MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1b2f49a7d3f41631b9db7b8a1bcf8d4f81207a41e2b5b21d1435f0d63bd75f1e. 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: 13
| SHA256 hash: | 1b2f49a7d3f41631b9db7b8a1bcf8d4f81207a41e2b5b21d1435f0d63bd75f1e |
|---|---|
| SHA3-384 hash: | f28caf93284e0caef29bcac54620f466ef50b9c04466cead96fe30267458b04c7a40f88c7a69701ac97867967916ed27 |
| SHA1 hash: | ac728fe6745fe585d83905750f9a46b94e685b50 |
| MD5 hash: | b3f42b33a6201216d8682d2e53552b83 |
| humanhash: | ten-maryland-illinois-oxygen |
| File name: | b3f42b33a6201216d8682d2e53552b83.exe |
| Download: | download sample |
| Signature | Stealc |
| File size: | 2'622'520 bytes |
| First seen: | 2023-09-30 01:20:53 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 49152:OQsIYaqMoq24tp4g9Vo7q/oXJmxeqU3rR0BqrzSrwG9Mg:Wpaxd19xqt9CBqrzSrwGOg |
| Threatray | 2 similar samples on MalwareBazaar |
| TLSH | T175C5F0423F598A01E13A7A32C5E34119476AF9C77363F61B2EDB03E94A123CD5DC89AD |
| TrID | 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10523/12/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | d4b4f4ececf0c8ac (1 x Stealc) |
| Reporter |  abuse_ch |
| Tags: | exe Stealc |
Intelligence
File Origin
# of uploads :
1
# of downloads :
289
Origin country :
NLVendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a file in the %temp% directory
Launching a process
Creating a file
Running batch commands
Creating a process with a hidden window
Forced shutdown of a system process
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
10/10
Confidence:
91%
Tags:
lolbin overlay packed packed regasm
Verdict:
Malicious
Labled as:
Trojan.Generic
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:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Stealc
Status:
Malicious
First seen:
2023-09-26 20:20:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 36 (55.56%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Result
Malware family:
stealc
Score:
10/10
Tags:
family:stealc discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
.NET Reactor proctector
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://217.196.96.138
Unpacked files
SH256 hash:
c0541c65480fc76bcb5d3051a09fc37ac3b142cffb9610bc18dc126019244578
MD5 hash:
d2f3b0cf703fa14085854400ecbad6b1
SHA1 hash:
d12ccac16d40e436ac650a416fe6171568916ad4
Detections:
stealc
SH256 hash:
182f57d8c89fee4667fbb3420a9877b8198c4b9d0867660172c13dd9044f6f64
MD5 hash:
626b2239011878b0d6b779006bd66a91
SHA1 hash:
c79ecfe4c27d42c9d8f88a0be738790c56143d7d
SH256 hash:
6a26df7ee49de6fec6c5de1f3f7a94075d2dfbc50922e3b30fd8111f2e734f33
MD5 hash:
f45c1512d5a47375e6e396b4d1111e58
SHA1 hash:
8af036b8c60d10e85cf82212930bb04bc0553f36
SH256 hash:
dfce2d4d06de6452998b3c5b2dc33eaa6db2bd37810d04e3d02dc931887cfddd
MD5 hash:
544cd51a596619b78e9b54b70088307d
SHA1 hash:
4769ddd2dbc1dc44b758964ed0bd231b85880b65
SH256 hash:
98332102a15991246705aac364869155829defd07716b0f51ad8760bc5eccc8d
MD5 hash:
30f70891effcb8f7f49f989bf7ee0645
SHA1 hash:
2b38d69613c6b28e4776c9f5dd27b818f93304dc
SH256 hash:
1b2f49a7d3f41631b9db7b8a1bcf8d4f81207a41e2b5b21d1435f0d63bd75f1e
MD5 hash:
b3f42b33a6201216d8682d2e53552b83
SHA1 hash:
ac728fe6745fe585d83905750f9a46b94e685b50
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|
| Rule name: | detect_Mars_Stealer |
|---|---|
| Author: | @malgamy12 |
| Description: | detect_Mars_Stealer |
| Rule name: | INDICATOR_EXE_Packed_DotNetReactor |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with unregistered version of .NET Reactor |
| Rule name: | INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs |
|---|---|
| Author: | ditekSHen |
| Description: | Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. |
| Rule name: | INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs |
|---|---|
| Author: | ditekSHen |
| Description: | Detect binaries embedding considerable number of MFA browser extension IDs. |
| Rule name: | INDICATOR_SUSPICIOUS_Binary_References_Browsers |
|---|---|
| Author: | ditekSHen |
| Description: | Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | QbotStuff |
|---|---|
| Author: | anonymous |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | yara_template |
|---|
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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