MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca. 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: 15


Intelligence 15 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca
SHA3-384 hash: 9244cf704aebc16f044c12ff759d2ae3c457fa82a3458fd8b7a0dc8c2c436bb251e2e87bdf79190f7c8466da0b4e4013
SHA1 hash: 890045ab5c2fd9826849dbefe0faac290807fe46
MD5 hash: fb5a364d0cb0b8cf699a729c6846868b
humanhash: nevada-angel-muppet-bulldog
File name:fb5a364d0cb0b8cf699a729c6846868b.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:466'945 bytes
First seen:2024-04-28 09:26:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f654e5c1b5e321f3cf66a20ff016ccab (12 x Stealc, 1 x UACModuleSmokeLoader)
ssdeep 6144:Hb1m+ZBBrVw6UuNeqsGqJJ2hUOWXzt1YyQut4Mq75gQ/l67I2XDihjZdx:7c+5vdsGguOt1YyN4MyN/EQZdx
Threatray 241 similar samples on MalwareBazaar
TLSH T1C5A4AE0362E07C94E56687738E3EF6E4361DF9608E956B2F22087ABF04B51F1E253791
TrID 67.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.2% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 10242044c4884800 (5 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.62/902e53a07830e030.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
295
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca.exe
Verdict:
Malicious activity
Analysis date:
2024-04-28 09:43:06 UTC
Tags:
gcleaner loader stealc stealer hijackloader arechclient2 backdoor
Link:
https://app.any.run/tasks/c1114e7a-8228-4b1e-ab64-064173291ca0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
DNS request
Connection attempt
Sending an HTTP GET request
Connecting to a non-recommended domain
Creating a window
Searching for synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP POST request
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Connection attempt to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint overlay packed
Link:
https://www.filescan.io/uploads/662e166875339da04fa46a9b/reports/59a0532d-09f4-4f74-bfe3-1d964ae6e5bf/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca
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/e76fa125-f4e9-4984-9cc2-ce145e828781
Result
Threat name:
Mars Stealer, PureLog Stealer, RedLine,
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1432841
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
Connects to many ports of the same IP (likely port scanning)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found direct / indirect Syscall (likely to bypass EDR)
Found evasive API chain (may stop execution after checking locale)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected Stealc
Yara detected UAC Bypass using CMSTP
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1432841 Sample: 8yExXjviIS.exe Startdate: 28/04/2024 Architecture: WINDOWS Score: 100 61 download.iolo.net 2->61 63 westus2-2.in.applicationinsights.azure.com 2->63 65 6 other IPs or domains 2->65 95 Snort IDS alert for network traffic 2->95 97 Multi AV Scanner detection for domain / URL 2->97 99 Found malware configuration 2->99 101 18 other signatures 2->101 9 8yExXjviIS.exe 4 11 2->9         started        14 run.exe 2 2->14         started        signatures3 process4 dnsIp5 73 185.172.128.90, 49704, 80 NADYMSS-ASRU Russian Federation 9->73 75 185.172.128.228, 49705, 80 NADYMSS-ASRU Russian Federation 9->75 77 2 other IPs or domains 9->77 51 C:\Users\user\AppData\Local\Temp\u42o.3.exe, PE32 9->51 dropped 53 C:\Users\user\AppData\Local\Temp\...\run.exe, PE32 9->53 dropped 55 C:\Users\user\AppData\Local\...\relay.dll, PE32 9->55 dropped 57 2 other malicious files 9->57 dropped 109 Detected unpacking (overwrites its own PE header) 9->109 16 run.exe 6 9->16         started        20 u42o.0.exe 12 9->20         started        23 u42o.3.exe 24 8 9->23         started        25 WerFault.exe 22 16 9->25         started        111 Maps a DLL or memory area into another process 14->111 113 Found direct / indirect Syscall (likely to bypass EDR) 14->113 27 cmd.exe 2 14->27         started        file6 signatures7 process8 dnsIp9 45 C:\Users\user\AppData\Roaming\...\relay.dll, PE32 16->45 dropped 47 C:\Users\user\AppData\...\UIxMarketPlugin.dll, PE32 16->47 dropped 79 Maps a DLL or memory area into another process 16->79 81 Found direct / indirect Syscall (likely to bypass EDR) 16->81 29 cmd.exe 4 16->29         started        67 185.172.128.62, 49708, 80 NADYMSS-ASRU Russian Federation 20->67 83 Multi AV Scanner detection for dropped file 20->83 85 Detected unpacking (changes PE section rights) 20->85 87 Detected unpacking (overwrites its own PE header) 20->87 93 3 other signatures 20->93 69 svc.iolo.com 20.157.87.45 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 23->69 89 Checks if the current machine is a virtual machine (disk enumeration) 23->89 33 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 23->33         started        49 C:\Users\user\AppData\Local\...\ftengrjbshpf, PE32 27->49 dropped 91 Writes to foreign memory regions 27->91 35 conhost.exe 27->35         started        37 MSBuild.exe 27->37         started        file10 signatures11 process12 file13 59 C:\Users\user\AppData\Local\...\wdhfnfgvrupn, PE32 29->59 dropped 115 Writes to foreign memory regions 29->115 117 Found hidden mapped module (file has been removed from disk) 29->117 119 Maps a DLL or memory area into another process 29->119 39 MSBuild.exe 8 29->39         started        43 conhost.exe 29->43         started        121 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 33->121 123 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 33->123 125 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 33->125 signatures14 process15 dnsIp16 71 91.215.85.66 PINDC-ASRU Russian Federation 39->71 103 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 39->103 105 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 39->105 107 Tries to harvest and steal browser information (history, passwords, etc) 39->107 signatures17
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca/
Threat name:
Win32.Trojan.StealC
Create hunting rule
Status:
Malicious
First seen:
2024-04-28 09:27:05 UTC
File Type:
PE (Exe)
Extracted files:
62
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5andlru45pntoz7hguqamomxhax7floa5lnfarnp6pnlnzlmndfa._file
Verdict:
malicious
Similar samples:
0918a0e9939f235924a5fb65284c97efff83f871bc1851c7e61b1b9800512885
Stealc
1562435949a43d05963e88e6dca52df0b7510a08b28a25feff91f810e29a3cfb
Stealc
209765690105250f9d48d09d6bf6c4bbe22668e38b7b7e400b703e27bec45057
Stealc
38b68616e12f54f0ed94d719751a9534394f3435ef49fe967c1bba3d62d1a67f
Stealc
3b37fec0af4f32196086cfaad850c32113b60766190d283e2bc2f92a19b8cf20
Stealc
5bb83f0ba00575c13ebd140a39a6f08a109e262dcadf5d6acf1e1df06dfd2192
Stealc
711255b88ff35cdd174c920672c0ebc2da771f5ba47b7afc1e10666e6bd351ee
Stealc
ed178bcbabb10ed904b432c53d08aa215a07511889dfc34225dd852c088a833e
Stealc
eda309e9f5afdc6214420da0f10f6efd2890fa0d350d618715d1f85e94454458
Stealc
+ 231 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:stealc family:zgrat discovery rat stealer
Link:
https://tria.ge/reports/240428-leq95scg91/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks installed software on the system
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Detect ZGRat V1
Stealc
ZGRat
Malware Config
C2 Extraction:
http://185.172.128.62
Unpacked files
SH256 hash:
cfc2458a54578854cae748277b7527e4a2ff4a49aa4a55b885109fc334f73865
MD5 hash:
f24e8a42d193b41ec73c76a36c30ee0d
SHA1 hash:
4ceab3b79d49350c6d9575470cd273ec1d8b26cd
Link:
https://www.unpac.me/results/0cea3b16-5661-4b65-8450-8180c1c8086f/
SH256 hash:
e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca
MD5 hash:
fb5a364d0cb0b8cf699a729c6846868b
SHA1 hash:
890045ab5c2fd9826849dbefe0faac290807fe46
Link:
https://www.unpac.me/results/0cea3b16-5661-4b65-8450-8180c1c8086f/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e81a35c69ceb/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/e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of MFA browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Stealc_str
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:Stealc infostealer
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Stealc_b8ab9ab5
Create hunting rule
Author:Elastic Security
Rule name:win_stealc_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stealc.
Rule name:yara_template
Create hunting rule

File information

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

Web download

Stealc

Executable exe e81a35c69cebdb3767e73520063997382ff2adc0eada5045aff3dab6e56c68ca

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2813846/
  
Delivery method
Distributed via web download

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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesA
KERNEL32.dll::GetConsoleProcessList
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryA
KERNEL32.dll::GetTempPathA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
KERNEL32.dll::QueryDosDeviceW

Comments