MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08a7c790e073a1d32397cd00e2c4404fec77f09170b31e0ed38f6b113344ca9f. 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



ACRStealer


Vendor detections: 6


Intelligence 6 IOCs YARA 8 File information Comments

SHA256 hash: 08a7c790e073a1d32397cd00e2c4404fec77f09170b31e0ed38f6b113344ca9f
SHA3-384 hash: eb5278e86d720e14477e143dd7846ce08f2a606bc7d83b483a3f800bc31ea9fd1c24b180a2044cbf7f83e698b9d848bf
SHA1 hash: 48680de1822d105ab5fc6fbeee9c902802217ac8
MD5 hash: 699e055fc19e3a68e0a6bde3a95d4a69
humanhash: bluebird-friend-cold-alpha
File name:Up.dll
Download: download sample
Signature ACRStealer
File size:603'376 bytes
First seen:2025-07-10 11:58:50 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 6e0d36f5ebd5b5226c824e12dbf61fbf (5 x ACRStealer)
ssdeep 12288:XqyuMOuCr45sYE6/jBiogAzJ72lVN6ElP17DO+FIN3MLSLqkvqg6c1ysDDZ+3y/u:ayJxDoAl2lfSe1VwIPsI7OBW7D
TLSH T112D45C23BA01E021E59900746679FBB7A4ACBD357B5599E7B3804F22D8705F33A34E27
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter aachum
Tags:ACRStealer Arechclient2 dll HIjackLoader IDATLoader SectopRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
52
Origin country :
CZ CZ
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context fingerprint invalid-signature lolbin microsoft_visual_cc obfuscated signed wmic
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
52 / 100
Signature
AI detected suspicious PE digital signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1732770 Sample: Up.dll Startdate: 10/07/2025 Architecture: WINDOWS Score: 52 28 Multi AV Scanner detection for submitted file 2->28 30 AI detected suspicious PE digital signature 2->30 8 loaddll32.exe 1 2->8         started        process3 process4 10 cmd.exe 1 8->10         started        12 rundll32.exe 8->12         started        14 rundll32.exe 8->14         started        16 3 other processes 8->16 process5 18 rundll32.exe 1 10->18         started        20 WerFault.exe 16 12->20         started        22 WerFault.exe 28 17 14->22         started        24 WerFault.exe 16 16->24         started        process6 26 WerFault.exe 20 16 18->26         started       
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) Win 32 Exe x86
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2025-07-09 13:29:57 UTC
File Type:
PE (Dll)
Extracted files:
11
AV detection:
12 of 23 (52.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Behaviour
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
08a7c790e073a1d32397cd00e2c4404fec77f09170b31e0ed38f6b113344ca9f
MD5 hash:
699e055fc19e3a68e0a6bde3a95d4a69
SHA1 hash:
48680de1822d105ab5fc6fbeee9c902802217ac8
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:Check_OutputDebugStringA_iat
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_detect_tls_callbacks
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

Web download

ACRStealer

DLL dll 08a7c790e073a1d32397cd00e2c4404fec77f09170b31e0ed38f6b113344ca9f

(this sample)

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 (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CreateStreamOnHGlobal
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdipDeleteGraphics
gdiplus.dll::GdipDeleteBrush
gdiplus.dll::GdipAlloc
gdiplus.dll::GdipCreateFromHDC
gdiplus.dll::GdipCreateSolidFill
KERNEL_APIManipulates Windows Kernel & Driversntdll.dll::RtlInitUnicodeString
ntdll.dll::ZwClose
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
WINHTTP.dll::WinHttpCloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::DeleteVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileMappingW
ntdll.dll::ZwCreateFile
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpAddRequestHeaders
WINHTTP.dll::WinHttpConnect
WINHTTP.dll::WinHttpCrackUrl
WINHTTP.dll::WinHttpOpenRequest
WINHTTP.dll::WinHttpOpen
WINHTTP.dll::WinHttpQueryDataAvailable
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegLoadKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegOpenKeyA
ADVAPI32.dll::RegOpenKeyW
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryInfoKeyW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::EmptyClipboard
USER32.dll::FindWindowW
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExW

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