MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a728cfed9088c5998bed4370c090f8e39d1344bd5310e9fac4e43c4fdd15036e. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a728cfed9088c5998bed4370c090f8e39d1344bd5310e9fac4e43c4fdd15036e
SHA3-384 hash: a2a063b369f5152746530db3bf78d940ec30a6fab8486610b4662ca4e183d91063589ae9a83f21e07a7051498c9953a3
SHA1 hash: 1a8a49c0559e3842d17585602a9d073effb38920
MD5 hash: 25ba9db4ec0ecfa7798daa863c305984
humanhash: utah-california-coffee-winner
File name:Purchase Order Number F44YG5J.com
Download: download sample
Signature DarkCloud
Create hunting rule
File size:1'411'584 bytes
First seen:2025-04-28 18:17:02 UTC
Last seen:2025-05-09 14:45:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:tDpF05v215HXBBoX8Mj8tLlM+XUOEjdP5PtszdDSUvlCObs2iTT6Upx72Gp:tDo5WXBGwJlMwW5lszLlCObsDTTHpx7X
TLSH T1C06522182BEDC77AD5FE4EB9F45420848B3593B3E583EB139BC889F119037197A0217A
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter threatcat_ch
Tags:DarkCloud exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
475
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order Number F44YG5J.com
Verdict:
Malicious activity
Analysis date:
2025-04-28 16:08:47 UTC
Tags:
purecrypter netreactor stealer evasion
Link:
https://app.any.run/tasks/5c09bc1a-abf8-44e9-86be-cbca5ae1bd1a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DarkCloud
Create hunting rule
Link:
https://www.capesandbox.com/analysis/4780/
Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=680fcbd8c8b2e86d0ac3e973
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
entropy masquerade obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/680fc628212716475fb02482/reports/e026d4ef-81ee-4c82-89e2-5713c94b1008/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a728cfed9088c5998bed4370c090f8e39d1344bd5310e9fac4e43c4fdd15036e
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0b9dd752-db62-4273-a3c0-797439a1871e
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1676574
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Drops VBS files to the startup folder
Encrypted powershell cmdline option found
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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)
Uses ipconfig to lookup or modify the Windows network settings
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected DarkCloud
Yara detected Generic Dropper
Yara detected Telegram RAT
Yara Genericmalware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1676574 Sample: Purchase Order Number F44YG... Startdate: 28/04/2025 Architecture: WINDOWS Score: 100 63 showip.net 2->63 81 Found malware configuration 2->81 83 Malicious sample detected (through community Yara rule) 2->83 85 Antivirus detection for URL or domain 2->85 87 17 other signatures 2->87 9 Purchase Order Number F44YG5J.com.exe 6 2->9         started        13 wscript.exe 1 2->13         started        15 svchost.exe 1 1 2->15         started        signatures3 process4 dnsIp5 57 C:\Users\user\AppData\Roaming\po.exe, PE32 9->57 dropped 59 C:\Users\user\...\po.exe:Zone.Identifier, ASCII 9->59 dropped 61 C:\Users\user\AppData\Roaming\...\po.vbs, ASCII 9->61 dropped 89 Encrypted powershell cmdline option found 9->89 91 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->91 93 Writes to foreign memory regions 9->93 95 Injects a PE file into a foreign processes 9->95 18 powershell.exe 23 9->18         started        21 cmd.exe 1 9->21         started        23 InstallUtil.exe 15 9->23         started        26 cmd.exe 1 9->26         started        97 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->97 28 po.exe 3 13->28         started        67 127.0.0.1 unknown unknown 15->67 file6 signatures7 process8 dnsIp9 69 Loading BitLocker PowerShell Module 18->69 30 WmiPrvSE.exe 18->30         started        32 conhost.exe 18->32         started        71 Uses ipconfig to lookup or modify the Windows network settings 21->71 34 conhost.exe 21->34         started        36 ipconfig.exe 1 21->36         started        65 showip.net 162.55.60.2, 49703, 49712, 80 ACPCA United States 23->65 73 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 23->73 38 conhost.exe 26->38         started        40 ipconfig.exe 1 26->40         started        75 Multi AV Scanner detection for dropped file 28->75 77 Writes to foreign memory regions 28->77 79 Injects a PE file into a foreign processes 28->79 42 InstallUtil.exe 28->42         started        45 cmd.exe 28->45         started        47 cmd.exe 28->47         started        signatures10 process11 signatures12 99 Tries to harvest and steal browser information (history, passwords, etc) 42->99 49 conhost.exe 45->49         started        51 ipconfig.exe 45->51         started        53 conhost.exe 47->53         started        55 ipconfig.exe 47->55         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a728cfed9088c5998bed4370c090f8e39d1344bd5310e9fac4e43c4fdd15036e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a728cfed9088c5998bed4370c090f8e39d1344bd5310e9fac4e43c4fdd15036e/
Threat name:
ByteCode-MSIL.Trojan.Injuke
Create hunting rule
Status:
Malicious
First seen:
2025-04-28 11:01:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u4um73mqrdcztc7ninymbehy4oorgrf5kmiot6we4q6e7xivanxa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/250428-ww233svwfx/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Drops startup file
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ff7dd8a1-2c56-4643-94f1-e7991fbecd10
Unpacked files
SH256 hash:
a728cfed9088c5998bed4370c090f8e39d1344bd5310e9fac4e43c4fdd15036e
MD5 hash:
25ba9db4ec0ecfa7798daa863c305984
SHA1 hash:
1a8a49c0559e3842d17585602a9d073effb38920
Link:
https://www.unpac.me/results/203a778e-26b3-457d-959d-cb4dab3ab086/
SH256 hash:
007e6aa49071abea9a7e9fc4cc8d2034b03b3f006e8be28ab8e65a035b6e48b6
MD5 hash:
dab79c152f244bc88edea3c71a23a64d
SHA1 hash:
271ab60f11d27fd763a869c3834b0853d87681cd
Link:
https://www.unpac.me/results/203a778e-26b3-457d-959d-cb4dab3ab086/
SH256 hash:
a693de700919f7d7eb95d663765bb44ad0725f3c6425ee161b5f980d58989ac4
MD5 hash:
8a6cf03717e609c346a59fb1b0a440ba
SHA1 hash:
669d14416ed9a798675813e3ae4ffba4d674bde9
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/203a778e-26b3-457d-959d-cb4dab3ab086/
SH256 hash:
77e7f11c4fe7ded9b417fb4c94b6313a10ecc026945b9a12d564c5809c536741
MD5 hash:
1e2d3eb7100ce6b3318000e2e63354d3
SHA1 hash:
6b0b7008669ca273e1b8955ff7ddd685a512757f
Link:
https://www.unpac.me/results/203a778e-26b3-457d-959d-cb4dab3ab086/
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/a728cfed9088c5998bed4370c090f8e39d1344bd5310e9fac4e43c4fdd15036e

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:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
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_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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.

Malspam

DarkCloud

7z 93fb228c5deaa56ee83cdb754ca898bb662182d820322be7adfd581fe31a8eda

DarkCloud

Executable exe a728cfed9088c5998bed4370c090f8e39d1344bd5310e9fac4e43c4fdd15036e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/4780/
  
Dropped by
SHA256 93fb228c5deaa56ee83cdb754ca898bb662182d820322be7adfd581fe31a8eda
  
Dropped by
MD5 1de28decb646ca8c622293a3cb273076

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