MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d. 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


DarkCloud


Vendor detections: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d
SHA3-384 hash: 7e06b7835d3a891a2905758f5ea2032f7b4bac3744497e395736b30770191c1300176fe61ccf1c7448f3ed9aad65ef60
SHA1 hash: 827c6445626378b87815d77cc42c213402b865ce
MD5 hash: 65cc58dbf78697dcacf70ae4be51173d
humanhash: gee-sierra-nebraska-sink
File name:transferencia interbancaria (BBVA).exe
Download: download sample
Signature DarkCloud
Create hunting rule
File size:347'648 bytes
First seen:2025-08-06 18:22:26 UTC
Last seen:2025-08-14 11:06:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:MoY54OLTpaH/pTdmxEztOq00LvjiQCtMsh0Qqzx4:y5BmpTdOEZOqNL5U0
Threatray 3 similar samples on MalwareBazaar
TLSH T153744954AB8CE6DEC0EE1375E262051DDB70C18EE68BF39B099BD5B42C437A1E4071A7
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter threatcat_ch
Tags:DarkCloud exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
46
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
transferencia interbancaria (BBVA).exe
Verdict:
Malicious activity
Analysis date:
2025-08-06 18:25:45 UTC
Tags:
auto-startup stealer evasion darkcloud upx
Link:
https://app.any.run/tasks/9413f92f-aa2f-4234-bc44-f3349a426d32

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/19284/
Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68939da91e8a59ee04e69891
Tags:
autorun virus micro msil
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
base64 obfuscated
Link:
https://www.filescan.io/uploads/68939da5397fd3ce6f9f9735/reports/447da7dd-87b0-4a28-b09a-647ce2604568/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ad358286-34fc-431f-b6e9-3bdf9c82d57f
Result
Threat name:
DarkCloud, PureLog Stealer, ResolverRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1751587
Signature
.NET source code contains potential unpacker
Drops VBS files to the startup folder
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected DarkCloud
Yara detected Generic Dropper
Yara detected PureLog Stealer
Yara detected ResolverRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1751587 Sample: transferencia interbancaria... Startdate: 06/08/2025 Architecture: WINDOWS Score: 100 28 www.arcon.com.pe 2->28 30 showip.net 2->30 32 arcon.com.pe 2->32 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected ResolverRAT 2->42 44 11 other signatures 2->44 8 wscript.exe 1 2->8         started        11 transferencia interbancaria (BBVA).exe 15 5 2->11         started        signatures3 process4 dnsIp5 48 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->48 50 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->50 15 TypeId.exe 14 2 8->15         started        36 arcon.com.pe 192.99.207.151, 443, 49691, 49694 OVHFR Canada 11->36 24 C:\Users\user\AppData\Roaming\TypeId.exe, PE32 11->24 dropped 26 C:\Users\user\AppData\Roaming\...\TypeId.vbs, ASCII 11->26 dropped 18 InstallUtil.exe 16 11->18         started        file6 signatures7 process8 dnsIp9 52 Multi AV Scanner detection for dropped file 15->52 54 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 15->54 21 InstallUtil.exe 14 15->21         started        34 showip.net 162.55.60.2, 49692, 49696, 80 ACPCA United States 18->34 56 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 18->56 signatures10 process11 signatures12 46 Tries to harvest and steal browser information (history, passwords, etc) 21->46
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable PE (Portable Executable) SOS: 0.37 Win 32 Exe x86
Link:
https://app.malva.re/file/65cc58dbf78697dcacf70ae4be51173d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d/
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Link:
https://tip.neiki.dev/file/35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2025-08-06 18:09:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gv3rwjllretoujtnqsrtirqyyodrvmhxgc4istexti73wr76rj6q._file
Verdict:
malicious
Label(s):
darkcloudstealer
Create hunting rule
Similar samples:
35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d
DarkCloud
d27254c6dff8ec2d0262ec8a302d740770c02c2cb012d82cfb1c15dfb2572805
DarkCloud
error
DarkCloud
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud discovery stealer
Link:
https://tria.ge/reports/250806-w1qkva1vh1/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
DarkCloud
Darkcloud family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7d0defdd-a49e-4ef1-9987-83fbc486fa11
Unpacked files
SH256 hash:
35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d
MD5 hash:
65cc58dbf78697dcacf70ae4be51173d
SHA1 hash:
827c6445626378b87815d77cc42c213402b865ce
Link:
https://www.unpac.me/results/1d477f9e-3ea8-4a88-9145-4add03f906a7/
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/35771b256b89/report/overview.html
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/35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

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

Malspam

DarkCloud

Executable exe 35771b256b8926ea266d84a3344618c3871ab0f730b8894c979a3fbb47fe8a7d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/19284/

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

Comments