hxxp://zoomdcaia99mmr[.]dca[.]zoom[.]us

Analysis

max time kernel
134s
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, 13:11

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General

Target

http://zoomdcaia99mmr.dca.zoom.us

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\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
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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3904	firefox.exe
Token: SeDebugPrivilege	3904	firefox.exe
Token: SeDebugPrivilege	3904	firefox.exe
Token: SeDebugPrivilege	3904	firefox.exe
Token: SeDebugPrivilege	3904	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3904	firefox.exe
3904	firefox.exe
3904	firefox.exe
3904	firefox.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3904	firefox.exe
3904	firefox.exe
3904	firefox.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3904	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 1740 wrote to memory of 3904	1740	firefox.exe	77
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 4276	3904	firefox.exe	78
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79
PID 3904 wrote to memory of 3368	3904	firefox.exe	79

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://zoomdcaia99mmr.dca.zoom.us"
1⤵
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url http://zoomdcaia99mmr.dca.zoom.us
  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:3904
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3904.0.1171029831\888731891" -parentBuildID 20230214051806 -prefsHandle 1736 -prefMapHandle 1728 -prefsLen 22074 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {459afb4b-0e7e-4aa3-b7c7-892fa4dce47d} 3904 "\\.\pipe\gecko-crash-server-pipe.3904" 1828 1e696c37858 gpu
    3⤵
    PID:4276
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3904.1.294087071\1072967642" -parentBuildID 20230214051806 -prefsHandle 2348 -prefMapHandle 2344 -prefsLen 22925 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {a4b83c21-3bc0-4b1d-af99-0b89ae9f83d9} 3904 "\\.\pipe\gecko-crash-server-pipe.3904" 2360 1e683984758 socket
    3⤵
    PID:3368
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3904.2.760981557\1307086898" -childID 1 -isForBrowser -prefsHandle 2576 -prefMapHandle 2800 -prefsLen 22963 -prefMapSize 235121 -jsInitHandle 1368 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {1b030799-ea39-4c15-903a-1a88de171a87} 3904 "\\.\pipe\gecko-crash-server-pipe.3904" 2764 1e69ac37f58 tab
    3⤵
    PID:1552
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3904.3.808805599\1899737559" -childID 2 -isForBrowser -prefsHandle 4048 -prefMapHandle 4044 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1368 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {3bd13b3d-8ce6-44da-b562-8a7c14ed0dc7} 3904 "\\.\pipe\gecko-crash-server-pipe.3904" 4060 1e683974d58 tab
    3⤵
    PID:3016
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3904.4.2136305066\236765527" -childID 3 -isForBrowser -prefsHandle 5196 -prefMapHandle 5020 -prefsLen 27771 -prefMapSize 235121 -jsInitHandle 1368 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {1d3a4bf8-cceb-4a50-8914-825fcab22dad} 3904 "\\.\pipe\gecko-crash-server-pipe.3904" 5208 1e69d7ae358 tab
    3⤵
    PID:4856
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3904.5.1483405627\998672482" -childID 4 -isForBrowser -prefsHandle 5344 -prefMapHandle 5348 -prefsLen 27771 -prefMapSize 235121 -jsInitHandle 1368 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {28928802-ea08-4ce2-a518-c08b1b731e94} 3904 "\\.\pipe\gecko-crash-server-pipe.3904" 5336 1e69ebd5658 tab
    3⤵
    PID:1664
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3904.6.1462206816\104372589" -childID 5 -isForBrowser -prefsHandle 5552 -prefMapHandle 5308 -prefsLen 27771 -prefMapSize 235121 -jsInitHandle 1368 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {948578b8-f227-4973-8e2e-cb57eb8c1233} 3904 "\\.\pipe\gecko-crash-server-pipe.3904" 5536 1e69f821758 tab
    3⤵
    PID:5072

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\dsfbkuj2.default-release\activity-stream.discovery_stream.json.tmp

Filesize
27KB

MD5
995afa21c9b450dcf3c1f98168354094

SHA1
4a4ca6a705f90b5c67c49c48810182d4916e4e8e

SHA256
c623998b4f0f7d8b96dace2613bce4f1767ef4eb3d3cc48a2fe0b925142eba7b

SHA512
e58b02c2a217d21aad4c6965df9214196454751f0ad1037f2b4ba7c9ccf6e49d45e767cba332ee0c482a666276116f506bc4c8abfab71fd5604077eae253a910

Download Submit
C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\dsfbkuj2.default-release\cache2\entries\C72D4296C2EBC6FD41A9F780CD0C8F30F0FF937C

Filesize
13KB

MD5
08df72bdf1bad620bac960a2972e797c

SHA1
1694236717bf08aa9483008e704b708c71c6a4cb

SHA256
b87674027e7da2d7b0298bb8d1677d7dd29a51c4925a91dc3b94884a567f3f24

SHA512
bb18fe87ba1273ee0464b6744cdb32d2fa14189492c7314162024d0e8d040c195f79d6b4dac026f282d4c10b72d7a0d5be110daa81b66c04cc7e1ae2bacffa17

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\dsfbkuj2.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\dsfbkuj2.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\dsfbkuj2.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\dsfbkuj2.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\dsfbkuj2.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\dsfbkuj2.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\dsfbkuj2.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\dsfbkuj2.default-release\prefs-1.js

Filesize
7KB

MD5
1fb55332b6bffe765c9d7e8898fbd368

SHA1
119ec1563b1af518fd74431d4261ae96a883b7e6

SHA256
1947e9a75dd7499c36722ea69595ffa0cefb9d8315b1b5acdff0db74f5cd6548

SHA512
8834b00db3349e1aa677545660a8bdbce87eb23c122f96ca8ac530f3ac777878aa84a2c0df7e419006a6cb34bb7d870eb38bebb42d3d829ec144140a5219b397

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\dsfbkuj2.default-release\prefs-1.js

Filesize
7KB

MD5
3a8776833697713bdf9df33565a3e3f3

SHA1
6b64c59995f435d022258eb851ca12c82337076c

SHA256
32d7117196742243c8f35734d29898e59f805006e27fd03378e4148fcac21633

SHA512
684ded0d1678d528176971300a4630d0ea754e6991163a60ec6a35051ab770c5024089f2cc75b218fc99b27a5fde169bcfadc8a5e11721f19e9e2b086a958fe1

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\dsfbkuj2.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
1KB

MD5
2074dbc94f606e77a0a914bf924823b8

SHA1
8071f94c318fb2b8c8ae4bc9f8f6e99a702d79d3

SHA256
485e0ab773cd7740267a885a46c2b9ea52b88682f93fbbc95f092f8f11f06880

SHA512
022791311390783a1b5b364d48b752c71f337af9b780f53a2354412eeb56e00cc89ce40bddb4db12f6e6935fd2527c39518d9ef137f5d5d9a71bcdd1e42d98a2

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\dsfbkuj2.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
1015B

MD5
c1760fd84877ae98c4c1f2658932fa2e

SHA1
7a36be782aad0a66e47e9e2360f23e019cce22d1

SHA256
991345e18336997426e87b852ea4713ac9aad6698f057cf10da363c73975cf48

SHA512
c47c00c7e2ef7c772344c658dddacc4f4296f3b854c177ca8369f53eb97c5acc83832816a54bc802c020414ff916703591548ecb31f60e3d98b0e6bc305b2f60

Download Submit