MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 46091fc17ded829d91a0563354ca16ff416f6b92912ad7ddd39ff326d787299b. 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: 15


Intelligence 15 IOCs 1 YARA 22 File information Comments

SHA256 hash: 46091fc17ded829d91a0563354ca16ff416f6b92912ad7ddd39ff326d787299b
SHA3-384 hash: 510a8bab54802744aa79dfe2a8979094aaca71444a650922a466ea9784c9340b4e458f7a0012d96c75f317e7e9317644
SHA1 hash: d390e31eb79eb206e8cf285a52d48cdf970aadf8
MD5 hash: 2b83f1c2bb45c0937c532d1d22e23d45
humanhash: california-cat-iowa-lithium
File name:2B83F1C2BB45C0937C532D1D22E23D45.exe
Download: download sample
Signature AurotunStealer
File size:12'927'626 bytes
First seen:2025-07-20 17:35:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b5a014d7eeb4c2042897567e1288a095 (19 x HijackLoader, 14 x ValleyRAT, 12 x LummaStealer)
ssdeep 196608:Mp8JEBbCvpxeOe7tuwMpyrMgyd8/Y8Bgbj9LvNVMJN9zyg6Lxf9Xab:Mp6sKxeOe7tuwuyrL/Vubj9LQ6Lx4b
TLSH T1F6D6335A3AF44C76EB0005B1198C0BEB8074DBE67CB24E059F4A99545C3E63CB77BEA4
TrID 38.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
24.6% (.EXE) Win64 Executable (generic) (10522/11/4)
11.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.5% (.EXE) Win32 Executable (generic) (4504/4/1)
4.7% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 10d9e4564ce01824 (2 x AurotunStealer)
Reporter abuse_ch
Tags:AurotunStealer exe


Avatar
abuse_ch
AurotunStealer C2:
85.208.84.21:23675

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
85.208.84.21:23675 https://threatfox.abuse.ch/ioc/1558264/

Intelligence


File Origin
# of uploads :
1
# of downloads :
29
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2B83F1C2BB45C0937C532D1D22E23D45.exe
Verdict:
Malicious activity
Analysis date:
2025-07-20 17:37:47 UTC
Tags:
auto generic evasion aurotun stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
dropper virus spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Running batch commands
Searching for synchronization primitives
Launching a process
Searching for the window
Сreating synchronization primitives
Changing a file
Creating a process with a hidden window
Reading critical registry keys
Moving a recently created file
Replacing files
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context fingerprint installer microsoft_visual_cc overlay packed packed packer_detected
Result
Threat name:
Aurotun Stealer, HijackLoader, Meduza St
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Connects to many ports of the same IP (likely port scanning)
Drops PE files to the user root directory
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found many strings related to Crypto-Wallets (likely being stolen)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
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
Yara detected HijackLoader
Yara detected Meduza Stealer
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1740587 Sample: cpHbnh2nwa.exe Startdate: 20/07/2025 Architecture: WINDOWS Score: 100 77 api.ipify.org 2->77 91 Suricata IDS alerts for network traffic 2->91 93 Malicious sample detected (through community Yara rule) 2->93 95 Multi AV Scanner detection for dropped file 2->95 97 7 other signatures 2->97 11 cpHbnh2nwa.exe 10 2->11         started        14 VoSyn32.exe 5 2->14         started        signatures3 process4 file5 59 C:\Users\user\AppData\Local\...\mfc140u.dll, PE32 11->59 dropped 61 C:\Users\user\AppData\Local\...\VoSyn32.exe, PE32 11->61 dropped 63 C:\Users\user\AppData\...\VCRUNTIME140.dll, PE32 11->63 dropped 67 2 other malicious files 11->67 dropped 17 VoSyn32.exe 9 11->17         started        65 C:\Users\user\AppData\Local\...\4C87E43.tmp, PE32+ 14->65 dropped 117 Modifies the context of a thread in another process (thread injection) 14->117 119 Maps a DLL or memory area into another process 14->119 21 cmd.exe 2 14->21         started        23 XPFix.exe 14->23         started        25 LoScanner86.exe 14->25         started        signatures6 process7 file8 51 C:\ProgramData\Mp_wordpad5\mfc140u.dll, PE32 17->51 dropped 53 C:\ProgramData\Mp_wordpad5\VoSyn32.exe, PE32 17->53 dropped 55 C:\ProgramData\Mp_wordpad5\VCRUNTIME140.dll, PE32 17->55 dropped 57 2 other files (none is malicious) 17->57 dropped 87 Switches to a custom stack to bypass stack traces 17->87 89 Found direct / indirect Syscall (likely to bypass EDR) 17->89 27 VoSyn32.exe 9 17->27         started        31 conhost.exe 21->31         started        33 chrome.exe 21->33         started        signatures9 process10 file11 69 C:\Users\user\LoScanner86.exe, PE32+ 27->69 dropped 71 C:\Users\user\AppData\Local\Temp\3991DF.tmp, PE32+ 27->71 dropped 73 C:\ProgramData\Mp_wordpad5\XPFix.exe, PE32 27->73 dropped 109 Drops PE files to the user root directory 27->109 111 Modifies the context of a thread in another process (thread injection) 27->111 113 Found hidden mapped module (file has been removed from disk) 27->113 115 3 other signatures 27->115 35 LoScanner86.exe 5 27->35         started        39 cmd.exe 2 27->39         started        41 XPFix.exe 27->41         started        signatures12 process13 dnsIp14 79 85.208.84.21, 23675, 49705 PINDC-ASRU Russian Federation 35->79 81 api.ipify.org 104.26.13.205, 443, 49708, 49711 CLOUDFLARENETUS United States 35->81 83 127.0.0.1 unknown unknown 35->83 99 Found many strings related to Crypto-Wallets (likely being stolen) 35->99 101 Tries to harvest and steal browser information (history, passwords, etc) 35->101 103 Tries to steal Crypto Currency Wallets 35->103 107 3 other signatures 35->107 43 chrome.exe 2 39->43         started        46 conhost.exe 39->46         started        105 Switches to a custom stack to bypass stack traces 41->105 signatures15 process16 dnsIp17 85 192.168.2.6, 138, 23675, 443 unknown unknown 43->85 48 chrome.exe 43->48         started        process18 dnsIp19 75 www.google.com 142.251.35.164, 443, 49704 GOOGLEUS United States 48->75
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) SFX 7z Win 32 Exe x86
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2025-07-18 14:56:36 UTC
File Type:
PE (Exe)
Extracted files:
894
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Result
Malware family:
hijackloader
Score:
  10/10
Tags:
family:aurotun family:hijackloader campaign:checks credential_access discovery loader spyware stealer
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
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
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Aurotun
Aurotun family
Detects Aurotun stealer
Detects HijackLoader (aka IDAT Loader)
HijackLoader
Hijackloader family
Malware Config
C2 Extraction:
85.208.84.21:23675
Unpacked files
SH256 hash:
46091fc17ded829d91a0563354ca16ff416f6b92912ad7ddd39ff326d787299b
MD5 hash:
2b83f1c2bb45c0937c532d1d22e23d45
SHA1 hash:
d390e31eb79eb206e8cf285a52d48cdf970aadf8
SH256 hash:
6b50d8170cf8a17c348bee144dd7f4cf2701a07a3c14593aeb9fea3839046e4c
MD5 hash:
61f5d5f3139180d4c80e16d788528d12
SHA1 hash:
1a92c763661eca2664cd25e40550ada5e08568ac
SH256 hash:
1d7175c38a9e816d4c8c94c83e4ee4ff1ed0017f0e52c10059dff1aba0e7a398
MD5 hash:
9c4497d88d38d258c7a96af3d365aa18
SHA1 hash:
78db73708491694940996569107848f2fa7319cd
SH256 hash:
5fb5a2b10c230699352c0a6844b095a1e5f2e0257719a86eb21098b463a141d3
MD5 hash:
1bb1389279dceff2e39bceeecbb8cc44
SHA1 hash:
9cc07e3d0124fb67b4598c3949ac664fd8dc4b74
SH256 hash:
829b459720cf0d8c4b9bec0024cbe76690c5298eb5573636a0dd4269c0e7c14e
MD5 hash:
7ecc58f1cc4b21a29f78f47a7e28ee0f
SHA1 hash:
e48870153eaf5cec6a7c58133c08ab3be5870ce6
SH256 hash:
55568153ec4ef9e0ddc972468443857f065445be730469d9ba888c406faccb58
MD5 hash:
cdf1c21c56362bf1b7cd5423c9c5cfe0
SHA1 hash:
eeede776aca5c36aab70dbf5018f51ddef67487e
SH256 hash:
0823b2bf3fcc268f31281d520a29e8c0be43df4b2414c3023657f5257a9a103e
MD5 hash:
ebf678ed606696584c9252c051690e22
SHA1 hash:
5bf8a4854c17c75f6ae170ad7e6232ae8296d129
Detections:
win_samsam_auto
SH256 hash:
a6edb3fb6d21dd461da3767a7995034e208f7d6b08997f6cf7ee7b0ea833a8f0
MD5 hash:
cabb58bb5694f8b8269a73172c85b717
SHA1 hash:
9ed583c56385fed8e5e0757ddb2fdf025f96c807
SH256 hash:
68bee500e0080f21c003126e73b6d07804d23ac98b2376a8b76c26297d467abe
MD5 hash:
d4dae7149d6e4dab65ac554e55868e3b
SHA1 hash:
b3bea0a0a1f0a6f251bcf6a730a97acc933f269a
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:botnet_plaintext_c2
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
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:ICMLuaUtil_UACMe_M41
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:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Mimikatz_Generic
Author:Still
Description:attempts to match all variants of Mimikatz
Rule name:observer
Author:Michelle Khalil
Description:This rule detects unpacked observer malware samples.
Rule name:pe_detect_tls_callbacks
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:skip20_sqllang_hook
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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upxHook
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/
Rule name:WHIRLPOOL_Constants
Author:phoul (@phoul)
Description:Look for WhirlPool constants
Rule name:Windows_Trojan_GhostPulse_caea316b
Author:Elastic Security

File information


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

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
ole32.dll::CreateStreamOnHGlobal
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetDiskFreeSpaceExW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetSystemDirectoryW
KERNEL32.dll::GetFileAttributesW
KERNEL32.dll::FindFirstFileW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::CreateWindowExW

Comments