reserved 63->139 72 chrome.exe 63->72         started        75 chrome.exe 63->75         started        77 chrome.exe 63->77         started        79 msedge.exe 66->79         started        process22 dnsIp23 111 www.google.com 142.250.185.68 GOOGLEUS United States 72->111 113 www3.l.google.com 172.217.16.206 GOOGLEUS United States 72->113 115 5 other IPs or domains 72->115
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/42925f90758bbcac4f02d0f58e671ef5d071e1f528a3aa2b4cfa7715da9ff215
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/42925f90758bbcac4f02d0f58e671ef5d071e1f528a3aa2b4cfa7715da9ff215/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-07-09 07:16:17 UTC
File Type:
PE (Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ikjf7edvro6kytyc2d2y4zy66xihdypvfcr2uk2m7j3rlwu76ikq._file
Verdict:
malicious
Similar samples:
7378f4059b53f7da3e135c76ce4d6d6dc3af8106f510f128a77c5688f958a803
Stealc
9e12b808314ab31153be5ca2472dde413e0f3d8c0fdb038261397d7a4881b739
Stealc
ad19679fc29e8a399dbb3d9f80d5cd9284d22140b05ac66e501b2e6c1596e4ee
Stealc
c11e7133c481e34c3ac90d33416e85490b4e4b3b2af782fae22138298bb0e404
Stealc
ce21a22b3d7427ebb8a02ad8fc8df36c07005afc359a5402a16a66862d91fc14
Stealc
f5e680092bbd672fc6bf7a403a7f186365032494dd055b24bcb6801a9d54dc39
Stealc
+ 61 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:hate discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240709-jly78awcjf/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
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
Deletes itself
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/9be8b1f2-f5bc-4fe2-a46c-d20f5338c07c
Unpacked files
SH256 hash:
42925f90758bbcac4f02d0f58e671ef5d071e1f528a3aa2b4cfa7715da9ff215
MD5 hash:
510ef6656d676509abf2ff0e28ecda55
SHA1 hash:
0f61ea4fff3a4160ee5eadbec3ee35506c98b10f
Link:
https://www.unpac.me/results/f83f5640-db23-43ac-8bc6-14a509a9572a/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/42925f90758b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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 42925f90758bbcac4f02d0f58e671ef5d071e1f528a3aa2b4cfa7715da9ff215

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2945045/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2908698/
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/

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