MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5c81dcd6c3824436c1997ed858bf562e5d97584d14a88269f1553d211cdd9e15. 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: 12


Intelligence 12 IOCs YARA 27 File information Comments

SHA256 hash: 5c81dcd6c3824436c1997ed858bf562e5d97584d14a88269f1553d211cdd9e15
SHA3-384 hash: 277a8002186f0636b1e2b19ebb2538a2c885f7dd0cce3dec1e12d26bf08fce5c8fa818357ccea838bf588ef63914f1ed
SHA1 hash: 03f98bc79d7c5791dee13b8d6fc3e31e0a7a9dfb
MD5 hash: 07bf0f71eed01ddaa3fa4ad486748188
humanhash: two-idaho-mexico-west
File name:Win_Driver_SSL_support_v43.22.209.44.exe
Download: download sample
Signature ACRStealer
File size:9'787'040 bytes
First seen:2026-03-20 08:03:50 UTC
Last seen:2026-03-20 08:44:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5e92bfd51c257abe46ca2939646e3725 (1 x ACRStealer)
ssdeep 98304:yGWJbIv94wtGize2u1qOC0y8SO7ytPOy/dfGoAA37CFtK4D4:yGWJsnV2qOYhrhdfGoAmm
TLSH T1EDA69C51F6D1AC53D816C273C9DF93AE723462007B17CB87F68C3B64AB667C01E66A06
TrID 32.6% (.EXE) InstallShield setup (43053/19/16)
31.5% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
12.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
4.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.9% (.EXE) Win64 Executable (generic) (6522/11/2)
Magika pebin
Reporter abuse_ch
Tags:ACRStealer coastal-dwindlingoverlord-com exe fc-denmap-cfd uuaa-faser-tech-info verification-google

Intelligence


File Origin
# of uploads :
2
# of downloads :
141
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
_5c81dcd6c3824436c1997ed858bf562e5d97584d14a88269f1553d211cdd9e15.exe
Verdict:
Malicious activity
Analysis date:
2026-03-20 08:06:19 UTC
Tags:
stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Verdict:
Malicious
Score:
97.4%
Tags:
shellcode injection vmdetect obfusc
Result
Verdict:
Clean
Maliciousness:

Behaviour
Adding an access-denied ACE
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm anti-vm base64 crypto disk evasive expand explorer fingerprint fingerprint fingerprint genheur installer-heuristic invalid-signature lolbin mingw overlay packed signed soft-404
Verdict:
Malicious
File Type:
exe x32
Detections:
Trojan.Win32.Shelma.chsg Trojan.Win32.Shelma.sb
Result
Threat name:
ACR Stealer, Amatera Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Contains functionality to hide a thread from the debugger
Creates a thread in another existing process (thread injection)
Found direct / indirect Syscall (likely to bypass EDR)
Found many strings related to Crypto-Wallets (likely being stolen)
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected ACR Stealer
Yara detected Amatera Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1886753 Sample: Win_Driver_SSL_support_v43.... Startdate: 20/03/2026 Architecture: WINDOWS Score: 100 20 ld.uptakeplausibly.cfd 2->20 22 repost.optico-voda.info 2->22 24 4 other IPs or domains 2->24 34 Suricata IDS alerts for network traffic 2->34 36 Antivirus detection for URL or domain 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 3 other signatures 2->40 8 Win_Driver_SSL_support_v43.22.209.44.exe 1 2->8         started        signatures3 process4 dnsIp5 26 ld.uptakeplausibly.cfd 104.21.22.135, 443, 49696, 49697 CLOUDFLARENETUS United States 8->26 42 Found many strings related to Crypto-Wallets (likely being stolen) 8->42 44 Tries to harvest and steal browser information (history, passwords, etc) 8->44 46 Writes to foreign memory regions 8->46 48 8 other signatures 8->48 12 powershell.exe 14 16 8->12         started        16 chrome.exe 8->16         started        signatures6 process7 dnsIp8 28 api.github.com 140.82.114.5, 443, 49713, 49717 GITHUBUS United States 12->28 30 registry.npmjs.org 104.16.11.34, 443, 49714 CLOUDFLARENETUS United States 12->30 32 3 other IPs or domains 12->32 50 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->50 52 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 12->52 54 Found suspicious powershell code related to unpacking or dynamic code loading 12->54 56 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 12->56 18 conhost.exe 12->18         started        signatures9 process10
Gathering data
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2026-03-20 00:57:24 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_053
Similar samples:
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
5c81dcd6c3824436c1997ed858bf562e5d97584d14a88269f1553d211cdd9e15
MD5 hash:
07bf0f71eed01ddaa3fa4ad486748188
SHA1 hash:
03f98bc79d7c5791dee13b8d6fc3e31e0a7a9dfb
SH256 hash:
5747a0d87c2b7b0d08987d2deaa20364a3119dfecb6458f9debbfed23cb7a4c6
MD5 hash:
da5db316be8e2c1216a3d03890947f02
SHA1 hash:
febb2d9e97380d318161b9678b011e515edf2c1f
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:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:HeavensGate
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:ldpreload
Author:xorseed
Reference:https://stuff.rop.io/
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:ProgramLanguage_Rust
Author:albertzsigovits
Description:Application written in Rust programming language
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:Rooter
Author:Seth Hardy
Description:Rooter
Rule name:RooterStrings
Author:Seth Hardy
Description:Rooter Identifying Strings
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:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:WHIRLPOOL_Constants
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.

Web download

ACRStealer

Executable exe 5c81dcd6c3824436c1997ed858bf562e5d97584d14a88269f1553d211cdd9e15

(this sample)

  
Delivery method
Distributed via web download

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