MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb138ad80b5d8bcd94db5e8a11681d9990a10886d2956b1c8aba09c0609dbf79. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb138ad80b5d8bcd94db5e8a11681d9990a10886d2956b1c8aba09c0609dbf79
SHA3-384 hash: b662c5a8a3ae50ef842039e9699815e291e510d799cf2ddaecc0e5a6fc9e3745bedbce26a476b464e5341a413dd831ee
SHA1 hash: 9f44dcdad0d792f7b046987ae6493cbc42f3a0e0
MD5 hash: 98f00f2d3227800a04a142133e93d285
humanhash: nevada-iowa-mobile-seven
File name:svchost.exe
Download: download sample
File size:122'880 bytes
First seen:2025-11-23 09:30:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e029f98a2da83608852f59fa44f95f0e (1 x Worm.Mofksys)
ssdeep 768:/iZNZiZNPp0b5BbrMVUTBv6mkZ8jA7IwnDoSde:/WNZWNBGBrM6Fv6mkqyoP
TLSH T14FC34A49F616C1BCC938C07BE1A0C1B25F181EBA54BBCB7B35663E672EB97410916D32
TrID 60.1% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
11.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.1% (.EXE) Win32 Executable (generic) (4504/4/1)
4.6% (.ICL) Windows Icons Library (generic) (2059/9)
4.5% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Hexastrike
Tags:exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
15
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
svchost.exe
Verdict:
Suspicious activity
Analysis date:
2025-11-23 21:17:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/032cfdd9-47d0-4a16-a1e7-81900e7286c8

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/40866/
Detection(s):
Legacy.Trojan.Agent-1388589
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the Windows directory
DNS request
Enabling autorun
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_basic packed packed upx zero
Link:
https://www.filescan.io/uploads/6922e094eecb08e4aa45a59d/reports/3472bdf7-0fe7-4f04-8342-afed4bac42f4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/cb138ad80b5d8bcd94db5e8a11681d9990a10886d2956b1c8aba09c0609dbf79
Result
Gathering data
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cb138ad80b5d8bcd94db5e8a11681d9990a10886d2956b1c8aba09c0609dbf79
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/98f00f2d3227800a04a142133e93d285
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb138ad80b5d8bcd94db5e8a11681d9990a10886d2956b1c8aba09c0609dbf79/
Threat name:
Win32.Worm.Brontok
Create hunting rule
Status:
Malicious
First seen:
2025-11-22 21:20:00 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
34 of 36 (94.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zmjyvwallwf43fg3l2fbc2a5tgikcceg2kkwwhekxie4aye5x54q._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
adware discovery persistence spyware
Link:
https://tria.ge/reports/251123-mewejaeq7x/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Executes dropped EXE
Modifies system executable filetype association
Modifies WinLogon for persistence
Verdict:
Malicious
Tags:
Legacy.Trojan.Agent-1388589
YARA:
n/a
Link:
https://app.threat.zone/submission/c0547622-b32c-4949-80be-5f4f8f25cb5d
Unpacked files
SH256 hash:
cb138ad80b5d8bcd94db5e8a11681d9990a10886d2956b1c8aba09c0609dbf79
MD5 hash:
98f00f2d3227800a04a142133e93d285
SHA1 hash:
9f44dcdad0d792f7b046987ae6493cbc42f3a0e0
Link:
https://www.unpac.me/results/aee9d755-28a4-4d94-b744-98b5d871ecfe/
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/cb138ad80b5d8bcd94db5e8a11681d9990a10886d2956b1c8aba09c0609dbf79

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:upx_3
Create hunting rule
Author:Kevin Falcoz
Description:UPX 3.X

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/40866/

Comments