hxxps://chromeenterprise[.]google/browser/download/

Resubmissions

19/05/2023, 14:57

230519-sbvxgsed36 1

19/05/2023, 14:49

230519-r61wjsha9x 1

Analysis

max time kernel
603s
max time network
605s
platform
windows10-1703_x64
resource
win10-20230220-en
resource tags

arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
submitted
19/05/2023, 14:57

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Report Analysis Logs

General

Target

https://chromeenterprise.google/browser/download/

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 5 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz	firefox.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3346939869-2835594282-3775165920-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2284	firefox.exe
Token: SeDebugPrivilege	2284	firefox.exe
Token: SeDebugPrivilege	2284	firefox.exe
Token: SeDebugPrivilege	2284	firefox.exe
Token: SeDebugPrivilege	2284	firefox.exe
Token: SeDebugPrivilege	2284	firefox.exe
Token: SeDebugPrivilege	2284	firefox.exe
Token: SeDebugPrivilege	2284	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2284	firefox.exe
2284	firefox.exe
2284	firefox.exe
2284	firefox.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2284	firefox.exe
2284	firefox.exe
2284	firefox.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2284	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 8 wrote to memory of 2284	8	firefox.exe	66
PID 2284 wrote to memory of 4748	2284	firefox.exe	67
PID 2284 wrote to memory of 4748	2284	firefox.exe	67
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 3728	2284	firefox.exe	68
PID 2284 wrote to memory of 4412	2284	firefox.exe	69
PID 2284 wrote to memory of 4412	2284	firefox.exe	69
PID 2284 wrote to memory of 4412	2284	firefox.exe	69

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" https://chromeenterprise.google/browser/download/
1⤵
- Suspicious use of WriteProcessMemory
PID:8
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" https://chromeenterprise.google/browser/download/
  2⤵
  - Checks processor information in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2284
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2284.0.413619391\1232428009" -parentBuildID 20221007134813 -prefsHandle 1664 -prefMapHandle 1648 -prefsLen 20888 -prefMapSize 232675 -appDir "C:\Program Files\Mozilla Firefox\browser" - {913b4fa2-3557-476f-96cb-39bae1beb55c} 2284 "\\.\pipe\gecko-crash-server-pipe.2284" 1756 173cc916558 gpu
    3⤵
    PID:4748
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2284.1.1559291936\233784829" -parentBuildID 20221007134813 -prefsHandle 2172 -prefMapHandle 2168 -prefsLen 21749 -prefMapSize 232675 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {cb3492bb-aa11-4cca-a41a-bb1c786d7595} 2284 "\\.\pipe\gecko-crash-server-pipe.2284" 2196 173b8f6fb58 socket
    3⤵
    PID:3728
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2284.2.847074131\1993889060" -childID 1 -isForBrowser -prefsHandle 2704 -prefMapHandle 2940 -prefsLen 21832 -prefMapSize 232675 -jsInitHandle 1344 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {76688d76-5452-40b5-89bc-6d3dd0bb7919} 2284 "\\.\pipe\gecko-crash-server-pipe.2284" 2676 173cf857258 tab
    3⤵
    PID:4412
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2284.3.962328413\129107864" -childID 2 -isForBrowser -prefsHandle 3732 -prefMapHandle 3728 -prefsLen 26562 -prefMapSize 232675 -jsInitHandle 1344 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {76c8bee2-1368-43c8-9361-38a725e3ebc7} 2284 "\\.\pipe\gecko-crash-server-pipe.2284" 3740 173d0bb2058 tab
    3⤵
    PID:616
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2284.4.634575622\686644036" -childID 3 -isForBrowser -prefsHandle 4652 -prefMapHandle 4648 -prefsLen 26621 -prefMapSize 232675 -jsInitHandle 1344 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {ff740529-f66b-47ec-a786-897ef006f1f5} 2284 "\\.\pipe\gecko-crash-server-pipe.2284" 4672 173d0bd2758 tab
    3⤵
    PID:1624
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2284.6.1152471714\1409704152" -childID 5 -isForBrowser -prefsHandle 5004 -prefMapHandle 5008 -prefsLen 26621 -prefMapSize 232675 -jsInitHandle 1344 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {76cb30cc-9817-4cb6-af43-005729fff837} 2284 "\\.\pipe\gecko-crash-server-pipe.2284" 4996 173d0bd2158 tab
    3⤵
    PID:2000
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2284.5.573231665\1276482296" -childID 4 -isForBrowser -prefsHandle 4676 -prefMapHandle 4712 -prefsLen 26621 -prefMapSize 232675 -jsInitHandle 1344 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {d3f5133b-42bc-4c17-b8f5-5fa969237e75} 2284 "\\.\pipe\gecko-crash-server-pipe.2284" 4832 173d0bd1258 tab
    3⤵
    PID:1640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\evlzgz75.default-release\activity-stream.discovery_stream.json.tmp

Filesize
156KB

MD5
2147ef10db9b08f66a957d6ebf70b605

SHA1
5d76eb0bb7ecc520eb1b8c37ce875b7f3e36a965

SHA256
da47649325339f48d034889970cbcb69e4cc0bd6bd68b6cc5db15e222f5e5f04

SHA512
219a806168e7ad64a4d6699095bab24c7df66082b736375bc1c6bb9d295c826337e3fb8d232dcef9bea8c7ccd8690227f869cea5b0f78d9182ee214b5a8268d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpaddon

Filesize
442KB

MD5
85430baed3398695717b0263807cf97c

SHA1
fffbee923cea216f50fce5d54219a188a5100f41

SHA256
a9f4281f82b3579581c389e8583dc9f477c7fd0e20c9dfc91a2e611e21e3407e

SHA512
06511f1f6c6d44d076b3c593528c26a602348d9c41689dbf5ff716b671c3ca5756b12cb2e5869f836dedce27b1a5cfe79b93c707fd01f8e84b620923bb61b5f1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\6824f4a902c78fbd.customDestinations-ms

Filesize
7KB

MD5
ee81eb0fafed6af54e766c89f46c66c0

SHA1
e5ae3c617cfa75af95088331d9a64e896b4ef6c8

SHA256
849b088fb53596769262fd5ffb8ee8e0b65e344969404461efb1bba37d9e2d45

SHA512
3994b5cd8068236a58274980a062f0935d6d1ad81514558960b5720262b1482f35b7e981f7252a39d1cc4088efb26c08a08302d12bda7f7f46bc62afbbd90003

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\bookmarkbackups\bookmarks-2023-05-19_11_yyzQT6zYKGzzlFbJAldNzg==.jsonlz4

Filesize
944B

MD5
6e888dd6fcaf9594a8c4264b6803875b

SHA1
b2437376c810d15fd5bab09673a2d2ede1c088bd

SHA256
26e32f944b43b35bb48ccab93e4b9e63d490da27e0f8c26afe10a193a21b03e1

SHA512
cc88f691a29b9a30abaed808025cfbccaa251a2d71b32fccac292930142f0b8450cfd2e4a14a6e65fd7d3f4dee562bcde642648e0affe0763b08d34c1f699a84

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\broadcast-listeners.json

Filesize
204B

MD5
72c95709e1a3b27919e13d28bbe8e8a2

SHA1
00892decbee63d627057730bfc0c6a4f13099ee4

SHA256
9cf589357fceea2f37cd1a925e5d33fd517a44d22a16c357f7fb5d4d187034aa

SHA512
613ca9dd2d12afe31fb2c4a8d9337eeecfb58dabaeaaba11404b9a736a4073dfd9b473ba27c1183d3cc91d5a9233a83dce5a135a81f755d978cea9e198209182

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\cert9.db

Filesize
224KB

MD5
1ab35f1b91658a26051f2d81bcbab34c

SHA1
b70d47c0d5d1c58c870e333c880e16e4d94641df

SHA256
a2fdbab42556277fece6c7a18a8f9c8bfba4d2bb45cfd335a99d82a56f533824

SHA512
e00bdaf556ef177a61feb347601e06231ea165006df18fbe1b61466da09f895d3b3f65f0edbd21a7982be2d3d1ef0f9a7c58664bddde8c03bed5194dccf1a403

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\gmp-gmpopenh264\1.8.1.1\gmpopenh264.dll

Filesize
997KB

MD5
fe3355639648c417e8307c6d051e3e37

SHA1
f54602d4b4778da21bc97c7238fc66aa68c8ee34

SHA256
1ed7877024be63a049da98733fd282c16bd620530a4fb580dacec3a78ace914e

SHA512
8f4030bb2464b98eccbea6f06eb186d7216932702d94f6b84c56419e9cf65a18309711ab342d1513bf85aed402bc3535a70db4395874828f0d35c278dd2eac9c

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\gmp-gmpopenh264\1.8.1.1\gmpopenh264.info

Filesize
116B

MD5
3d33cdc0b3d281e67dd52e14435dd04f

SHA1
4db88689282fd4f9e9e6ab95fcbb23df6e6485db

SHA256
f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b

SHA512
a4a96743332cc8ef0f86bc2e6122618bfc75ed46781dadbac9e580cd73df89e74738638a2cccb4caa4cbbf393d771d7f2c73f825737cdb247362450a0d4a4bc1

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\prefs.js

Filesize
6KB

MD5
f843fc3b858888d342076c7199266348

SHA1
97dea7b7d8486f03cc085ef488fda80fe53515a0

SHA256
19b6e95d7e0e109333b648d994d42f1f8552467f8f43a4570f84dc5c5e2189a4

SHA512
9b25cfb2a279bda5827e7d4c3446c75cb5057e7a886e23b7f3eb44d3a2fbb04d19249ff423c821cc41ea7a6d8585fafb0b4f9ae8d54274883250c4a4a1c7c1f7

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
1KB

MD5
98611d1abcbebb2edf97bae6c1247f83

SHA1
1cb9fa4c1165465e4b094c4a8acbd6c2773720ee

SHA256
00cf0e6e323154f3b446a577efdfb68f1e63f115b6981601abb3f4701e447256

SHA512
9ac4c95aa88294d34088302ad2519468afd407a8ff305915231b86dac827493d81fd288d85d4def675c9a9fcb6108f455debeb82d4aaf3fe504b3a76d02ffa14

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
1022B

MD5
b24b2605b10cf5b5fff19c2fdbccb424

SHA1
d4dfb8965471aca8b46a21c0ed434bd583a26d79

SHA256
c0229688f3e3ed523eb0f252d2956b2b0866f0c0a2f2b1ddb2dc8adbcc036708

SHA512
d31b86f2c3c32ca43864c168dd20b3033dfedd97e4792d0bb2854c664f3a2361298efccea8f4b188334a5f505fd7b073c9c015960bd1673a9270e9f7e6175046

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\evlzgz75.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite

Filesize
184KB

MD5
13f4ea7224417985aabae4a2f59fc2ba

SHA1
2d20752d98ce84d37a69d349d2c008e302748b59

SHA256
929688d666a67a627252819b523a1a80c92a092a94b155728b8ae603ec370c4f

SHA512
0cf9e68368fff17491537a97f62cd1dc0ac9d1d7330cb2ad3f3e252ad973097fd53e416c70e9c0abb7a5cf97ac92e58f364fa96c47c95c071df71aca94dd8501

Download Submit