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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a605ea9348170c525106d564fc187bf428fd6564fdabe14a2a77591119ea56cd. 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


DonutLoader


Vendor detections: 12


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

SHA256 hash: a605ea9348170c525106d564fc187bf428fd6564fdabe14a2a77591119ea56cd
SHA3-384 hash: bf0789d4ba83052750f18b9c3bc456a9045122477a50c06a4dc897af6eac5e75ec0052d0c083cb593629075d22980313
SHA1 hash: 273939b86e6b9a940e770e5187ca7dc4adcfb962
MD5 hash: 2acf860a725a9e6d6ce45594a9b6a7f4
humanhash: tennessee-mississippi-cold-louisiana
File name:Nexloop_Dekstop.v0.7.exe
Download: download sample
Signature DonutLoader
Create hunting rule
File size:24'847'784 bytes
First seen:2025-06-05 08:25:59 UTC
Last seen:2025-06-05 08:37:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 573bb7b41bc641bd95c0f5eec13c233b (66 x GuLoader, 32 x AgentTesla, 31 x RemcosRAT)
ssdeep 393216:TxB4lmt14sRdjmq5aGzwa3JpmJLczgU67KOvD/a2ilBqBsaWueMIPela:TX4lWdjdYqwEJpmJLczgHD/adOBsFue5
TLSH T1F44733E0242605E3F7B880F454B20F9AB91D1EA4AF3F4E368AF5BE843B4796C4D97115
TrID 37.3% (.EXE) Win64 Executable (generic) (10522/11/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 6896716969719668 (2 x DonutLoader)
Reporter skocherhan
Tags:donutloader exe LLC-CiTyAr-GROUP opendir signed

Code Signing Certificate

Organisation:LLC CiTyAr GROUP
Issuer:GlobalSign GCC R45 EV CodeSigning CA 2020
Algorithm:sha256WithRSAEncryption
Valid from:2025-05-06T14:07:24Z
Valid to:2026-05-07T14:07:24Z
Serial number: 7cc47a19b9258f9a884585c5
Intelligence: 8 malware samples on MalwareBazaar are signed with this code signing certificate
MalwareBazaar Blocklist:This certificate is on the MalwareBazaar code signing certificate blocklist (CSCB)
Cert Graveyard Blocklist:This certificate is on the Cert Graveyard blocklist
Thumbprint Algorithm:SHA256
Thumbprint: f7bb934d892515746dea53ab10f0b56e791089ee45c088c506571aea8628b04b
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
skocherhan
https://zoom-conference.pro/Nexloop_Dekstop.v0.7.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
429
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Nexloop_Dekstop.v0.7.exe
Verdict:
Malicious activity
Analysis date:
2025-06-05 08:28:55 UTC
Tags:
python arch-exec arch-doc
Link:
https://app.any.run/tasks/2b42d9c4-8912-4b7a-aafd-94fcbeda58ba

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/7434/
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.23200.21301.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6841571607b5e8c1cfe4d5e4
Tags:
n/a
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Creating a file
Creating a process from a recently created file
Delayed reading of the file
Running batch commands
Creating a process with a hidden window
Launching a process
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
adaptive-context blackhole installer microsoft_visual_cc overlay signed
Link:
https://www.filescan.io/uploads/684154e52d1d8b12425ed156/reports/ae8b022d-2357-4006-b315-4a091457defd/overview
Verdict:
Malicious
Labled as:
Gen_Variant_Nemesis_43038
Link:
https://www.hybrid-analysis.com/sample/a605ea9348170c525106d564fc187bf428fd6564fdabe14a2a77591119ea56cd
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad.troj
Score:
57 / 100
Link:
https://www.joesandbox.com/analysis/1706968
Signature
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Sigma detected: Add file from suspicious location to autostart registry
Sigma detected: Files With System Process Name In Unsuspected Locations
Uses cmd line tools excessively to alter registry or file data
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1706968 Sample: Nexloop_Dekstop.v0.7.exe Startdate: 05/06/2025 Architecture: WINDOWS Score: 57 72 download.sftp-api-group-wechat.com 2->72 76 Multi AV Scanner detection for submitted file 2->76 78 Sigma detected: Add file from suspicious location to autostart registry 2->78 80 Joe Sandbox ML detected suspicious sample 2->80 82 Sigma detected: Files With System Process Name In Unsuspected Locations 2->82 9 Nexloop_Dekstop.v0.7.exe 95 2->9         started        12 cmd.exe 2->12         started        15 cmd.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 file5 64 C:\Users\user\AppData\Local\...\WmiPrvSE.exe, PE32 9->64 dropped 66 C:\Users\user\AppData\Local\...\LICENSE.txt, data 9->66 dropped 68 C:\Users\user\AppData\Local\...\System.dll, PE32 9->68 dropped 70 67 other files (none is malicious) 9->70 dropped 19 WmiPrvSE.exe 2 9->19         started        21 pythonw.exe 2 9->21         started        86 Uses cmd line tools excessively to alter registry or file data 12->86 24 conhost.exe 12->24         started        26 reg.exe 1 12->26         started        36 2 other processes 15->36 28 WMIC.exe 1 17->28         started        30 WMIC.exe 1 17->30         started        32 conhost.exe 17->32         started        34 conhost.exe 17->34         started        signatures6 process7 dnsIp8 38 cmd.exe 1 19->38         started        41 cmd.exe 1 19->41         started        43 cmd.exe 1 19->43         started        74 download.sftp-api-group-wechat.com 104.21.52.155, 443, 49754, 49755 CLOUDFLARENETUS United States 21->74 45 cmd.exe 1 21->45         started        process9 signatures10 84 Uses cmd line tools excessively to alter registry or file data 38->84 47 WMIC.exe 1 38->47         started        50 conhost.exe 38->50         started        52 conhost.exe 41->52         started        54 reg.exe 1 41->54         started        56 conhost.exe 43->56         started        58 reg.exe 1 1 43->58         started        60 WMIC.exe 1 45->60         started        62 conhost.exe 45->62         started        process11 signatures12 88 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 47->88 90 Queries memory information (via WMI often done to detect virtual machines) 47->90
Score:
30%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/a605ea9348170c525106d564fc187bf428fd6564fdabe14a2a77591119ea56cd
Gathering data
Threat name:
Win32.Malware.Nemesis
Create hunting rule
Status:
Malicious
First seen:
2025-05-27 12:15:37 UTC
File Type:
PE (Exe)
Extracted files:
3328
AV detection:
6 of 38 (15.79%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uyc6ve2ic4gfeuig2vspygd36qup2zle7wv6csrko5mrcgpkk3gq._file
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader discovery execution linux loader persistence spyware
Link:
https://tria.ge/reports/250605-kchpjsep4v/
Behaviour
Checks processor information in registry
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Detects DonutLoader
DonutLoader
Donutloader family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/365c4764-25c8-4d8d-8cb9-3c31862c37bf
Malware family:
Stealc.v2
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a605ea934817/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/a605ea9348170c525106d564fc187bf428fd6564fdabe14a2a77591119ea56cd

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:epsilon
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked epsilon malware samples.
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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)
Rule name:upxHook
Create hunting rule
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/
Rule name:win_rat_generic
Create hunting rule
Author:Reedus0
Description:Rule for detecting generic RAT malware

File information

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

Web download

DonutLoader

Executable exe a605ea9348170c525106d564fc187bf428fd6564fdabe14a2a77591119ea56cd

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/7434/
  
URLhaus
https://urlhaus.abuse.ch/url/3558461/
  
Delivery method
Distributed via web download

Comments