MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5f1146ec4c1130cd64af934de2687d6dc78330b3bc6c8486deb39b9305b10d72. 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
Efimer
Vendor detections: 9
| SHA256 hash: | 5f1146ec4c1130cd64af934de2687d6dc78330b3bc6c8486deb39b9305b10d72 |
|---|---|
| SHA3-384 hash: | 548d48277a1b84733143a5119c98c48032f56b0af230604088cf75207e33ae59bc59d44d2528b370ac260ff928b6a351 |
| SHA1 hash: | ad55499168f6028869bb7ebdd83406b948ede9f1 |
| MD5 hash: | dd79f535f6108df5bea9c3b2be064a09 |
| humanhash: | fillet-mobile-beryllium-pennsylvania |
| File name: | default.dat |
| Download: | download sample |
| Signature | Efimer |
| File size: | 14'274'391 bytes |
| First seen: | 2026-07-30 12:52:31 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | dcaf48c1f10b0efa0a4472200f3850ed (716 x Efimer, 60 x BlankGrabber, 23 x SalatStealer) |
| ssdeep | 393216:egmP3ruwRR5DAKB0+YOUS6E8TSeksEXMCHWUjXpcuI3/PGTAI:egmjuwV/BcTS6BTVksEXMb8XeH/O7 |
| TLSH | T1EBE6331C7AD003EFDB93813CD9B263EAD594786A07B1CBDF466816B1BA530D0883E957 |
| 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 | b2f0e8cccce8f0b2 (1 x Efimer) |
| Reporter |  aachum |
| Tags: | ClickFix Efimer exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
178
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:
Malicious
File Type:
exe x64
First seen:
2026-07-30T10:56:00Z UTC
Last seen:
2026-07-31T22:20:00Z UTC
Hits:
~10
Verdict:
Unknown
Gathering data
Score:
99%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Egairtigado
Status:
Malicious
First seen:
2026-07-30 12:53:39 UTC
File Type:
PE+ (Exe)
Extracted files:
482
AV detection:
16 of 38 (42.11%)
Threat level:
5/5
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:
5f1146ec4c1130cd64af934de2687d6dc78330b3bc6c8486deb39b9305b10d72
MD5 hash:
dd79f535f6108df5bea9c3b2be064a09
SHA1 hash:
ad55499168f6028869bb7ebdd83406b948ede9f1
SH256 hash:
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
MD5 hash:
862f820c3251e4ca6fc0ac00e4092239
SHA1 hash:
ef96d84b253041b090c243594f90938e9a487a9a
SH256 hash:
970e8ec6128ac88921ba21f51f11bef245a0e15ea76a50e980cad13cc0bb51c7
MD5 hash:
d6847c0f275ee31e1de55aea577a8fb9
SHA1 hash:
aeab8d2ec45cfb7bc9f736c5c057538d7f1e0fdc
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.
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: | 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
Delivery method
Distributed via web download
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