MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f. 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


Arechclient2


Vendor detections: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f
SHA3-384 hash: fb02cd9ff9eee8d1c4c8f67c58f3782b42e614eb166ecf079ea7c0c99bcf6eee28b869407f5ae6c8df6756ed8f633ba4
SHA1 hash: da8942dc9ec3e5e8c290f494abbea8146abb1a10
MD5 hash: 42bd1abbe27c654c85662ff833279c1b
humanhash: victor-stream-alaska-pluto
File name:Microsoft.WITDataStore32.dll
Download: download sample
Signature Arechclient2
Create hunting rule
File size:536'136 bytes
First seen:2026-02-03 15:19:02 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 94eef47f5cccd8f1a5335a319d43d815 (1 x Rhadamanthys, 1 x Arechclient2)
ssdeep 6144:TeiXtrULwoMLjFzGo5yX9/NYODkGCYPjPWWfEIVI8lpDnSenZVax1v+tlYn7Wt+0:Te8UMPRGuzKEp5OS+dOmF8/M9F
TLSH T18FB43D00F2C6D1A5E89F02B91BF8F160945975718B3CA1D7B6C89E9F6F905C32E369C2
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter aachum
Tags:Arechclient2 dll dropped-by-ACRStealer HIjackLoader IDATLoader SectopRAT


Avatar
iamaachum
http://109.107.165.95/Package.zip

Intelligence

File Origin
# of uploads :
1
# of downloads :
117
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/51506/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6982118c183032faf3eef73c
Tags:
injection dropper obfusc
Result
Verdict:
Clean
Maliciousness:

Behaviour
DNS request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug expired-cert invalid-signature microsoft_visual_cc signed
Link:
https://www.filescan.io/uploads/69821217981ff1d38a46a63a/reports/61e48475-59d4-42bf-98b0-99b11c9ee762/overview
Verdict:
Suspicious
Labled as:
Infostealer/ACRStealer
Link:
https://www.hybrid-analysis.com/sample/efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f
Verdict:
Malicious
File Type:
dll x32
First seen:
2026-02-03T02:00:00Z UTC
Last seen:
2026-02-03T03:10:00Z UTC
Hits:
~10
Detections:
Trojan.Win64.DLLhijack.cii
Link:
https://opentip.kaspersky.com/efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/ea1ecf03-2d10-4c36-b57c-10277e86dbcc
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1862519
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1862519 Sample: Microsoft.WITDataStore32.dll Startdate: 03/02/2026 Architecture: WINDOWS Score: 48 28 Multi AV Scanner detection for submitted file 2->28 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 17 other processes 8->16 process5 18 rundll32.exe 10->18         started        20 WerFault.exe 16 12->20         started        22 WerFault.exe 16 14->22         started        24 WerFault.exe 16 16->24         started        process6 26 WerFault.exe 20 18 18->26         started       
Score:
0%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f/
Verdict:
Clean
Link:
https://tip.neiki.dev/file/efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=57rcpbhs6pjjbk7r2m3qz4peokjwk7cjnmoy4oaehuznk4ajnf7q._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/260203-sqlblags2f/
Behaviour
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Unpacked files
SH256 hash:
efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f
MD5 hash:
42bd1abbe27c654c85662ff833279c1b
SHA1 hash:
da8942dc9ec3e5e8c290f494abbea8146abb1a10
Link:
https://www.unpac.me/results/68d3b066-222d-4639-a1ef-266b1b9cba5d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Web download

Arechclient2

zip 689be8e10a1e850a62de80bf6c2038c1de09d41bb14a2e1a299b1a0d47e88900

Arechclient2

DLL dll efe22784f2f3d290abf1d3370cf1e47293657c496b1d8e38043d32d57009697f

(this sample)

  
Dropped by
SHA256 689be8e10a1e850a62de80bf6c2038c1de09d41bb14a2e1a299b1a0d47e88900
  
Delivery method
Distributed via web download
  
Dropped by
MD5 10c621072b59ffed6c9b405c6b15823c
Cape
Cape
https://www.capesandbox.com/analysis/51506/

Comments