MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a37c44ffce6a8064f8a0a46df19dd40f696b4e0ea749b8102fe125db65e383f8. 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: 7
| SHA256 hash: | a37c44ffce6a8064f8a0a46df19dd40f696b4e0ea749b8102fe125db65e383f8 |
|---|---|
| SHA3-384 hash: | 502d7d349e7c7b173bd2e68816200dbae12bbdf4420db2cf8cc7c128f0c1eb2e85fcb144b66f2172d93c7be27c914cbb |
| SHA1 hash: | 2a7f63abc4a9b290f933314b64bd5737b1d68abc |
| MD5 hash: | 502df189158520e1b9db733aa43c9237 |
| humanhash: | ceiling-chicken-alpha-sodium |
| File name: | default.dat |
| Download: | download sample |
| File size: | 14'312'858 bytes |
| First seen: | 2026-07-25 04:00:02 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | dcaf48c1f10b0efa0a4472200f3850ed (471 x Efimer, 60 x BlankGrabber, 22 x SalatStealer) |
| ssdeep | 393216:osiMq/aR04P1QF633kZXMCHWUjXkcuI3/PGTAI:ozLiOU1QgqXMb8XxH/O7 |
| TLSH | T15FE63344A4D456EEEAB3413AD8F29255E468B4A70B72CBCF5A34D3956E530E0CC3DB23 |
| TrID | 37.0% (.EXE) Win64 Executable (generic) (6522/11/2) 28.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 11.5% (.EXE) OS/2 Executable (generic) (2029/13) 11.3% (.EXE) Generic Win/DOS Executable (2002/3) 11.3% (.EXE) DOS Executable (generic) (2000/1) |
| Magika | pebin |
| dhash icon | 38dcf8f8fcf8e040 (7 x Efimer) |
| Reporter |  aachum |
| Tags: | ClickFix Efimer exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
161
Origin country :
ESVendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
Detection:
n/a
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Creating a window
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-debug expand installer-heuristic lolbin masquerade microsoft_visual_cc overlay packed packed packed pyinstaller reconnaissance
Verdict:
Malicious
Labled as:
Yogi.Generic
Verdict:
Unknown
Gathering data
Score:
99%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win64.Malware.Yogi
Status:
Malicious
First seen:
2026-07-25 04:01:16 UTC
File Type:
PE+ (Exe)
Extracted files:
482
AV detection:
9 of 36 (25.00%)
Threat level:
2/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
execution pyarmor pyinstaller
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes a command shell one-liner
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
a37c44ffce6a8064f8a0a46df19dd40f696b4e0ea749b8102fe125db65e383f8
MD5 hash:
502df189158520e1b9db733aa43c9237
SHA1 hash:
2a7f63abc4a9b290f933314b64bd5737b1d68abc
SH256 hash:
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
MD5 hash:
862f820c3251e4ca6fc0ac00e4092239
SHA1 hash:
ef96d84b253041b090c243594f90938e9a487a9a
SH256 hash:
98be0a757842c963fab6fbdcb3824d899454d1026799beff7d3594c03705b97a
MD5 hash:
cf64deca267fef21bf58d93597e6d3fb
SHA1 hash:
f93d9f8d0e731cdac76c14109de1c94791c01f63
SH256 hash:
a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
MD5 hash:
16855ebef31c5b1ebe767f1c617645b3
SHA1 hash:
315521f3a748abfa35cd4d48e8dd09d0556d989b
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: | 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: | TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments |
| Reference: | https://cyfare.net/ |
| Rule name: | upxHook |
|---|---|
| Author: | @r3dbU7z |
| Description: | Detect artifacts from 'upxHook' - modification of UPX packer |
| Reference: | https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/ |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
exe a37c44ffce6a8064f8a0a46df19dd40f696b4e0ea749b8102fe125db65e383f8
(this sample)
Delivery method
Distributed via web download
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