hxxps://t[.]me/BULLCRACK

Analysis

max time kernel
261s
max time network
272s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
30-10-2023 13:43

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General

Target

https://t.me/BULLCRACK

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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	228	firefox.exe
Token: SeDebugPrivilege	228	firefox.exe
Token: SeDebugPrivilege	228	firefox.exe
Token: SeDebugPrivilege	228	firefox.exe
Token: SeDebugPrivilege	228	firefox.exe
Token: SeDebugPrivilege	228	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
228	firefox.exe
228	firefox.exe
228	firefox.exe
228	firefox.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
228	firefox.exe
228	firefox.exe
228	firefox.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
228	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 4796 wrote to memory of 228	4796	firefox.exe	19
PID 228 wrote to memory of 1872	228	firefox.exe	88
PID 228 wrote to memory of 1872	228	firefox.exe	88
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 4104	228	firefox.exe	89
PID 228 wrote to memory of 1648	228	firefox.exe	90
PID 228 wrote to memory of 1648	228	firefox.exe	90
PID 228 wrote to memory of 1648	228	firefox.exe	90

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" -osint -url "https://t.me/BULLCRACK"
1⤵
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://t.me/BULLCRACK
  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:228
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="228.0.1381797975\1167091657" -parentBuildID 20221007134813 -prefsHandle 1832 -prefMapHandle 1824 -prefsLen 20938 -prefMapSize 232675 -appDir "C:\Program Files\Mozilla Firefox\browser" - {9e54877d-146c-43ad-9aa0-edee78a52c96} 228 "\\.\pipe\gecko-crash-server-pipe.228" 1924 181d4306358 gpu
    3⤵
    PID:1872
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="228.1.78982161\1921849754" -parentBuildID 20221007134813 -prefsHandle 2364 -prefMapHandle 2360 -prefsLen 21754 -prefMapSize 232675 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {a95070a0-a0ff-48a0-bc05-2c6f96b93d8b} 228 "\\.\pipe\gecko-crash-server-pipe.228" 2384 181d2fe3858 socket
    3⤵
    PID:4104
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="228.2.208181463\1824182908" -childID 1 -isForBrowser -prefsHandle 2952 -prefMapHandle 3020 -prefsLen 21857 -prefMapSize 232675 -jsInitHandle 1208 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {719b10e3-8ae6-4899-8faa-39b9169bf2ff} 228 "\\.\pipe\gecko-crash-server-pipe.228" 3184 181d6ffc558 tab
    3⤵
    PID:1648
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="228.3.1237704428\1321454804" -childID 2 -isForBrowser -prefsHandle 3680 -prefMapHandle 3676 -prefsLen 26437 -prefMapSize 232675 -jsInitHandle 1208 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {183b245a-32cc-4f2c-8ca5-da1d33272154} 228 "\\.\pipe\gecko-crash-server-pipe.228" 3692 181c6962b58 tab
    3⤵
    PID:456
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="228.4.1671957663\712649092" -childID 3 -isForBrowser -prefsHandle 5164 -prefMapHandle 5160 -prefsLen 26752 -prefMapSize 232675 -jsInitHandle 1208 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {9c3ad10e-1fa2-4955-9e83-1ac32df11cf9} 228 "\\.\pipe\gecko-crash-server-pipe.228" 5136 181da10ae58 tab
    3⤵
    PID:3620
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="228.5.668551461\272885648" -childID 4 -isForBrowser -prefsHandle 5376 -prefMapHandle 5372 -prefsLen 26752 -prefMapSize 232675 -jsInitHandle 1208 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {f7097b06-4205-4cbc-a09f-f6a4fdf0b3f0} 228 "\\.\pipe\gecko-crash-server-pipe.228" 5292 181da107858 tab
    3⤵
    PID:4568
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="228.6.824612872\732386664" -childID 5 -isForBrowser -prefsHandle 5500 -prefMapHandle 5504 -prefsLen 26752 -prefMapSize 232675 -jsInitHandle 1208 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {299bc539-0848-49c8-bf95-42b9498a67e1} 228 "\\.\pipe\gecko-crash-server-pipe.228" 5268 181da109f58 tab
    3⤵
    PID:1888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\04pqhkp3.default-release\activity-stream.discovery_stream.json.tmp

Filesize
22KB

MD5
6d00f03077c62a2f171ecb67b1407650

SHA1
11ca8122f9a7e4bbc8082aa2bf3b4c1f0c00dc03

SHA256
0ce8dbfc21b7019512165b845fd507528002285b5d50dfd9a63d428ddcb1a557

SHA512
da68e861bd1fb24c79e91d4d7a4591bd8e14af0ab0117c520562c06a21bd0842cbf86aeb409a9fdc3a5f0eeac0be6afc752f3f6ed1f4cad529706c8c2a300f4c

Download Submit
C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\04pqhkp3.default-release\cache2\entries\51D52D298316CD3F9A90A40E946BB34EFA1BFB72

Filesize
13KB

MD5
11032f520b3a8b01725e2133eaabe556

SHA1
5368d412eb774c2f42de8825cb4a79d0193d0730

SHA256
c44589ecc3800586afa7167f21c5fd6e07986ce37b712951537c0fea0f50db28

SHA512
53b120f92c9e14b355e4c7f69a12875c21a57ab6fb7303cf8362e0892e0b54bf9deda9ced52da921d145e7d28a8b8231fdccbb256fe39cd9a2918712870eb1be

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\Local\Temp\tmpaddon-1

Filesize
8.0MB

MD5
a01c5ecd6108350ae23d2cddf0e77c17

SHA1
c6ac28a2cd979f1f9a75d56271821d5ff665e2b6

SHA256
345d44e3aa3e1967d186a43d732c8051235c43458169a5d7d371780a6475ee42

SHA512
b046dd1b26ec0b810ee441b7ad4dc135e3f1521a817b9f3db60a32976352e8f7e53920e1a77fc5b4130aac260d79deef7e823267b4414e9cc774d8bffca56a72

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

Filesize
7KB

MD5
76682b1697adaf3fdd98ba494980d1dc

SHA1
4ec26d7125aaa628d2e15164284a434c350f575e

SHA256
fe64ab9ce74cde4c5442e61a14e7824fcf7a7c167f5aa7635d3ae2fb31c504c4

SHA512
b6f699944ca65b0a663b5fb403ad18cfc8b86a07dc75e1b4a4aeefb0980deca89457ec126fe8bc6bdfe016464f33484b9f810e0fa70bedb576d1a6af8acd6ef7

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.dll

Filesize
997KB

MD5
fe3355639648c417e8307c6d051e3e37

SHA1
f54602d4b4778da21bc97c7238fc66aa68c8ee34

SHA256
1ed7877024be63a049da98733fd282c16bd620530a4fb580dacec3a78ace914e

SHA512
8f4030bb2464b98eccbea6f06eb186d7216932702d94f6b84c56419e9cf65a18309711ab342d1513bf85aed402bc3535a70db4395874828f0d35c278dd2eac9c

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.info

Filesize
116B

MD5
3d33cdc0b3d281e67dd52e14435dd04f

SHA1
4db88689282fd4f9e9e6ab95fcbb23df6e6485db

SHA256
f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b

SHA512
a4a96743332cc8ef0f86bc2e6122618bfc75ed46781dadbac9e580cd73df89e74738638a2cccb4caa4cbbf393d771d7f2c73f825737cdb247362450a0d4a4bc1

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\gmp-widevinecdm\4.10.2557.0\LICENSE.txt

Filesize
479B

MD5
49ddb419d96dceb9069018535fb2e2fc

SHA1
62aa6fea895a8b68d468a015f6e6ab400d7a7ca6

SHA256
2af127b4e00f7303de8271996c0c681063e4dc7abdc7b2a8c3fe5932b9352539

SHA512
48386217dabf7556e381ab3f5924b123a0a525969ff98f91efb03b65477c94e48a15d9abcec116b54616d36ad52b6f1d7b8b84c49c204e1b9b43f26f2af92da2

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\gmp-widevinecdm\4.10.2557.0\manifest.json

Filesize
372B

MD5
8be33af717bb1b67fbd61c3f4b807e9e

SHA1
7cf17656d174d951957ff36810e874a134dd49e0

SHA256
e92d3394635edfb987a7528e0ccd24360e07a299078df2a6967ca3aae22fa2dd

SHA512
6125f60418e25fee896bf59f5672945cd8f36f03665c721837bb50adf5b4dfef2dddbfcfc817555027dcfa90e1ef2a1e80af1219e8063629ea70263d2fc936a7

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll

Filesize
11.8MB

MD5
33bf7b0439480effb9fb212efce87b13

SHA1
cee50f2745edc6dc291887b6075ca64d716f495a

SHA256
8ee42d9258e20bbc5bfdfae61605429beb5421ffeaaa0d02b86d4978f4b4ac4e

SHA512
d329a1a1d98e302142f2776de8cc2cd45a465d77cb21c461bdf5ee58c68073a715519f449cb673977288fe18401a0abcce636c85abaec61a4a7a08a16c924275

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.lib

Filesize
1KB

MD5
688bed3676d2104e7f17ae1cd2c59404

SHA1
952b2cdf783ac72fcb98338723e9afd38d47ad8e

SHA256
33899a3ebc22cb8ed8de7bd48c1c29486c0279b06d7ef98241c92aef4e3b9237

SHA512
7a0e3791f75c229af79dd302f7d0594279f664886fea228cfe78e24ef185ae63aba809aa1036feb3130066deadc8e78909c277f0a7ed1e3485df3cf2cd329776

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.sig

Filesize
1KB

MD5
937326fead5fd401f6cca9118bd9ade9

SHA1
4526a57d4ae14ed29b37632c72aef3c408189d91

SHA256
68a03f075db104f84afdd8fca45a7e4bff7b55dc1a2a24272b3abe16d8759c81

SHA512
b232f6cf3f88adb346281167ac714c4c4c7aac15175087c336911946d12d63d3a3a458e06b298b41a7ec582ef09fe238da3a3166ff89c450117228f7485c22d2

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\prefs-1.js

Filesize
6KB

MD5
b5a4f97e4d2ac585f65e4bbf6f67c836

SHA1
d8bf3eade37248b0a7c504ef9418ef37147ef3c3

SHA256
fda9bec6d8df9ca31cb3b830037d6a5abec9e38df3de2e75438e938c0d11b6e5

SHA512
460a8f3b8951fcee3410c86ea7f21a8c96a4866df5a99d9ace94d68d9d91f7486d6531f92c4236d0dad2aa0d0e4da2454fbcfe393bd173fccf102d6fd15e915d

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\prefs-1.js

Filesize
7KB

MD5
5d643292240224eceae6d1878a948ba5

SHA1
b044b1ca6d83214992067d3bb1f7158078328827

SHA256
19637fbcc7b92c374b49c696e1bb13ff1a38b7dc02b2efb18068b487eae0663f

SHA512
8c77d04fa23628d911f3b191db420fe78a030a7544b9791d2a9fc02d9e164789de76d2fd0719e1ef33e8724977ca0592fad45a8e8260552df08eaf0be2c5e54f

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\prefs-1.js

Filesize
8KB

MD5
cd019318910dd90bcba4ed814a114dc9

SHA1
4347507dbf73c890b980df988a90ae398c07ba4d

SHA256
975ccf9958c4e19c241ede49e1ebe5ff7853143f014b5b4c8a8e759f9dcf7012

SHA512
7ba5926ef5771daf8b594981b0f24c17f0f25dfbfbc088c182407ed299444a8813b84e3ef0b59f6601f58910ca6f165df2ba75dde25661632ab5ca3235a96dbb

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\04pqhkp3.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
3KB

MD5
d7ec4922ad851fa483d840dd453e5217

SHA1
8da8f7e2c2dd823779c080ec1331da8fc68e2f84

SHA256
04f4a0e1883eb15434607af1badf1dcb6afdb829009ff262a9cc14fc221c0cf6

SHA512
39ab56925849c3674893d90ed49e93d09e31c2d109978ed749a488b2949a574e329143b23f53ac110b848a0e9eea6d3ec71d8aff190df917c0dad360135f13ba

Download Submit