MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 39877e61c63ab967daf22c6214269ea676159f0ba2bc885c9cf8404503fdbfe8. 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: 14
| SHA256 hash: | 39877e61c63ab967daf22c6214269ea676159f0ba2bc885c9cf8404503fdbfe8 |
|---|---|
| SHA3-384 hash: | 1639dec64511dd8071af1bdcbf2c227a30024c81a2bf3097c21492580ade2d0c6246486ce3b7664fa096090d7189c840 |
| SHA1 hash: | d3843efb29750a1194d3a1e771fe52ef5dd470f6 |
| MD5 hash: | 7c783f8b56569d8564988b2a520a3a1d |
| humanhash: | march-juliet-eleven-six |
| File name: | ch.exe |
| Download: | download sample |
| File size: | 13'748'450 bytes |
| First seen: | 2026-02-03 17:59:12 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 8c16c795b57934183422be5f6df7d891 (36 x Mofksys, 18 x CryptOne, 6 x AveMariaRAT) |
| ssdeep | 393216:W85vzabVw5AuCA6mdUSC9Iv7oy1P//wBMbxkh:h5vzeVANCA9qJuUEPXwBM92 |
| TLSH | T1D1D6330963A005EBF8E6CABED563984AF266BD512F91DDCB039053402C731933B7A767 |
| TrID | 42.6% (.EXE) Win32 Executable (generic) (4504/4/1) 19.4% (.ICL) Windows Icons Library (generic) (2059/9) 18.9% (.EXE) Generic Win/DOS Executable (2002/3) 18.9% (.EXE) DOS Executable Generic (2000/1) |
| Magika | pebin |
| Reporter |  BlinkzSec |
| Tags: | exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
102
Origin country :
CZVendor Threat Intelligence
Malware configuration found for:
PyInstaller
RFDxNew
Details
PyInstaller
a compiled assembly and a Python version
RFDxNew
an extracted component
Malware family:
n/a
ID:
1
File name:
_39877e61c63ab967daf22c6214269ea676159f0ba2bc885c9cf8404503fdbfe8.exe
Verdict:
Malicious activity
Analysis date:
2026-02-03 17:59:58 UTC
Tags:
jeefo auto-reg python pyinstaller
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Gathering data
Verdict:
Malicious
Score:
99.1%
Tags:
blackshades swisyn
Result
Verdict:
Malware
Maliciousness:
Behaviour
Enabling the 'hidden' option for recently created files
Running batch commands
Launching a process
Сreating synchronization primitives
Creating a window
Creating a file in the Windows subdirectories
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% subdirectories
Setting a single autorun event
Enabling a "Do not show hidden files" option
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm blackshades expand lolbin mofksys overlay swisyn virus visual_basic
Verdict:
Malicious
Labled as:
Gosys.B
Result
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-12T17:17:00Z UTC
Last seen:
2025-12-14T16:25:00Z UTC
Hits:
~10
Malware family:
MOFKSYS
Verdict:
Malicious
Score:
98%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.JEEFO
Threat name:
Win32.Trojan.Swisyn
Status:
Malicious
First seen:
2025-12-12 23:48:54 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
35 of 36 (97.22%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
10/10
Tags:
defense_evasion discovery execution persistence pyinstaller
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Detects Pyinstaller
System Location Discovery: System Language Discovery
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Stops running service(s)
Modifies visibility of hidden/system files in Explorer
Unpacked files
SH256 hash:
39877e61c63ab967daf22c6214269ea676159f0ba2bc885c9cf8404503fdbfe8
MD5 hash:
7c783f8b56569d8564988b2a520a3a1d
SHA1 hash:
d3843efb29750a1194d3a1e771fe52ef5dd470f6
SH256 hash:
007142039f04d04e0ed607bda53de095e5bc6a8a10d26ecedde94ea7d2d7eefe
MD5 hash:
8d4805f0651186046c48d3e2356623db
SHA1 hash:
18c27c000384418abcf9c88a72f3d55d83beda91
SH256 hash:
9a342fc8109813238b3e274b670856e7e723b27d31df86ffe8c391e146566925
MD5 hash:
4a712b09b4c884a152dd256b0997d2b7
SHA1 hash:
4164b3b7dafc8e356e77c631c993a4256baa6ce7
Detections:
PyInstaller
SH256 hash:
4ae581aa4e65fef9f92c84c428c990892da538b4d9289592df51fa31fd879770
MD5 hash:
6ca946631d8011ee1c2813637efe06fe
SHA1 hash:
46feb03c544c38d616d9af02ced161f2c44f8296
Please note that we are no longer able to provide a coverage score for Virus Total.
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerException__SetConsoleCtrl |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | dependsonpythonailib |
|---|---|
| Author: | Tim Brown |
| Description: | Hunts for dependencies on Python AI libraries |
| Rule name: | Detect_PyInstaller |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects PyInstaller compiled executables across platforms |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | PyInstaller |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies executable converted using PyInstaller. This rule by itself does NOT necessarily mean the detected file is malicious. |
| Rule name: | SEH__vba |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SUSP_Imphash_Mar23_2 |
|---|---|
| Author: | Arnim Rupp (https://github.com/ruppde) |
| Description: | Detects imphash often found in malware samples (Zero hits with with search for 'imphash:x p:0' on Virustotal) |
| Reference: | Internal Research |
| Rule name: | upxHook |
|---|---|
| Author: | @r3dbU7z |
| Description: | Detect artifacts from 'upxHook' - modification of UPX packer |
| Reference: | https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/ |
| Rule name: | Windows_Generic_Threat_7526f106 |
|---|---|
| Author: | Elastic Security |
| Rule name: | Windows_Generic_Threat_cbe3313a |
|---|---|
| Author: | Elastic Security |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
exe 39877e61c63ab967daf22c6214269ea676159f0ba2bc885c9cf8404503fdbfe8
(this sample)
Delivery method
Distributed via web download
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