MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7178573c2e0e321c549d07d474ca385d516675ade291cab6dbe2ebd222f46b2. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7178573c2e0e321c549d07d474ca385d516675ade291cab6dbe2ebd222f46b2
SHA3-384 hash: e0dc7e58af8b4f165876269ef13a38399ca29ce0fa5b54712179841e7a122701122bbb2325b288a7aa34aa73439a7594
SHA1 hash: 76336e1d4cc21812b6226c6be8e1cd2fb097814c
MD5 hash: 81c4cdd52e9bafde6eb1d96e2ebf9e88
humanhash: queen-aspen-sad-river
File name:81c4cdd52e9bafde6eb1d96e2ebf9e88.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:3'900'760 bytes
First seen:2023-05-26 18:15:13 UTC
Last seen:2023-05-26 18:42:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 49152:8o2L2yx8eJtHqnGHlcdWG7ND2BD1zsUCgG4D2palQy:Dy
Threatray 36 similar samples on MalwareBazaar
TLSH T16806C0322963FCEFE7AD2D69E4C225010DCDA9E3A115DB78FD8D09AA34F47509E245B0
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 696a6ee2b2b2c2cc (18 x RedLineStealer, 17 x LummaStealer, 16 x CoinMiner)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://5.78.104.48/d130c39575999622.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
275
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
81c4cdd52e9bafde6eb1d96e2ebf9e88.exe
Verdict:
Malicious activity
Analysis date:
2023-05-26 18:18:04 UTC
Tags:
stealc trojan stealer loader
Link:
https://app.any.run/tasks/055da9bf-1ee3-45fa-921e-375103e21aac

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/392239/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.30942.1383.28856.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed warp
Link:
https://www.filescan.io/uploads/6470f76439eb29561ed2235a/reports/e3bfbff1-5b03-415d-9938-5c81452ef50c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b7178573c2e0e321c549d07d474ca385d516675ade291cab6dbe2ebd222f46b2
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/11800173-529d-4e64-9239-d404f33f3de4
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1243430
Signature
.NET source code contains potential unpacker
Encrypted powershell cmdline option found
Found evasive API chain (may stop execution after checking locale)
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 876439 Sample: o9Pjil3Im8.exe Startdate: 26/05/2023 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 8 other signatures 2->55 7 o9Pjil3Im8.exe 1 7 2->7         started        11 Tamhge.exe 4 2->11         started        13 Tamhge.exe 3 2->13         started        process3 file4 33 C:\Users\user\AppData\Roaming\...\Tamhge.exe, PE32 7->33 dropped 35 C:\Users\user\...\Tamhge.exe:Zone.Identifier, ASCII 7->35 dropped 37 C:\Users\user\AppData\...\o9Pjil3Im8.exe.log, ASCII 7->37 dropped 57 Encrypted powershell cmdline option found 7->57 59 Writes to foreign memory regions 7->59 61 Injects a PE file into a foreign processes 7->61 15 InstallUtil.exe 15 7->15         started        19 powershell.exe 16 7->19         started        21 InstallUtil.exe 11->21         started        23 powershell.exe 11->23         started        25 powershell.exe 13->25         started        signatures5 process6 dnsIp7 39 5.78.104.48, 49699, 49700, 49701 PARSONLINETehran-IRANIR Iran (ISLAMIC Republic Of) 15->39 41 Tries to steal Mail credentials (via file / registry access) 15->41 43 Tries to harvest and steal browser information (history, passwords, etc) 15->43 45 Found evasive API chain (may stop execution after checking locale) 15->45 47 Tries to steal Crypto Currency Wallets 15->47 27 conhost.exe 19->27         started        29 conhost.exe 23->29         started        31 conhost.exe 25->31         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7178573c2e0e321c549d07d474ca385d516675ade291cab6dbe2ebd222f46b2/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2023-05-26 18:16:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
14 of 24 (58.33%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w4lyk46c4drsdrkj2b6uotfdqxkrmz223yurzk3nxyxl2irpi2za._file
Verdict:
malicious
Similar samples:
1a2e826464bdcc9ad50fda1e61209364916e52659871a7510005f5621a70008e
Stealc
1e32754c58c05364d4948c25cb1a1bc6ca99e63353dd5980b52ba3d5cc02fd6c
Stealc
2e4b741045b4b37e50fa55678d713e6a63b87df0f5dc912b90c1487a8e9fcc85
Stealc
32710d6d01f3d637eea39e90247dce8e2007bd9acb91c685713c7f0a1df5ed76
Stealc
968d112db7a7074ac9c934c1f34535e6119c163080266cbf02120c8679ad169d
Stealc
afb6ebaef93a9f20bc3e52580cdcd0ca4558dc8307485d1b7c52380a686680fe
Stealc
c1f70d82d56a3ddf30730e0ccd8f0e25ec7c6e7489b1ec4d5cc680e91508f239
Stealc
d13c4153216e26f6467c9f0d4db101e3581ea01efd8c0b81bc8033e421880b7e
Stealc
d182fa757e7b1a39ae31bb165ff358931a5454115363bd636faeeb41e2aee3c1
Stealc
db382f9a496a46db8d4eaa52ff67355a1d54ccf8531ba6d5ef06c5b445d5d436
Stealc
+ 26 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc persistence spyware stealer
Link:
https://tria.ge/reports/230526-wwfj3shb7z/
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
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Downloads MZ/PE file
Detects Stealc stealer
Stealc
Malware Config
C2 Extraction:
http://5.78.104.48/d130c39575999622.php
Unpacked files
SH256 hash:
ff8c24bce1eb009f0d5c47a09b96caf02726c285cea0d635082ad4da27e63d1b
MD5 hash:
9d6ec6072ee1814a4a01d1eb3fb67ba1
SHA1 hash:
d0b416de1c900b6bcb35dc182b2e8744f16c3289
Link:
https://www.unpac.me/results/b799ae13-40bd-40bd-a062-3989d9942260/
SH256 hash:
4ed77fc886d936040bac4b37c04978e33b05d3abbaade3d4c1e01cad09f1cfae
MD5 hash:
c671baf128ce330a5a9445533643c10e
SHA1 hash:
7cc32a49e2ab2f4fa32874e1195b9e14c46d83d4
Detections:
stealc
Create hunting rule
win_stealc_auto
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/b799ae13-40bd-40bd-a062-3989d9942260/
SH256 hash:
79b26b1a62aa0503ef506f4a1cc78c0bbff39760d1c657761be5a619c2322498
MD5 hash:
e378a71f10b74f8ccf87b53215862340
SHA1 hash:
2cda11984254e6fda39a1909a78b8c4b63a06619
Link:
https://www.unpac.me/results/b799ae13-40bd-40bd-a062-3989d9942260/
SH256 hash:
b7178573c2e0e321c549d07d474ca385d516675ade291cab6dbe2ebd222f46b2
MD5 hash:
81c4cdd52e9bafde6eb1d96e2ebf9e88
SHA1 hash:
76336e1d4cc21812b6226c6be8e1cd2fb097814c
Link:
https://www.unpac.me/results/b799ae13-40bd-40bd-a062-3989d9942260/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b7178573c2e0/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/b7178573c2e0e321c549d07d474ca385d516675ade291cab6dbe2ebd222f46b2

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:adonunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:AD on UNIX
Rule name:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/392239/

Comments