MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe
SHA3-384 hash: 8fb4d963b0bb73d172c0b7a87cf597aade3ac9993f7610953fdc28ff05f6ea1ac2a21f8cd2f84b578f6331038f4f6cc1
SHA1 hash: fcb2b79d08e2fb7a58142faf7db2a36f142b309d
MD5 hash: e533f92146fcacb8caca823882b8d304
humanhash: cold-table-winter-seventeen
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:46'304 bytes
First seen:2024-03-12 10:25:56 UTC
Last seen:2024-03-12 12:43:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 768:ygDUz4vSd32TINlRjiniKEc3dJ3Bwj+3p5SNUMNTEFiRQ:zUz4Kd320N+nir2FMN9NeiS
TLSH T1A2238E12737C573BCFEF4BB99860621016749362AB41CBAD2DD4A0DE54ABBC507223E7
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter Bitsight
Tags:exe signed Stealc

Code Signing Certificate

Organisation:Microsoft Code Signing PCA 2011
Issuer:Microsoft Code Signing PCA 2011
Algorithm:sha256WithRSAEncryption
Valid from:2024-03-12T08:45:35Z
Valid to:2025-03-12T08:45:35Z
Serial number: 291b0d8c1a1196488d44c77b32422497
Thumbprint Algorithm:SHA256
Thumbprint: b565713d3bb668c26490eedb925608055875e63f795cd5de1729162e08caced2
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
Bitsight
url: http://15.204.38.240/files/Akh.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
373
Origin country :
US US
Vendor Threat Intelligence
Malware family:
glupteba
Create hunting rule
ID:
1
File name:
3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe.exe
Verdict:
Malicious activity
Analysis date:
2024-03-12 10:35:52 UTC
Tags:
hello2malware stealer stealc evasion trojan glupteba loader
Link:
https://app.any.run/tasks/1f26b62e-6245-4ebf-a385-026c3a318b0b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/478752/
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.943.15862.12541.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Connecting to a non-recommended domain
Creating a process with a hidden window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Blocking the User Account Control
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
89%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/65f02dbc757c624818ab76d5/reports/62386828-9f36-455c-9792-6fa61734e063/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe
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/ee9648f3-e100-4c5c-a1d6-f64942714e82
Result
Threat name:
Glupteba, Mars Stealer, Socks5Systemz, S
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1407460
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to infect the boot sector
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Disables UAC (registry)
Drops script or batch files to the startup folder
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found Tor onion address
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Sigma detected: Drops script at startup location
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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
Writes many files with high entropy
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Glupteba
Yara detected Mars stealer
Yara detected Socks5Systemz
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1407460 Sample: file.exe Startdate: 12/03/2024 Architecture: WINDOWS Score: 100 126 Found malware configuration 2->126 128 Malicious sample detected (through community Yara rule) 2->128 130 Antivirus detection for dropped file 2->130 132 15 other signatures 2->132 10 file.exe 15 3 2->10         started        15 svchost.exe 2->15         started        17 svchost.exe 1 1 2->17         started        process3 dnsIp4 120 14.232.235.13 VNPT-AS-VNVNPTCorpVN Viet Nam 10->120 122 74.103.66.15 UUNETUS United States 10->122 124 98 other IPs or domains 10->124 82 C:\Users\...\77EC63BDA74BD0D0E0426DC8F8008506, Microsoft 10->82 dropped 150 Writes to foreign memory regions 10->150 152 Adds a directory exclusion to Windows Defender 10->152 154 Disables UAC (registry) 10->154 156 3 other signatures 10->156 19 InstallUtil.exe 10->19         started        23 powershell.exe 21 10->23         started        25 WerFault.exe 10->25         started        27 WerFault.exe 15->27         started        file5 signatures6 process7 file8 74 C:\Users\...\zrNC9V37VM40VjYOUVLhb0U4.exe, PE32 19->74 dropped 76 C:\Users\...\xYgVykjMJXKeoDKuEBWTMXD2.exe, PE32 19->76 dropped 78 C:\Users\...\xPkU0vAnxq9kCf406fqJmxI3.exe, PE32 19->78 dropped 80 330 other malicious files 19->80 dropped 144 Drops script or batch files to the startup folder 19->144 146 Creates HTML files with .exe extension (expired dropper behavior) 19->146 148 Writes many files with high entropy 19->148 29 7g1UcaWDIadEWTPuXfBgjhjE.exe 19->29         started        32 fwUkFVOLVOFs3NY104r7giRJ.exe 19->32         started        34 MX6OxFuxXLJNkbD9F2dPLyyC.exe 19->34         started        41 16 other processes 19->41 37 conhost.exe 23->37         started        39 WmiPrvSE.exe 23->39         started        signatures9 process10 file11 102 C:\Users\user\AppData\Local\...\syncUpd.exe, PE32 29->102 dropped 104 C:\Users\user\AppData\Local\...\INetC.dll, PE32 29->104 dropped 106 C:\Users\user\AppData\...\BroomSetup.exe, PE32 29->106 dropped 43 syncUpd.exe 29->43         started        47 BroomSetup.exe 29->47         started        108 C:\Users\...\fwUkFVOLVOFs3NY104r7giRJ.tmp, PE32 32->108 dropped 49 fwUkFVOLVOFs3NY104r7giRJ.tmp 32->49         started        116 4 other malicious files 34->116 dropped 134 Writes many files with high entropy 34->134 51 MX6OxFuxXLJNkbD9F2dPLyyC.exe 34->51         started        53 MX6OxFuxXLJNkbD9F2dPLyyC.exe 34->53         started        110 C:\Users\...\mlSjlt4YcfcpuVp4aQsoCouK.tmp, PE32 41->110 dropped 112 C:\Users\...\DAOYzG6VUKOTbMmRBP4iG9FF.tmp, PE32 41->112 dropped 114 C:\Users\...\uOoBNdE6Sm5DmPd13osCbhQm.tmp, PE32 41->114 dropped 118 9 other malicious files 41->118 dropped 136 Detected unpacking (changes PE section rights) 41->136 138 Detected unpacking (overwrites its own PE header) 41->138 140 Found Tor onion address 41->140 142 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 41->142 55 DAOYzG6VUKOTbMmRBP4iG9FF.tmp 41->55         started        57 FnzHBAPEbvEEx8ZWWEvo0R6a.tmp 41->57         started        59 51fuIpAxuIxVSFNlFyLCdDUf.exe 41->59         started        61 8aNg0kr81H7icHssfXxzSpJA.exe 41->61         started        signatures12 process13 file14 94 12 other files (8 malicious) 43->94 dropped 158 Detected unpacking (changes PE section rights) 43->158 160 Detected unpacking (overwrites its own PE header) 43->160 162 Found many strings related to Crypto-Wallets (likely being stolen) 43->162 164 6 other signatures 43->164 63 cmd.exe 47->63         started        84 C:\Users\user\AppData\...\weblinkanalyzer.exe, PE32 49->84 dropped 96 16 other files (15 malicious) 49->96 dropped 65 weblinkanalyzer.exe 49->65         started        68 weblinkanalyzer.exe 49->68         started        86 Opera_installer_2403121027455829404.dll, PE32 51->86 dropped 88 Opera_installer_24031210274997611284.dll, PE32 53->88 dropped 98 3 other files (2 malicious) 55->98 dropped 100 3 other files (2 malicious) 57->100 dropped 90 Opera_installer_24031210275393811096.dll, PE32 59->90 dropped 92 Opera_installer_24031210280932613620.dll, PE32 61->92 dropped signatures15 process16 file17 70 conhost.exe 63->70         started        72 C:\...\DirectSoundDriver 2.36.198.67.exe, PE32 65->72 dropped process18
Score:
56%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe/
Threat name:
ByteCode-MSIL.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-03-12 10:26:06 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
2
AV detection:
16 of 24 (66.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=htylqk2lsgwaahw6px7honxufyvf4g6zzrw2gq4t5spbr3ebvh7a._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:glupteba family:socks5systemz family:stealc botnet discovery dropper evasion loader persistence rootkit spyware stealer trojan upx
Link:
https://tria.ge/reports/240312-mghlfsef5x/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Modifies data under HKEY_USERS
Modifies system certificate store
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
NSIS installer
Enumerates physical storage devices
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Creates a large amount of network flows
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Manipulates WinMonFS driver.
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
UPX packed file
Unexpected DNS network traffic destination
Windows security modification
Downloads MZ/PE file
Modifies Windows Firewall
Contacts a large (4178) amount of remote hosts
Glupteba
Glupteba payload
Socks5Systemz
Stealc
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
http://185.172.128.145
http://cseoaff.net/search/?q=67e28dd86e58a42e450ca94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c644db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608fff13c3e6979f39
Unpacked files
SH256 hash:
3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe
MD5 hash:
e533f92146fcacb8caca823882b8d304
SHA1 hash:
fcb2b79d08e2fb7a58142faf7db2a36f142b309d
Link:
https://www.unpac.me/results/eaecf139-8677-421c-a203-77b22e1d31bb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Stealc
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Web download

Stealc

Executable exe 3cf0b82b4b91ac001ede7dfe7736f42e2a5e1bd9cc6da34393ec9e18ec81a9fe

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2781338/
Cape
Cape
https://www.capesandbox.com/analysis/478752/

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments