MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fcf16d3a7cf00b46d53c059afbd20f444eb816763d44ddd90df93059037eafa2. 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: | fcf16d3a7cf00b46d53c059afbd20f444eb816763d44ddd90df93059037eafa2 |
|---|---|
| SHA3-384 hash: | 3bba65c448480dcd56091a52c1d1ec9a743351307e21353beb37e181badfc30fb89c80e6e78fbe530b29a04f93690453 |
| SHA1 hash: | bb4957a2de569fad314e72b644eb141d5702aebd |
| MD5 hash: | cfb8448fad2a644340de1bde6eed889e |
| humanhash: | nine-berlin-venus-victor |
| File name: | macho_fcf16d3a7cf0.bin |
| Download: | download sample |
| File size: | 953'664 bytes |
| First seen: | 2026-09-21 13:06:37 UTC |
| Last seen: | Never |
| File type: |  macho |
| MIME type: | application/x-mach-binary |
| ssdeep | 12288:7CxJECaaued/oMcUpb6FzdceSH602raAvDoicojLg5w:uxJECaaue/oD66FxSHLwDolsg5w |
| TLSH | T13415E100CE5650E5F48CDE303A3A8BA79F716D5049481BEE63927F589E323E3F15726A |
| 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: | ClickFix Foxveil Loader Mach-O machO macOS |
c4ffeine
Foxveil 'cc2' build Mach-O, the SEVENTEENTH payload served from this one unchanged URL (fat x86_64+arm64, 953,664 B), fetched via Tor 2026-09-21 13:05:08 UTC, origin build time 13:02:09, 59 minutes after the previous build. The origin is nginx, so each build time is readable from the ETag: the payloads served behind this URL were stamped 2026-09-20 07:02:41, 09:02:47, 11:03:28, 14:01:46, 15:02:41, 16:02:02, 20:05:52, 21:01:38 and 2026-09-21 00:01:43, 01:02:53, 04:03:03, 07:04:04, 11:06:32, 12:02:19 and 13:02:09 UTC. The job skips hours rather than running on a fixed interval, and the gaps measured so far run from 55 minutes to 4 hours 3 minutes. Hash sequence on the same URL: a3dabccd14492f4c70658ece96a3ed7b4e275ff9d70c434298bd6f863d1e24b9 (987,264 B, 2026-09-18), ec780ca8df9d10df905f3f77641f88ece7651303843802c37a57c484c6251a42, 610ae82d0d872334ba68718030bdeb0c2d23ce592b4c9022fbb225b0208b884a, 233fd2c05865e6fc7034e61bf98e64f7afeb24c1b3e88539895eeff764ebb740, 336f4bf8eb4d76c91f936beabe3a061b43db46d2cc85e6dc82dd22f9194191fc, 8e7d88f5adef0f2706fbc6df433e3c76d81c4b799389319e60a4639fc1c088a1, f03b8beef33330786b3f3f12e2bf2c352d4f14b8e6d5a78180205c7cccdcefb7, 6f994814774412107510aede65422e66c1e825f57bd3ae5d0f173aa2c54893d5, a2da9aba412172006b2ba30e2168ec030dabcdf8c46e6895ffba1c26834251a6, 382a3e22d91b93c67de463fde451870620e661b8e96f40a4ece80a2d3543a03f, c254bf1cd9ab1496ad01785ed181bd6e314534bb1f079a4bc4616b40a8fd62ee, 5fabab3dc7f8b73ee1343b01ea9e3d7802a41d12e9a03b1c80f66b72b98fd3fa, dbedefe4ca5494b6188085e27b17f0f3133fe2ec7df04cfe69714f8047c994bf, 534b55b6772e5c2669f325bc877056c874a180650253e4bd5844ffaf69c384b6, 9f7bfdbf82d08d21fd6e9f31dc5f5e9e9b541bb39f94fa32992281a463e73173, aacf8388643245011a2b5edc472fafa48277e33b7b7e4de23ba62b1a8e919558 (903,952 B, 2026-09-21 12:02:19), then this one. The stage-1 zsh dropper at the same host (sha256 6e753133e537264247a08587d87b30b8d9a96caea1d6cc92d41fc8058073b8f7) still answers with the ETag it has carried since 2026-09-18 12:56:51: the delivery chain is fixed and only the payload rotates. Earlier builds in the series were unpacked statically and each held the same AMOS AppleScript stealer, with the same 47 handlers, hosts and persistence, decrypted with a key derived from the SHA-256 of the loader's own __text section, so each repack rekeys itself. What rotates is the wrapper: obfuscation volume, PBKDF2 iteration count, encrypted item count and table layout, tokens and the ad-hoc code signing identity. This build compared against the previous one: 42 __text functions against 42, TLSH of __text 60, still within the range measured between builds of this family. The file is about 50 KB larger than recent builds because __text itself grew (0x2dae0 bytes against 0x27ce0 per slice), i.e. more obfuscation volume, not new code paths. The encrypted payload table holds 74 items totalling 192,474 bytes of plaintext against 62 items and 196,416 bytes in the previous build, a 2.0 percent move: the same script re-chunked. Host answers HTTP 200 only to a curl User-Agent; browser User-Agents get a Cloudflare 520. Not executed.Intelligence
File Origin
# of uploads :
1
# of downloads :
271
Origin country :
USVendor Threat Intelligence
No detections
Verdict:
Unknown
Threat level:
2.5/10
Confidence:
100%
Tags:
masquerade
Verdict:
Malicious
Labled as:
Mac/malicious_confidence_90%
Verdict:
Unknown
File Type:
macho fat
Score:
100%
Verdict:
Malware
File Type:
Mach-O universal binary
Threat name:
Binary.Trojan.Generic
Status:
Suspicious
First seen:
2026-09-21 13:07:18 UTC
File Type:
Binary (Archive)
Extracted files:
2
AV detection:
5 of 24 (20.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Malware family:
AtomicStealer
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Amos
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: | Foxveil_Loader_B64_Variant |
|---|---|
| Description: | Foxveil macOS loader, 2026-09-18 apph4/cc2 repackaging: no dlsym and no ad-hoc setup- identity, symbols resolved by walking loaded images via __dyld_image_count/__dyld_get_image_header/__dyld_get_image_vmaddr_slide, empty __AUX |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
macho fcf16d3a7cf00b46d53c059afbd20f444eb816763d44ddd90df93059037eafa2
(this sample)
Link
Link
Link
Delivery method
Distributed via web download
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