hxxps://hallenge51[.]cc/invite/i=55083

Analysis

max time kernel
57s
max time network
62s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
15-05-2024 12:21

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General

Target

https://hallenge51.cc/invite/i=55083

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 6 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

firefox.exe

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

Modifies registry class 1 IoCs

Processes:

firefox.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000_Classes\Local Settings firefox.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

firefox.exe

description pid process

Token: SeDebugPrivilege 2096 firefox.exe
Token: SeDebugPrivilege 2096 firefox.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

firefox.exe

pid process

2096 firefox.exe
2096 firefox.exe
2096 firefox.exe
2096 firefox.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

firefox.exe

pid process

2096 firefox.exe
2096 firefox.exe
2096 firefox.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

firefox.exe

pid process

2096 firefox.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000_Classes\Local Settings	firefox.exe

description	pid	process
Token: SeDebugPrivilege	2096	firefox.exe
Token: SeDebugPrivilege	2096	firefox.exe

pid	process
2096	firefox.exe
2096	firefox.exe
2096	firefox.exe
2096	firefox.exe

pid	process
2096	firefox.exe
2096	firefox.exe
2096	firefox.exe

pid	process
2096	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

firefox.exefirefox.exe

description	pid	process	target process
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 4136 wrote to memory of 2096	4136	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 4448	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe
PID 2096 wrote to memory of 1968	2096	firefox.exe	firefox.exe

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://hallenge51.cc/invite/i=55083"
1⤵
- Suspicious use of WriteProcessMemory
PID:4136

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://hallenge51.cc/invite/i=55083
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:2096

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2096.0.1730643555\721778669" -parentBuildID 20230214051806 -prefsHandle 1780 -prefMapHandle 1772 -prefsLen 22074 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {bb781cc7-b3a8-42c1-9543-d43003a77e87} 2096 "\\.\pipe\gecko-crash-server-pipe.2096" 1860 22ea9803b58 gpu
3⤵
PID:4448

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2096.1.1109171674\1837727121" -parentBuildID 20230214051806 -prefsHandle 2380 -prefMapHandle 2376 -prefsLen 22925 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {fae9bf68-2901-4d88-b022-c8df88f1055c} 2096 "\\.\pipe\gecko-crash-server-pipe.2096" 2408 22e9cb8a558 socket
3⤵
PID:1968

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2096.2.1264785717\1483547977" -childID 1 -isForBrowser -prefsHandle 3000 -prefMapHandle 2836 -prefsLen 22963 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {3fa7ab56-ac46-4dab-932c-79597a1d750b} 2096 "\\.\pipe\gecko-crash-server-pipe.2096" 3040 22eac715b58 tab
3⤵
PID:3392

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2096.3.558307026\1969904079" -childID 2 -isForBrowser -prefsHandle 3620 -prefMapHandle 3616 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {3a7f46d7-9b56-4146-a02f-8dca184c0ba6} 2096 "\\.\pipe\gecko-crash-server-pipe.2096" 3632 22eaf5be058 tab
3⤵
PID:3436

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2096.4.857460594\1592250803" -childID 3 -isForBrowser -prefsHandle 4496 -prefMapHandle 4244 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {08e326ba-e3eb-4242-8c0c-fb7a57855e5f} 2096 "\\.\pipe\gecko-crash-server-pipe.2096" 5272 22ea9f1c858 tab
3⤵
PID:1924

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2096.5.944059878\2128394332" -childID 4 -isForBrowser -prefsHandle 5492 -prefMapHandle 5488 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {457024eb-8e8f-4732-8108-7041ba84c71f} 2096 "\\.\pipe\gecko-crash-server-pipe.2096" 5500 22ea9f1f858 tab
3⤵
PID:632

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2096.6.200866180\5737512" -childID 5 -isForBrowser -prefsHandle 5644 -prefMapHandle 5652 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {da815dff-be07-41f3-83ef-12105b087eb0} 2096 "\\.\pipe\gecko-crash-server-pipe.2096" 5632 22ea9f1ce58 tab
3⤵
PID:1504

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\r6lt1pc6.default-release\activity-stream.discovery_stream.json.tmp
Filesize
23KB

MD5
ef4b65fa6f58b22584a541d3291fa2aa

SHA1
261bd8d5f3c59a03aebe6578b2042f714e288842

SHA256
c28bb3bec7094f6dadd39cd738d3224fb71371fe79f762aea0b6734683b0237d

SHA512
fd69f268fc61a14d0abc61d830021e2c7ed164d8e0e91aafad0ce835a75a9abc4e2d553e84d19b07d9d7dfa8b0a1042269552947f594fe3623ac412fe3c5182b

Download Submit
C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\r6lt1pc6.default-release\activity-stream.discovery_stream.json.tmp
Filesize
24KB

MD5
712e3d7caaf824ff6fde0a467a4ed868

SHA1
c2d3eb70f0db2b8b580601a23c68ec32f627af4b

SHA256
d2776d611e602af6e457d4074be799cb93c0b6a50e3870738d83831d3ef5ef28

SHA512
f3a37cd1b8cc25b775c3727c674f3bcd2828be8e744452686dfe0f271cb03f9f9f7efaa7baa3e8b5821d7ca1177d254e7ae0eb3af1c437d0a9e757a6753fdd1c

Download Submit
C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\r6lt1pc6.default-release\cache2\entries\F4EFE37A30D0F14C6AC03FF7949A51CBC2EBC649
Filesize
13KB

MD5
d36fc0519e849db0d4be80ddc603c6c2

SHA1
dbad74ffea8d430bf25c83ea2ef6de9dc8082a8a

SHA256
d69050dbac99a1a8586fb8a42c3ddccd1b386d3a4f83431e14d205c8294b6266

SHA512
f6eb69b25cafe062ba0a287e5d9abfad0f21890c106c07486a1941a953dd8e96dd9ff308e601e939ba75b5244018aaaa8884486323fad9e9d65bb6e25da5da88

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\Mozilla\Firefox\Profiles\r6lt1pc6.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\r6lt1pc6.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\r6lt1pc6.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\r6lt1pc6.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\r6lt1pc6.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\r6lt1pc6.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\r6lt1pc6.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\r6lt1pc6.default-release\prefs-1.js
Filesize
10KB

MD5
eb79e51efb23dd668fe9ec3ca9cee78b

SHA1
91b63e786a0887d1de3c8cdb7ec4909ab43c5abc

SHA256
7553f1a64b5293a28984edf9010be8dc7a05444a4f39c7eb4aa95fe5b4138573

SHA512
b9592266bab1590638ebcfef414dc81be5bfafd15d01c43bbf6f36cf669fc14f920d4aa0cbd6c1d2bbed7acfc892c76c39bf1231ce53fee6f334db05bbade062

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r6lt1pc6.default-release\prefs-1.js
Filesize
8KB

MD5
9f4e7ae5318f7cdd5e3d231d919ec850

SHA1
2005847c219d68b3cf21cc978105aa8987df8e13

SHA256
f4c226747ed0c171b6fc799a1e4ec96b290a65ef5dc5ad229c1defe248e47d25

SHA512
a6d7dff48dfd7daa91a2c40571f5c60ff6c71c0ff136a65beced765fefeb66539fc4f28ce38cebffb901da11fc49cbfb021480da54369d78c4e5e6247c919233

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\r6lt1pc6.default-release\sessionstore-backups\recovery.jsonlz4
Filesize
1KB

MD5
263e72c9f3daec0667a8d9154bfdc71f

SHA1
14ddd4881775e78214f023f13400414fa7265f4d

SHA256
af2e363232bb56337f59971e785038fd8405d343f280cfe78d8b693bd43a0188

SHA512
2c5232dae6cf499c92768453778b45980c8c4ce8f27c3525d73d39ac1fd655ed08321c7a0e746ec636c3439b7742524342758bba7a9b17425f24207dfe54350c

Download Submit