MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3. 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: 14


Intelligence 14 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3
SHA3-384 hash: 112273ac81417e72ce2cd52de2fdd6a3200f38af33aa6685c93f440f63f8ff37d26f9e5f3cc6b707ca6eb8d1d6b167c5
SHA1 hash: 86a5846c44adcc3bc726e54d57b0418e76f2c91f
MD5 hash: b3efb49537be29159b44776e18c2900c
humanhash: shade-sixteen-robert-blossom
File name:file
Download: download sample
Signature DonutLoader
Create hunting rule
File size:2'448'384 bytes
First seen:2025-12-14 17:05:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d42595b695fc008ef2c56aabd8efd68e (124 x Vidar, 92 x Rhadamanthys, 51 x Stealc)
ssdeep 24576:b+Tpw/fE/dwa9dfFOA8EP9ZePudL+VsljtH+QzjKv9GmcoeleTNj4HGu2U+cVTF0:b+TqHEaa9RFTvTTdiVA27Um1
Threatray 1'959 similar samples on MalwareBazaar
TLSH T1DBB56B0BFCA218FAC0A9A23189765196BB61BC452F3123D73E90B3782F72BE05D75754
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Bitsight
Tags:donutloader dropped-by-amadey exe fbf543


Avatar
Bitsight
url: http://178.16.55.189/files/6637448968/sWTk4PU.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
144
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
_91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3.exe
Verdict:
Malicious activity
Analysis date:
2025-12-14 17:08:37 UTC
Tags:
stealer golang
Link:
https://app.any.run/tasks/7869e077-a797-4484-8f40-006d7a80bbe4

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/44631/
Detection(s):
Win.Malware.Wingo-10058333-0
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=693eee86838ad7e48539373e
Tags:
malware
Verdict:
Malicious
Labled as:
WinGo/ShellcodeRunner.UG trojan
Link:
https://www.hybrid-analysis.com/sample/91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-12-14T14:13:00Z UTC
Last seen:
2025-12-14T18:44:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Vidar.HTTP.C&C Trojan.Win64.DonutInjector.sb Trojan.Win64.Donut.sb Trojan.Win64.Agentb.sb Trojan.Win32.Shellcode.sb Trojan.Win32.Shellcode.jmq PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/301356f9-634f-4ce9-94c1-5204d532f3ae
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/b3efb49537be29159b44776e18c2900c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3/
Verdict:
Malicious
Threat:
Trojan.Win64.Donut
Link:
https://tip.neiki.dev/file/91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3
Threat name:
Win64.Trojan.ShellcodeRunner
Create hunting rule
Status:
Malicious
First seen:
2025-12-14 17:06:15 UTC
File Type:
PE+ (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shy45s5wttpfkp6t45kwokv6mqlr5u3unimg4cgud6kbli7y2xjq._file
Verdict:
malicious
Label(s):
donutloader
Create hunting rule
maskgramstealer
Create hunting rule
Similar samples:
2229d93f6a97610c642b07f6849510b6e72ac3d19ce60f13bf3df253ab7e1cf2
DonutLoader
50419b6ae38000b3d639e462f69bb35ff167650ca8eff6eb35dcfbd38b08c393
DonutLoader
64e714b6db5a170d195cf7f5ce40a50e0ecf4b59d591fbc4cf282ca37496c952
DonutLoader
8201551520d88da852863c340230da37feff7e3f0a99d983c29baf315af37a49
DonutLoader
9dcfd6ad92ba2a0b05036cec9696abd6b8ff922c8694723aa07790f08ae50495
DonutLoader
c5b2b190d18f40051c5697746b21252cf14894ba10ae6e3e007e6f5ed4b31dfe
DonutLoader
d0459a84ffc9b6f7eeb627e90b1879e8d1e477baff9db93dde2568c6100b6b3e
DonutLoader
ddad07b34bc5dfd040d211a8b0c47efe0949aa6ac1aa92b7c2977b1402683d2c
DonutLoader
error
DonutLoader
fb1b756f092782f4da06167ba050946c5167c49330ce0781946162239932fba5
DonutLoader
+ 1'949 additional samples on MalwareBazaar
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader discovery loader spyware stealer
Link:
https://tria.ge/reports/251214-vmg6wahm8s/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads WinSCP keys stored on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Detects DonutLoader
DonutLoader
Donutloader family
Verdict:
Suspicious
Tags:
Suspicious_POST_body
YARA:
n/a
Link:
https://app.threat.zone/submission/6cca0142-50e8-4c24-906a-ced485d41bac
Unpacked files
SH256 hash:
91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3
MD5 hash:
b3efb49537be29159b44776e18c2900c
SHA1 hash:
86a5846c44adcc3bc726e54d57b0418e76f2c91f
Link:
https://www.unpac.me/results/0ebf770a-328f-4688-a532-2f98075ade92/
Malware family:
DonutLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91f1cecbb69c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.98
Link:
https://yomi.yoroi.company/submissions/91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:golang_duffcopy_amd64
Create hunting rule
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

DonutLoader

Executable exe 91f1cecbb69cde553fd3e755672abe64171ed3746a186e08d41f9415a3f8d5d3

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3733623/
Cape
Cape
https://www.capesandbox.com/analysis/44631/

Comments