MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b842281e64924baa7c011501d7778075da412d66986e6aa65fd7d171cf074d70. 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


AurotunStealer


Vendor detections: 14


Intelligence 14 IOCs 1 YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b842281e64924baa7c011501d7778075da412d66986e6aa65fd7d171cf074d70
SHA3-384 hash: a27559f8e4a0fcb36c9985fde0826c74608f5490a067f49b1b4e8c19d03f9910b88482073566941ef0f711d1dba15e15
SHA1 hash: 21b4a10c2882d0436352f5de3367885a0aee31d7
MD5 hash: 77dfbea9acde3e940293ae5fc368d48c
humanhash: tennessee-eighteen-vegan-texas
File name:77dfbea9acde3e940293ae5fc368d48c.exe
Download: download sample
Signature AurotunStealer
Create hunting rule
File size:12'510'208 bytes
First seen:2025-07-18 05:30:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 89d69ee60e55dee42074de52767a98bf (19 x AurotunStealer)
ssdeep 196608:BPv86df8858iGxTMKIpuGo/xtQeVT0hbqbiEe:RvVV8858iGdMKIpuGo/xtQeVTdbiE
TLSH T1C3C69E6AB2BC00D9D47BC078CA9A9617E771741903F057DB269096EA2F23BD07E7B740
TrID 41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
26.1% (.EXE) Win64 Executable (generic) (10522/11/4)
12.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.1% (.ICL) Windows Icons Library (generic) (2059/9)
5.0% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter abuse_ch
Tags:AurotunStealer exe


Avatar
abuse_ch
AurotunStealer C2:
162.33.177.183:7712

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
162.33.177.183:7712 https://threatfox.abuse.ch/ioc/1556912/

Intelligence

File Origin
# of uploads :
1
# of downloads :
30
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
77dfbea9acde3e940293ae5fc368d48c.exe
Verdict:
Malicious activity
Analysis date:
2025-07-18 05:34:05 UTC
Tags:
aurotun stealer
Link:
https://app.any.run/tasks/376c6e59-af88-4d64-b671-da09821fe672

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/15147/
Detection(s):
Win.Malware.Lazy-10045325-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6879dc252f623871a5ef7ec4
Tags:
virus crypt smtp
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Setting a global event handler for the keyboard
Stealing user critical data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug crypto fingerprint microsoft_visual_cc obfuscated
Link:
https://www.filescan.io/uploads/6879dbf27bc45bdee1b09403/reports/3bc22740-1c0c-42a1-9b4d-785fd99465f9/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/b842281e64924baa7c011501d7778075da412d66986e6aa65fd7d171cf074d70
Malware family:
Aurotun
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5125274c-d4a7-4ed8-88c9-836b18531168
Result
Threat name:
Aurotun Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1739353
Signature
Antivirus / Scanner detection for submitted sample
Found many strings related to Crypto-Wallets (likely being stolen)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Potentially malicious time measurement code found
Suricata IDS alerts for network traffic
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Yara detected Aurotun Stealer
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b842281e64924baa7c011501d7778075da412d66986e6aa65fd7d171cf074d70
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) Win 64 Exe x64
Link:
https://app.malva.re/file/77dfbea9acde3e940293ae5fc368d48c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b842281e64924baa7c011501d7778075da412d66986e6aa65fd7d171cf074d70/
Threat name:
Win64.Trojan.AurotunStealer
Create hunting rule
Status:
Malicious
First seen:
2025-07-11 08:35:00 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xbbcqhtesjf2u7abcua5o54aoxnecllgtbxgvjs727ixdtyhjvya._file
Result
Malware family:
aurotun
Create hunting rule
Score:
  10/10
Tags:
family:aurotun campaign:se2 credential_access discovery spyware stealer
Link:
https://tria.ge/reports/250718-f7r49avqx7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Malware Config
C2 Extraction:
162.33.177.183:7712
Verdict:
Malicious
Tags:
Win.Malware.Lazy-10045325-0 External_IP_Lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/b845406f-7669-46b6-b094-d90675bd7294
Unpacked files
SH256 hash:
b842281e64924baa7c011501d7778075da412d66986e6aa65fd7d171cf074d70
MD5 hash:
77dfbea9acde3e940293ae5fc368d48c
SHA1 hash:
21b4a10c2882d0436352f5de3367885a0aee31d7
Link:
https://www.unpac.me/results/e3706c97-e45e-4136-a63a-325d9d8deca7/
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/b842281e64924baa7c011501d7778075da412d66986e6aa65fd7d171cf074d70

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:ICMLuaUtil_UACMe_M41
Create hunting rule
Author:Marius 'f0wL' Genheimer <hello@dissectingmalwa.re>
Description:A Yara rule for UACMe Method 41 -> ICMLuaUtil Elevated COM interface
Reference:https://github.com/hfiref0x/UACME
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Mimikatz_Generic
Create hunting rule
Author:Still
Description:attempts to match all variants of Mimikatz
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:skip20_sqllang_hook
Create hunting rule
Author:Mathieu Tartare <mathieu.tartare@eset.com>
Description:YARA rule to detect if a sqllang.dll version is targeted by skip-2.0. Each byte pattern corresponds to a function hooked by skip-2.0. If $1_0 or $1_1 match, it is probably targeted as it corresponds to the hook responsible for bypassing the authentication.
Reference:https://www.welivesecurity.com/
Rule name:upxHook
Create hunting rule
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/
Rule name:WHIRLPOOL_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for WhirlPool constants

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/15147/

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThreadpoolWait
KERNEL32.dll::CreateThreadpoolTimer
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetConsoleMode
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateDirectoryExW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::CreateFileMappingA
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptGenRandom
WIN_CRYPT_APIUses Windows Crypt APICRYPT32.dll::CertAddCertificateContextToStore
CRYPT32.dll::CertCreateCertificateChainEngine
CRYPT32.dll::CertEnumCertificatesInStore
CRYPT32.dll::CertFindCertificateInStore
CRYPT32.dll::CertFindExtension
CRYPT32.dll::CertFreeCertificateChainEngine
CRYPT32.dll::CertFreeCertificateChain
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegGetValueW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegSetValueExW
WIN_SOCK_APIUses Network to send and receive dataWS2_32.dll::freeaddrinfo
WS2_32.dll::getaddrinfo
WS2_32.dll::WSACloseEvent
WS2_32.dll::WSACreateEvent
WS2_32.dll::WSAEnumNetworkEvents
WS2_32.dll::WSAEventSelect

Comments