MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a4881cf3bac1d49d02e5d4206252b5368ad62ea18108a8790f55d2589c48ce4d. 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
| SHA256 hash: | a4881cf3bac1d49d02e5d4206252b5368ad62ea18108a8790f55d2589c48ce4d |
|---|---|
| SHA3-384 hash: | 996e839331d0f6278838427ebad82cf3ec8679a4fad5c0d3ed088484e1e2f284e3d285170192255de797e980df327cf6 |
| SHA1 hash: | 041d4e564f4879883a614df8c28a9ef35e3cb18f |
| MD5 hash: | 5bb7752e94d83d01e5087aefcf2196c2 |
| humanhash: | washington-nuts-minnesota-may |
| File name: | svchost.exe |
| Download: | download sample |
| File size: | 1'136'404 bytes |
| First seen: | 2025-11-23 09:27:46 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | ee98eef4340fdc659d6537f8155633ef (4 x Simda, 1 x Shiz) |
| ssdeep | 24576:+YhBVnFys7wuVWVT0PAW0duYHM0/JTk6/DHSKgApGaFtiE6ALmOt:+YhQs7tWVToP0Hs0/htDH3pGaFPiw |
| TLSH | T12435234E05C23755DFF9A3B28A8224E5257337EC57A0A839771CE0C903E3A599DF816E |
| 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 |
UPX packed
This file is packed with UPX. We have therefore unpacked the file. Below is furhter information about the unpacked (de-compressed) file.
| File size (compressed) : | 1'136'404 bytes |
|---|---|
| File size (de-compressed) : | 1'187'604 bytes |
| Format: | win32/pe |
| Unpacked file: | 23210e75a10c1a6ddf0a65a9325e8e1078b0b0cbfda02881c3511d7ea92c1345 |
Intelligence
File Origin
# of uploads :
1
# of downloads :
15
Origin country :
IEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
svchost.exe
Verdict:
Suspicious activity
Analysis date:
2025-11-23 17:32:41 UTC
Tags:
auto-reg
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
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
DNS request
Connection attempt
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
Verdict:
Malicious
Labled as:
Trojan.Malware.Generic
Result
Gathering data
Score:
92%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.Malex
Status:
Malicious
First seen:
2025-11-21 20:05:00 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
34 of 36 (94.44%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery persistence upx
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
Unpacked files
SH256 hash:
85ca4d9d9715b40742a5ed39773ddf8291abf4099ac5a45e41f7d9cebd693168
MD5 hash:
cd3864f6928fa58880c0c287b985b0f5
SHA1 hash:
7eabc34f9c749331b762e002fa6949d925b5b78b
SH256 hash:
23210e75a10c1a6ddf0a65a9325e8e1078b0b0cbfda02881c3511d7ea92c1345
MD5 hash:
e512bb11e413484a81101e7f67473f9c
SHA1 hash:
4da08532514dcbdba10ce917a56b995ecfba35e7
SH256 hash:
3d2c5390eae99ff050c883eb8fc016effa71a2a05e3044fc6f766f4e5b7b2a1a
MD5 hash:
aeb7ca1c72fe15979eb21805327e54a4
SHA1 hash:
a0ea3de50606d427c222c9fc02878e905212f943
SH256 hash:
a4881cf3bac1d49d02e5d4206252b5368ad62ea18108a8790f55d2589c48ce4d
MD5 hash:
5bb7752e94d83d01e5087aefcf2196c2
SHA1 hash:
041d4e564f4879883a614df8c28a9ef35e3cb18f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | UPX290LZMAMarkusOberhumerLaszloMolnarJohnReiser |
|---|---|
| Author: | malware-lu |
| Rule name: | UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser |
|---|---|
| Author: | malware-lu |
| Rule name: | UPXv20MarkusLaszloReiser |
|---|---|
| Author: | malware-lu |
| Rule name: | upx_largefile |
|---|---|
| Author: | k3nr9 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
exe a4881cf3bac1d49d02e5d4206252b5368ad62ea18108a8790f55d2589c48ce4d
(this sample)
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