MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b991373097d4ef003e63cdee99b2d2cedf4ee1cf866833f488da55bdc55ffd33. 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


Threat unknown


Vendor detections: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b991373097d4ef003e63cdee99b2d2cedf4ee1cf866833f488da55bdc55ffd33
SHA3-384 hash: 0c1ab48a719a663c48746d1437f60091c62794bcc91f3b836536e7515721f6397ea46c7673bba598143b8a215c251f51
SHA1 hash: f07256ab77fe38ab91378762aad6e7dfc40b1d69
MD5 hash: 3215bc0d9c19e3bbb431956ee75fcda3
humanhash: march-floor-music-video
File name:svchost.exe
Download: download sample
File size:1'259'084 bytes
First seen:2025-11-23 09:29:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ee98eef4340fdc659d6537f8155633ef (4 x Simda, 1 x Shiz)
ssdeep 24576:+YhBVnFys7wuVW2r/ku73hUSkwgOglRQq/0cYRYhBfYP1iKCoVRHcnw:+YhQs7tW2zku73bFgVlRlbN015CoVhew
TLSH T1624533282B527F9CFFBE9FB5C2095E151DA053C54F2EF8107A987C9293A1593F8A9130
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.5% (.EXE) Win32 Executable (generic) (4504/4/1)
8.4% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Hexastrike
Tags:exe UPX
File size (compressed) :1'259'084 bytes
File size (de-compressed) :1'310'284 bytes
Format:win32/pe
Unpacked file: 780b831e855e4fb01ae9e8f467829c1b7cf1626691116ffa07a3e8ddb605aeaf

Intelligence

File Origin
# of uploads :
1
# of downloads :
20
Origin country :
IE IE
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/40796/
Detection(s):
Win.Trojan.Ulise-10005646-0
Create hunting rule

Win.Trojan.Agent-1392566
Create hunting rule

SecuriteInfo.com.Win64.MalwareX-gen.31458.12546.UNOFFICIAL
Create hunting rule

Win.Trojan.Agent-231294
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the Windows subdirectories
Creating a file in the Windows directory
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Launching a process
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun with the shell\open\command registry branches
Enabling autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypt fingerprint overlay overlay packed packed packed packed upx
Link:
https://www.filescan.io/uploads/6922df4af96b58f0dc80b6f2/reports/f596c02d-7199-46e3-9083-78cc6779def4/overview
Verdict:
Malicious
Labled as:
Trojan.Malware.Generic
Link:
https://www.hybrid-analysis.com/sample/b991373097d4ef003e63cdee99b2d2cedf4ee1cf866833f488da55bdc55ffd33
Result
Gathering data
Score:
92%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b991373097d4ef003e63cdee99b2d2cedf4ee1cf866833f488da55bdc55ffd33
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/3215bc0d9c19e3bbb431956ee75fcda3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b991373097d4ef003e63cdee99b2d2cedf4ee1cf866833f488da55bdc55ffd33/
Threat name:
Win32.Trojan.Malex
Create hunting rule
Status:
Malicious
First seen:
2025-11-22 21:38:19 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
34 of 36 (94.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xgitomex2txqaptdzxxjtmwsz3pu5yopqzudh5ei3jk33rk77uzq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery persistence upx
Link:
https://tria.ge/reports/251123-mbrl6syqcl/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
UPX packed file
Adds Run key to start application
Executes dropped EXE
Modifies system executable filetype association
Boot or Logon Autostart Execution: Active Setup
Verdict:
Malicious
Tags:
Win.Trojan.Ulise-10005646-0
YARA:
n/a
Link:
https://app.threat.zone/submission/7d2c21c1-011c-428a-a7c1-75e8b98caf81
Unpacked files
SH256 hash:
3d2c5390eae99ff050c883eb8fc016effa71a2a05e3044fc6f766f4e5b7b2a1a
MD5 hash:
aeb7ca1c72fe15979eb21805327e54a4
SHA1 hash:
a0ea3de50606d427c222c9fc02878e905212f943
Link:
https://www.unpac.me/results/dfce376f-ce5c-47f0-995c-9e39e69eef35/
SH256 hash:
780b831e855e4fb01ae9e8f467829c1b7cf1626691116ffa07a3e8ddb605aeaf
MD5 hash:
ac469ab669348ebeb7009d6616c03ded
SHA1 hash:
b0e29a693b2d105c092df1bed73005c9fc43f7c6
Link:
https://www.unpac.me/results/dfce376f-ce5c-47f0-995c-9e39e69eef35/
SH256 hash:
b991373097d4ef003e63cdee99b2d2cedf4ee1cf866833f488da55bdc55ffd33
MD5 hash:
3215bc0d9c19e3bbb431956ee75fcda3
SHA1 hash:
f07256ab77fe38ab91378762aad6e7dfc40b1d69
Link:
https://www.unpac.me/results/dfce376f-ce5c-47f0-995c-9e39e69eef35/
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/b991373097d4ef003e63cdee99b2d2cedf4ee1cf866833f488da55bdc55ffd33

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:UPX290LZMAMarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9

File information

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

Executable exe b991373097d4ef003e63cdee99b2d2cedf4ee1cf866833f488da55bdc55ffd33

(this sample)

Executable exe 780b831e855e4fb01ae9e8f467829c1b7cf1626691116ffa07a3e8ddb605aeaf

Cape
Cape
https://www.capesandbox.com/analysis/40796/
  
Dropping
SHA256 780b831e855e4fb01ae9e8f467829c1b7cf1626691116ffa07a3e8ddb605aeaf
  
Dropping
MD5 ac469ab669348ebeb7009d6616c03ded

Comments