MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c971bba6255c0a88f7fa852173e99ce3049dc6f11c44d038233db2056815e7ae. 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

AMOS

Vendor detections: 9

Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash:	c971bba6255c0a88f7fa852173e99ce3049dc6f11c44d038233db2056815e7ae
SHA3-384 hash:	592b46d5994ff7f2e6bd894bacb16d7a3902033e27edb3831c51cdfcf8467e8ca84e44401fb5faccccc597ceaee96532
SHA1 hash:	fd86d4736b43d478e944a7228770281ce6b7c1dd
MD5 hash:	c0261a73547354f107c84f0e5f9254df
humanhash:	hot-four-california-nitrogen
File name:	macho_c971bba6255c.bin
Download:	download sample
Signature	AMOS Create hunting rule
File size:	1'330'992 bytes
First seen:	2026-10-13 15:25:56 UTC
Last seen:	Never
File type:	macho
MIME type:	application/x-mach-binary
ssdeep	24576:tXiuwzG2h1NEuFz5IbpfCdG98d/WhOgR1zs+Fp5cbZ3Cd/:C/NsfH6d/wTdE3k
TLSH	T1B8550101CE6740D6F5CCD7303A2A9E378F213160898952DF76962B5C9E3A3D3F16B269
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:	AMOS ClickFix Foxveil Mach-O machO macOS

c4ffeine

Foxveil/AMOS reflective loader Mach-O (1,330,992 B), first seen on YARAify 2026-10-13 15:06 UTC (no file name, no source URL). Statically opened: its encrypted payload decodes to the same AMOS AppleScript stealer as Foxveil quill build 138ea0b71b71dd0ef5d66ddeed1e8f5eca4a562558fc68660d64a007d5690e1f (56 handlers both, new obfuscation). Stealer C2 is injected at run time by an outer stage and is not in the file. Not executed.

Intelligence

File Origin

# of uploads :

# of downloads :

190

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.MacOS.Agent-BWZ.88939769.UNOFFICIAL

Verdict:

Malicious

Score:

94.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad1272e6f551121ba163f98

Tags:

virus

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Tags:

masquerade

Link:

https://www.filescan.io/uploads/6ace4d96b0d9b1ba648921db/reports/04b15ce0-dc64-4073-afdf-1b0a1c4c5968/overview

Verdict:

Malicious

Labled as:

Mac/malicious_confidence_70%

Link:

https://www.hybrid-analysis.com/sample/c971bba6255c0a88f7fa852173e99ce3049dc6f11c44d038233db2056815e7ae

Verdict:

Malicious

File Type:

macho fat

First seen:

2026-10-13T13:33:00Z UTC

Last seen:

2026-10-13T13:49:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/c971bba6255c0a88f7fa852173e99ce3049dc6f11c44d038233db2056815e7ae/results?tab=lookup

Score:

100%

Verdict:

Malware

File Type:

Mach-O universal binary

Link:

https://malprob.io/report/c971bba6255c0a88f7fa852173e99ce3049dc6f11c44d038233db2056815e7ae

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c971bba6255c0a88f7fa852173e99ce3049dc6f11c44d038233db2056815e7ae/

Threat name:

MacOS.Trojan.Generic

Status:

Suspicious

First seen:

2026-10-13 15:26:15 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

5 of 24 (20.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zfy3xjrflqfir572quqxh2m44mcj3rxrdrcnaobdhwzak2av46xa._file

Malware family:

AtomicStealer

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/c971bba6255c/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Amos

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/c971bba6255c0a88f7fa852173e99ce3049dc6f11c44d038233db2056815e7ae

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:	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:	Foxveil_Loader_TaskInfo_Variant Create hunting rule
Description:	Foxveil macOS loader (ClickFix -> AMOS), quill generation with run-time settings back inside the payload script (no constructor settings file): fat x86_64+arm64 linking CoreFoundation+libSystem+libc++ but importing nothing from CoreFoundation or objc, with the task_info/mach_task_self_ resolver core in both slices inside a per-build random libc decoy import set