hxxp://cdn[.]stgcdn[.]com

Analysis

max time kernel
146s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
24/04/2024, 13:06

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General

Target

http://cdn.stgcdn.com

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

description	ioc	Process
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
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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	firefox.exe
Token: SeDebugPrivilege	2888	firefox.exe
Token: SeDebugPrivilege	2888	firefox.exe
Token: SeDebugPrivilege	2888	firefox.exe
Token: SeDebugPrivilege	2888	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2888	firefox.exe
2888	firefox.exe
2888	firefox.exe
2888	firefox.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2888	firefox.exe
2888	firefox.exe
2888	firefox.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2888	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2896 wrote to memory of 2888	2896	firefox.exe	78
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4352	2888	firefox.exe	79
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80
PID 2888 wrote to memory of 4668	2888	firefox.exe	80

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 "http://cdn.stgcdn.com"
1⤵
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url http://cdn.stgcdn.com
  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:2888
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2888.0.1511227200\1954720447" -parentBuildID 20230214051806 -prefsHandle 1736 -prefMapHandle 1728 -prefsLen 22074 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {d10c5e18-4abd-4f48-85b1-1c908b5162d6} 2888 "\\.\pipe\gecko-crash-server-pipe.2888" 1816 1c3de50fa58 gpu
    3⤵
    PID:4352
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2888.1.1885835593\949907206" -parentBuildID 20230214051806 -prefsHandle 2352 -prefMapHandle 2348 -prefsLen 22925 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {d989ccf0-eed6-45a4-8453-e3529176ff64} 2888 "\\.\pipe\gecko-crash-server-pipe.2888" 2360 1c3d1789658 socket
    3⤵
    PID:4668
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2888.2.1929360373\597836242" -childID 1 -isForBrowser -prefsHandle 2856 -prefMapHandle 2928 -prefsLen 22963 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {31e8d36f-110e-442c-ac5a-88da0250e510} 2888 "\\.\pipe\gecko-crash-server-pipe.2888" 3044 1c3e1334e58 tab
    3⤵
    PID:3452
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2888.3.741683177\1912188916" -childID 2 -isForBrowser -prefsHandle 3672 -prefMapHandle 3668 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {f78f5131-9a4d-4fba-b71d-23c8ec1b3bf9} 2888 "\\.\pipe\gecko-crash-server-pipe.2888" 3680 1c3e4184c58 tab
    3⤵
    PID:3040
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2888.4.69803266\1514424129" -childID 3 -isForBrowser -prefsHandle 5448 -prefMapHandle 5424 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {54539118-7d62-4705-800e-9dacad750b4d} 2888 "\\.\pipe\gecko-crash-server-pipe.2888" 5456 1c3e50ac658 tab
    3⤵
    PID:1632
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2888.5.1052565583\550377635" -childID 4 -isForBrowser -prefsHandle 5600 -prefMapHandle 5228 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {490b1955-daa6-42ec-92a4-5124accf07a8} 2888 "\\.\pipe\gecko-crash-server-pipe.2888" 5588 1c3e6793e58 tab
    3⤵
    PID:860
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2888.6.2044507087\2383947" -childID 5 -isForBrowser -prefsHandle 5880 -prefMapHandle 5876 -prefsLen 27695 -prefMapSize 235121 -jsInitHandle 1308 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {cab78f22-af9b-4619-96ee-fc81a63a342e} 2888 "\\.\pipe\gecko-crash-server-pipe.2888" 5888 1c3e6794158 tab
    3⤵
    PID:2252

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\bcdi3zmp.default-release\activity-stream.discovery_stream.json.tmp

Filesize
26KB

MD5
5b08b159cfe6266fca9b8fa32d143df9

SHA1
2595fca8e2d4c162ef0996144934857ad23f933b

SHA256
3993a99085c96b095d6a3b93353450c3a2eac6419144072d7a6fe4852014f87c

SHA512
87d3329b2ca22e37f5d69fdb18845f0c0f88e596ac82a52604b8de2db207a14db48da95e462229acf3c57c0f39de0cd865eab61e40cbb699ce9a7ece7cf30c6a

Download Submit
C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\bcdi3zmp.default-release\cache2\entries\C72D4296C2EBC6FD41A9F780CD0C8F30F0FF937C

Filesize
13KB

MD5
b3567ad0b7d2e58d2e04de95d4fec105

SHA1
0a4aba21f81e896a97d2f8b02995951b50396879

SHA256
ac8c5ff4d44f6d8bd03cd94db6d971449e7d9a4f15564a248a3b6faaa6b0f17c

SHA512
ed5ab04041e179e01912838589ab2c609e122982c46062d082f2602a99e0801bd2ede9ccfd94d91d119e50d7e07e527dea8bccf8d85c1b7ee83982cca4c0ae52

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\bcdi3zmp.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\bcdi3zmp.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\bcdi3zmp.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\bcdi3zmp.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\bcdi3zmp.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\bcdi3zmp.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\bcdi3zmp.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\bcdi3zmp.default-release\prefs-1.js

Filesize
10KB

MD5
da728c4bace7711ab1326ff5f8cdabdd

SHA1
bda36d1c63ff926b446a68444dd982c47f51b1d7

SHA256
f676d4e9bbe0df2f76d0fd0434bfb1db5d58170508defe186e3bef6e5ad1d581

SHA512
eabfec3d729cba182c21e289f74aa2fcd232c92183cac707ee59d0b9f5e5e2f3d46c165018df7304591e38b2c8dade6288ab6206bae04b9c0edb64fc43efc925

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\bcdi3zmp.default-release\prefs-1.js

Filesize
7KB

MD5
5a37a2a5a10862df43f77faaeec2f08c

SHA1
b457173f43b2d606a383f6eac0297559b9d49aea

SHA256
8f404d4850e24c3456326d8879544de7a9336dde5be8f5a585ec8d48f621621f

SHA512
7f9da1727cf4deae8009e7bdc80df7439947160f5f1b9163326a54d4336138dea23fe5c8c5f2eed4f23cc1cbe428158f695494bd985f092f597f45e52612447d

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\bcdi3zmp.default-release\prefs.js

Filesize
6KB

MD5
caf2762d28a877510f094f7bc6e76ef3

SHA1
844c89df642d3868c7512f1984637eb80a7f6a67

SHA256
aae183af00c4c46cade1152eb78615dafb394414db9b5fa21e7183fdb09ed634

SHA512
dc01aa4822236db8e4468c2ace50705672dcabc5af7f2ff9c9b61bfaaf7fb26ce2dd03f01da0bdca518f392abd55de4e1a04766a93036fa273cecea9e9acdd93

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\bcdi3zmp.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
1KB

MD5
088ae6dc61f6e8160550d5f102047371

SHA1
d8ec0d71df0b765b946fb645c8e02e97f3295e7b

SHA256
82afccb8f49cd733832636a34b00e0c13ebd64b3a5301bc7f3a00e2fae52554f

SHA512
64895875c6f0054946b12337740385b7c746c002acc23e166d6dc9a8ba45dfef138cd8492f072c046fd43d7c6615c89bcd968060530b0d56e0e1ab22667274c1

Download Submit