🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c. 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


MacSync


Vendor detections: 5


Intelligence 5 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c
SHA3-384 hash: c2c9f2df09cac9b24947b9d6fb9e57c450263d7f7d7de1b10abe322ce6586e51256a9f020188a8a2c9d7a3950f194f30
SHA1 hash: 01d942cb5028df0949ff0a162d31746695e42b5a
MD5 hash: 8291121949d8e8c87bba48b09425c7f8
humanhash: cup-moon-lion-pizza
File name:loader_agent_ac13d281a641.bin
Download: download sample
Signature MacSync
Create hunting rule
File size:12'266'240 bytes
First seen:2026-09-13 11:08:57 UTC
Last seen:Never
File type:php macho
MIME type:application/x-mach-binary
ssdeep 196608:smN2DR/P8E9WL62ceJUEZzMz4ZhFgNdDmti2E9WL62ceJUU/zpO:soKR/P8E9WL62ceJU2zw4Zh+NdDm82EB
TLSH T179C67EB5643CD81ED083E0F87A8B87E27D09F46003B0514737A57F6DBE64E5019ADBAA
TrID 82.2% (.DYLIB) Mac OS X Mach-O universal Dynamically linked shared Library (32500/1/5)
17.7% (.O/DYLIB/BUNDLE) Mac OS X Universal Binary (generic) (7002/2)
Magika macho
Reporter c4ffeine
Tags:Mach-O machO macOS MacSync realtux-com reverse-tunnel


Avatar
c4ffeine
MacSync Stealer 'full' build: loader_agent reverse-tunnel backdoor (fat x86_64+arm64, ad-hoc signed 'Claude Code.loader', static OpenSSL). TLS -> WebSocket -> password auth -> yamux with SOCKS5 and SHELL (forkpty) streams. C2 realtux.com:443 (behind Cloudflare). All ObfuscatedString<N> instances are single-byte XOR 0xAA; HTTP side paths /loader/gate, /loader/file-upload. Persists as ~/.local/com.apple.<hex>.hcpi + LaunchAgent. Fetched via Tor 2026-09-13; not executed.

Intelligence

File Origin
# of uploads :
1
# of downloads :
181
Origin country :
US US
Vendor Threat Intelligence
No detections
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
base64 certreq expand lolbin masquerade
Link:
https://www.filescan.io/uploads/6aa68d51c990706c69c7ceca/reports/e387cf8d-5d2e-40e1-9c61-4c919085be94/overview
Verdict:
Malicious
Labled as:
Trojan[Backdoor]/MacOS.Agent
Link:
https://www.hybrid-analysis.com/sample/ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c
Verdict:
Clean
File Type:
macho fat
Link:
https://opentip.kaspersky.com/ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c/results?tab=lookup
Score:
52%
Verdict:
Susipicious
File Type:
Mach-O universal binary
Link:
https://malprob.io/report/ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c/
Threat name:
MacOS.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-09-13 11:47:26 UTC
File Type:
Binary (Archive)
Extracted files:
2
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vqj5fangihn74gp7axn43hlvrzlhudlarlqyrwbafvjyg3cubfoa._file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ldpreload
Create hunting rule
Author:xorseed
Reference:https://stuff.rop.io/
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:upxHook
Create hunting rule
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/
Rule name:WHIRLPOOL_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for WhirlPool constants

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

MacSync

php macho ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c

(this sample)

  
Link
https://www.virustotal.com/gui/file/ac13d281a641dbfe19ff05dbcd9d758e567a0d608ae188d8202d53836c54095c
  
Delivery method
Distributed via web download

Comments