MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee. 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


Intelligence 9 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee
SHA3-384 hash: 084601fd543371f9855dda94f182a4cec268374ff4212e6c1285a136a6f3019ee44d5601b7f23c8bef0759b84a53ff5a
SHA1 hash: 44a5aef316d14db20f807236ab8bc939e738bcb9
MD5 hash: aa0cbd6ff09994ced08ddd23a96a4af8
humanhash: minnesota-tennis-pasta-summer
File name:composer.php
Download: download sample
Signature Efimer
Create hunting rule
File size:14'034'825 bytes
First seen:2026-08-14 03:52:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash cf72283be50852e418ce6bbb6b645835 (59 x Efimer, 32 x Adware.Yogi, 8 x BlankGrabber)
ssdeep 393216:J004NoINFAzGQSQtFHQ/XMCHWUjlycuI3/PGTAI:JQvAyQSQLHQ/XMb8lPH/O7
TLSH T182E6338967E006BBED72107C9BE10585D6757C3A1B36CAFB13988B58AD131E18C3DB4B
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 (11 x Efimer)
Reporter aachum
Tags:ClickFix Efimer exe


Avatar
iamaachum
https://webenvysolutions.com/composer.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
134
Origin country :
ES ES
Vendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
Link:
https://research.acce.ciphertechsolutions.com/results/523a8524-c9f1-4f5d-ab4d-de4e0c4ede22/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-08-14 04:01:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9f670507-5bce-4f57-be72-fa335b866621

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/80993/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Creating a window
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug expand installer-heuristic lolbin masquerade microsoft_visual_cc overlay packed packed packed pyinstaller reconnaissance
Link:
https://www.filescan.io/uploads/6a7e913225962c9d751e3096/reports/48fa1d40-4a4a-49cc-8b79-ee72ae9900ff/overview
Verdict:
Malicious
Labled as:
Trojan.Blank.Script
Link:
https://www.hybrid-analysis.com/sample/c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-08-14T01:37:00Z UTC
Last seen:
2026-08-14T05:29:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/da5984e2-8fcb-451d-b120-53c5ceb8869f
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1958024
Signature
Contains functionality to infect the boot sector
Found pyInstaller with non standard icon
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1958024 Sample: composer.php.exe Startdate: 14/08/2026 Architecture: WINDOWS Score: 56 48 Multi AV Scanner detection for submitted file 2->48 8 composer.php.exe 31 2->8         started        process3 file4 40 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 8->40 dropped 42 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 8->42 dropped 44 C:\Users\user\AppData\Local\...\python313.dll, PE32+ 8->44 dropped 46 15 other files (none is malicious) 8->46 dropped 50 Contains functionality to infect the boot sector 8->50 52 Found pyInstaller with non standard icon 8->52 12 composer.php.exe 2 8->12         started        signatures5 process6 process7 14 cmd.exe 1 12->14         started        16 cmd.exe 1 12->16         started        18 cmd.exe 1 12->18         started        20 2 other processes 12->20 process8 22 WMIC.exe 1 14->22         started        24 conhost.exe 14->24         started        26 WMIC.exe 1 16->26         started        28 conhost.exe 16->28         started        30 WMIC.exe 1 18->30         started        32 conhost.exe 18->32         started        34 WMIC.exe 1 20->34         started        36 WMIC.exe 1 20->36         started        38 2 other processes 20->38
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/aa0cbd6ff09994ced08ddd23a96a4af8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee/
Threat name:
Win64.Dropper.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-08-14 03:53:34 UTC
File Type:
PE+ (Exe)
Extracted files:
482
AV detection:
11 of 24 (45.83%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ylwqn3itpkhkrw522ouchhbgl5uud3ezaxud6ivlbc2iq474fdxa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
execution pyarmor pyinstaller
Link:
https://tria.ge/reports/260814-efw4fsthjb/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes a command shell one-liner
Loads dropped DLL
Unpacked files
SH256 hash:
c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee
MD5 hash:
aa0cbd6ff09994ced08ddd23a96a4af8
SHA1 hash:
44a5aef316d14db20f807236ab8bc939e738bcb9
Link:
https://www.unpac.me/results/b39db6bc-2f4f-460f-955e-b7e4c33cae12/
SH256 hash:
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
MD5 hash:
862f820c3251e4ca6fc0ac00e4092239
SHA1 hash:
ef96d84b253041b090c243594f90938e9a487a9a
Link:
https://www.unpac.me/results/b39db6bc-2f4f-460f-955e-b7e4c33cae12/
SH256 hash:
728182b65a1d78506bd39177e3c2ccde0a53cdae8c0dcec30730a1dbba41c73c
MD5 hash:
bdf0b12ab0eb639a402151e516545726
SHA1 hash:
8c04592cb04dfe733d7046964006f1d3a9436936
Link:
https://www.unpac.me/results/b39db6bc-2f4f-460f-955e-b7e4c33cae12/
SH256 hash:
a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
MD5 hash:
16855ebef31c5b1ebe767f1c617645b3
SHA1 hash:
315521f3a748abfa35cd4d48e8dd09d0556d989b
Link:
https://www.unpac.me/results/b39db6bc-2f4f-460f-955e-b7e4c33cae12/
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/c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PyInstaller
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PyInstaller compiled executables across platforms
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:PyInstaller
Create hunting rule
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
Create hunting rule
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
Create hunting rule
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

Efimer

Executable exe c2ed06ed137a8ea8dbbad3a8239c265f6941ec9905e83f22ab08b48873fc28ee

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/80993/

Comments