hxxps://buk[.]box[.]com

Analysis

user interaction
yes
max time kernel
21s
max time network
25s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260130-es
resource tags

arch:x64arch:x86image:win10ltsc2021-20260130-eslocale:es-esos:windows10-ltsc_2021-x64systemwindows
submitted
24/04/2026, 13:46

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General

Target
https://buk.box.com
Sample260424-q3bltact8x

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SystemTemp	chrome.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Time Discovery 1 TTPs 1 IoCs

Adversary may gather the system time and/or time zone settings from a local or remote system.

discovery

System Time Discovery

T1124

pid	Process
3752	chrome.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	chrome.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "134215120387021817"	chrome.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5468	chrome.exe
5468	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

pid	Process
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe

Suspicious use of AdjustPrivilegeToken 42 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe
Token: SeShutdownPrivilege	5468	chrome.exe
Token: SeCreatePagefilePrivilege	5468	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe
5468	chrome.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5468 wrote to memory of 3820	5468	chrome.exe	83
PID 5468 wrote to memory of 4808	5468	chrome.exe	84
PID 5468 wrote to memory of 4808	5468	chrome.exe	84
PID 5468 wrote to memory of 3752	5468	chrome.exe	85
PID 5468 wrote to memory of 1124	5468	chrome.exe	86
PID 5468 wrote to memory of 1124	5468	chrome.exe	86
PID 5468 wrote to memory of 4080	5468	chrome.exe	88
PID 5468 wrote to memory of 4080	5468	chrome.exe	88
PID 5468 wrote to memory of 3316	5468	chrome.exe	89
PID 5468 wrote to memory of 3316	5468	chrome.exe	89
PID 5468 wrote to memory of 5412	5468	chrome.exe	90
PID 5468 wrote to memory of 5412	5468	chrome.exe	90
PID 5468 wrote to memory of 2976	5468	chrome.exe	91

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://buk.box.com
1⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5468
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x21c,0x220,0x224,0x1f8,0x228,0x7fff05c6c728,0x7fff05c6c734,0x7fff05c6c740
  2⤵
  PID:3820
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1712,i,7021850171644526210,127824321676001797,262144 --field-trial-handle=1984,i,9742356060027980052,3864602853300274139,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=1980 /prefetch:2
  2⤵
  PID:4808
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=es --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=1612,i,1598342578695010331,7307297571477864599,524288 --field-trial-handle=1984,i,9742356060027980052,3864602853300274139,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=2264 /prefetch:3
  2⤵
  - System Time Discovery
  PID:3752
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=es --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=2384,i,630269783234173939,2561844203127477770,524288 --field-trial-handle=1984,i,9742356060027980052,3864602853300274139,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=2396 /prefetch:8
  2⤵
  PID:1124
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=es --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --metrics-shmem-handle=3228,i,7303054356678612251,2400064475279866637,2097152 --field-trial-handle=1984,i,9742356060027980052,3864602853300274139,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3240 /prefetch:1
  2⤵
  PID:4080
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=es --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --metrics-shmem-handle=3244,i,753142891954560290,17920381537163097751,2097152 --field-trial-handle=1984,i,9742356060027980052,3864602853300274139,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=3284 /prefetch:1
  2⤵
  PID:3316
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=es --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --metrics-shmem-handle=4456,i,15571829208784803270,6407904769400084131,2097152 --field-trial-handle=1984,i,9742356060027980052,3864602853300274139,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=4480 /prefetch:2
  2⤵
  PID:5412
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=es --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5280,i,2280490653975116695,16547004383667044981,524288 --field-trial-handle=1984,i,9742356060027980052,3864602853300274139,262144 --variations-seed-version=20260129-090048.396000 --mojo-platform-channel-handle=5232 /prefetch:8
  2⤵
  PID:2976

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:2452

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
1⤵
PID:5380

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Time Discovery

T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

BookmarkMergedSurfaceOrdering

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BookmarkMergedSurfaceOrdering
Size 6B
SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
MD5 377d072e137022223a370760763420bb
SHA1 534e5f914ae99bf0a342a2f7a7e0724bd0d11ef7
SHA512 d1e37e45e8d603c46c9254d7295744104222b09340246c5e5f50d661d4688ccc2068adf1e0cd78599bcdcf475f8a0a6255dcd3e429812aa14cc2e2022309955c
MD5 SHA1 SHA512

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BrowsingTopicsState

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
Size 414B
SHA256 8b9f6c52ec303029c6cca6c8e21acd28df3eb15c9961d37cd6c12a06d601eaaf
MD5 c1dd89f36639f8d398d06464933974c5
SHA1 ab332cec2c11fca37d3611891a638bd07ee8ea95
SHA512 14f85bcb3e56474d8154f226631ad54e9fefc34029826d59ba899dd8130d21a8d1e61d8b2343f464c44481764f01580191c20eed2761046fa3e7994663a492d6
TLSH
T1B9E02BBACD21DC3718FE073860154702EB5123472751469F3B3DC10D8FB163A1945C6C
MD5 SHA1 SHA512 TLSH

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SCT Auditing Pending Reports

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
Size 2B
SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
MD5 d751713988987e9331980363e24189ce
SHA1 97d170e1550eee4afc0af065b78cda302a97674c
SHA512 b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af
MD5 SHA1 SHA512

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Preferences

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
Size 12KB
SHA256 9c8cf8f803d3360a041ec5d3b544114966c290755f9c10393b316e603ad32f3c
MD5 34ec2d0cd59e6b2bfc8d5f39d967b7f1
SHA1 a585be32ecd178a2cb3badd4a90478ed9815bfbd
SHA512 a5e326ed56315e177610cb59e14e08f6cbbe269ed7546f32b94606eeedd799dd1e8bc6063f6d7f7ebaee5ee135e14df3fb0163e5c7adbb616a5e313fedb47a30
SSDEEP 192:rR3n0LOi7E6Dl6v7WgpAPRp2lF9lHsb+WNnzqhsg2ekd+vVLBVyIsnAUge:rR30vHlWlUX03weF23d+Fe
TLSH
T1F542D73EBA14683F5CCBD229F961B717E7F5102524A42E88EAFC8A2C15E75CD2223417
MD5 SHA1 SHA512 SSDEEP TLSH

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Secure Preferences

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
Size 17KB
SHA256 fcaf21c1ef6b4d222e5fe76088b8a97b4c7d553b74a8a5c216ea6d05e46409d1
MD5 af988466d980d375652852848205f54c
SHA1 b5c274fe7e5c81806e7dec5f17915ccd0b5ba236
SHA512 447cce6c07b2970956cadd13206e31ab226398b330f700dbf0f4b1495ed55ba93638cecd30906f27732b441617a0fd7a27f1ae3fb0fdf1401a7292957531ba12
SSDEEP 384:gGj8D7KxkXqKf/pUZNCgVLH2HfgslVM7pLILcmfOPXOD8/+ErU39EH14F5LT4teA:gm8D7KxkXqKf/pUZNCgVLH2Hfgs7M7pR
TLSH
T1F77208676C4C9E3B0F94DACCDC167B4FADB5024B65EA8C6842FA582503D5ACB11062FB
MD5 SHA1 SHA512 SSDEEP TLSH

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the-real-index

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
Size 120B
SHA256 25cb3eabf2411c1c39d688b1bd80afbcdc5677a25fa767bde270ae62c8aea7d2
MD5 2ddf6dadbc801523a899494ccc752930
SHA1 46a4eae4de7414bbae008f45f9a272385e792045
SHA512 5a9b56506528cce0e669e05290441f3f7145ffa8dd1c9f1256841454242f0edc8204aeca8a582c92d4af58acdbad8480bc74f6e78e1cefb8700e9e3cf6bca197
TLSH
T1E6B0121080469502C05312B0158B649831145F11D705130653E07D72F9265A24014150
MD5 SHA1 SHA512 TLSH

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the-real-index~RFe5862cc.TMP

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe5862cc.TMP
Size 96B
SHA256 6e3feeb6d99d2b961c536612e7df5e50bb52354f6dcef1478c9c680b99ea39e6
MD5 34daeb51b599d550abbe3142b120d673
SHA1 723bc312d50d99414104464eb540ea9bb9831ad4
SHA512 4da0537fc2e816f7e66b6ec66cd8b62a26c394f51c9a1b6acb1d8e5073d28c3e68c1b8ae1408c858ebda98698d16480efeb910dad62a6b955f1bca1372412adf
TLSH
T140B02280C002A302C08203B038C282C83220EF22C203320283F00EA2CE2AA388020030
MD5 SHA1 SHA512 TLSH

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Local State

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
Size 89KB
SHA256 c0ab74d1228a2485a397b224210206dbcba63d9e01995368ffb0efbbd7ea4e1e
MD5 e1ac1543109747aacebacabbaea83178
SHA1 663fe0b9ca64eec9778023b468948de0740a0c0f
SHA512 921be88c17b1ba382cd3c3168eb02d6bb0e30db3f88ecde48da25b9132499cb7746b59c70716096a5ded07f9053b31422f6d88c2c2e61a032d856e879c78eef3
SSDEEP 1536:IyKWlBshIZW8wI/Yc5hJxedCj/S2uJYgtLaEmNsXtZdzqRatPr:tDlBshIZZwINsIrS2uJBLpAkLQqr
TLSH
T1B59302BB3EA6DC77C49C4102B93C2A4D6FC4E5E9C818B66559CA277F41F1BF99203502
MD5 SHA1 SHA512 SSDEEP TLSH

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Local State

Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
Size 90KB
SHA256 49f623b81ad7c281586a6b6f1840a1956cc1e350a9ecba3698d1d7c38cea397a
MD5 5006ab24fa43d1b1edf80069dd88a8a6
SHA1 882806d4c27d170f6f5ffb16ff9e9fe91836dae8
SHA512 30d52429d8c7cb2971390a9e5fc356488fb6911bc7db76d67e55638617262a464e5bd68cf8b1e483f8444c412c3e405b3aeb84ca92cf469bcd4fa7fc4eaddf37
SSDEEP 1536:KDx5KWlBshIZW8wI/Yc5hJxedCj/S2uJYgtLaEmNsXtZdzqRatPr:O5DlBshIZZwINsIrS2uJBLpAkLQqr
TLSH
T1239302BB3EA6EC37C4DC5202B53C2A0E2EC4A5A9C918B63559CB677F01F5BF95203142
MD5 SHA1 SHA512 SSDEEP TLSH

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