hxxps://github[.]com/Viper4K/malware/blob/master/MEMZ/MEMZ[.]bat

Resubmissions

20/06/2024, 14:19

240620-rm2czasamf 7

Analysis

max time kernel
134s
max time network
142s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
20/06/2024, 14:19

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General

Target

https://github.com/Viper4K/malware/blob/master/MEMZ/MEMZ.bat

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 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
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-1-5-21-160447019-1232603106-4168707212-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	firefox.exe
Token: SeDebugPrivilege	1452	firefox.exe
Token: SeDebugPrivilege	1452	firefox.exe
Token: SeDebugPrivilege	1452	firefox.exe
Token: SeDebugPrivilege	1452	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1452	firefox.exe
1452	firefox.exe
1452	firefox.exe
1452	firefox.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1452	firefox.exe
1452	firefox.exe
1452	firefox.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1452	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 2912 wrote to memory of 1452	2912	firefox.exe	73
PID 1452 wrote to memory of 4464	1452	firefox.exe	74
PID 1452 wrote to memory of 4464	1452	firefox.exe	74
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4972	1452	firefox.exe	75
PID 1452 wrote to memory of 4228	1452	firefox.exe	76
PID 1452 wrote to memory of 4228	1452	firefox.exe	76
PID 1452 wrote to memory of 4228	1452	firefox.exe	76

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://github.com/Viper4K/malware/blob/master/MEMZ/MEMZ.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://github.com/Viper4K/malware/blob/master/MEMZ/MEMZ.bat
  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:1452
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1452.0.1326192866\822808518" -parentBuildID 20221007134813 -prefsHandle 1664 -prefMapHandle 1680 -prefsLen 20747 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {fe8340bc-4355-47fa-b6d0-3010a1f9be64} 1452 "\\.\pipe\gecko-crash-server-pipe.1452" 1776 1fa28ef1d58 gpu
    3⤵
    PID:4464
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1452.1.156596692\790541597" -parentBuildID 20221007134813 -prefsHandle 2140 -prefMapHandle 2136 -prefsLen 21608 -prefMapSize 233444 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {8cecf5d0-4234-4fcc-ba0a-a2c387d64fe3} 1452 "\\.\pipe\gecko-crash-server-pipe.1452" 2152 1fa28dee558 socket
    3⤵
    PID:4972
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1452.2.637264847\1154143289" -childID 1 -isForBrowser -prefsHandle 3056 -prefMapHandle 2708 -prefsLen 21646 -prefMapSize 233444 -jsInitHandle 1264 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {1e8403ae-b5eb-4915-9cf6-c3084fa81965} 1452 "\\.\pipe\gecko-crash-server-pipe.1452" 3052 1fa2ccd2e58 tab
    3⤵
    PID:4228
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1452.3.1562167924\2063599354" -childID 2 -isForBrowser -prefsHandle 3484 -prefMapHandle 3480 -prefsLen 26109 -prefMapSize 233444 -jsInitHandle 1264 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {e2518b0b-dbf9-4c0f-a1ed-bc7c46595cfa} 1452 "\\.\pipe\gecko-crash-server-pipe.1452" 3456 1fa2d3b5858 tab
    3⤵
    PID:4396
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1452.4.1232439494\1505044148" -childID 3 -isForBrowser -prefsHandle 4876 -prefMapHandle 4856 -prefsLen 26168 -prefMapSize 233444 -jsInitHandle 1264 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {5c7e731a-1848-4c6f-884c-d560bf37ef55} 1452 "\\.\pipe\gecko-crash-server-pipe.1452" 4872 1fa2fa9b258 tab
    3⤵
    PID:4764
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1452.5.1776207976\870580923" -childID 4 -isForBrowser -prefsHandle 4996 -prefMapHandle 5000 -prefsLen 26168 -prefMapSize 233444 -jsInitHandle 1264 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {8c509373-f67b-42f3-8e98-cf26c8382c1d} 1452 "\\.\pipe\gecko-crash-server-pipe.1452" 5076 1fa2fa9b858 tab
    3⤵
    PID:4256
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1452.6.1758027870\242568402" -childID 5 -isForBrowser -prefsHandle 5192 -prefMapHandle 5196 -prefsLen 26168 -prefMapSize 233444 -jsInitHandle 1264 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {3aa4b39a-9e71-4cb6-93b5-3ad8b6a108f3} 1452 "\\.\pipe\gecko-crash-server-pipe.1452" 5184 1fa2fa9bb58 tab
    3⤵
    PID:3968

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\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\wjyk7j4u.default-release\datareporting\glean\db\data.safe.bin

Filesize
2KB

MD5
a75a2d16ac3e9cf4d9ee76ff0d1855e2

SHA1
787ac7db8bda248b8192ba8d3f01bf29cd389f36

SHA256
7e7fbc80bbbe6757692e4e9c6543a99fa36d0a6ae6c780da045e1410977bf722

SHA512
f54db51f5656b5d4349babdb6a246e8edd4a8f7411b55b265e94cdde0ca9988e539f186f8a207b2ce0cc30e8cf2f956b12752fcba98cade6c3ecd2e3abcf846f

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\wjyk7j4u.default-release\datareporting\glean\pending_pings\bbeb9070-e89d-4055-8bc2-64e2e0fab547

Filesize
746B

MD5
373a2ba1e1a59336a569658b000e9f8c

SHA1
e12a9ad1f02caea4abd54b7e4572ede58502c6ea

SHA256
ea2b47b973a221abca62a7d59701a1e626a7e5b1c66e16325c94ed1012a9c283

SHA512
7a5b6c7680bf5dd33189a5fe7234e2e21217b9e5ea3df97bce10eab91e380fcec5fc38f5a2fd31f190966ac6a348b4579658bbd31dc63edbcd504cdc58c4c32e

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\wjyk7j4u.default-release\datareporting\glean\pending_pings\d8b645aa-fbaf-4ad7-b622-267cb6b13c33

Filesize
10KB

MD5
a19258f981e5b1e83eda25840db1625e

SHA1
9c417364e29e55a3e5192bd58cdb83420b7e12c5

SHA256
fc51e3bbcf16f1ff2c588200d61f3a458defeb7527e7e21b2210dcab89a06587

SHA512
b373d70cbd176068097065e6c035187e695c0a455a4777bc85f5e9cbdcc33c86e08777d5c31b20e3d065f9bcb6db82705b62311c8515ad5088cd631916ff80ce

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\wjyk7j4u.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\wjyk7j4u.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\wjyk7j4u.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\wjyk7j4u.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\wjyk7j4u.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\wjyk7j4u.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\wjyk7j4u.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\wjyk7j4u.default-release\prefs-1.js

Filesize
6KB

MD5
a6dad95981db8777644d7b10bff08ee3

SHA1
980bbfbb571cf7e4c61f89cd0868bf4eac4639bf

SHA256
0458991757ff3d3195720387327154acc93cd5bea69185c404be4a35e2da1566

SHA512
2be236ad03caa3e91cd6fbf1d1be2fbac4cb7b58bdf397c1eb621f7ce16236aaf1d0ba7469b540690eee469b318580978eebaa9d977058e8408fe7baeb7ba1b8

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\wjyk7j4u.default-release\prefs.js

Filesize
6KB

MD5
e66a2b9e3dba3845578b2f6e783dbece

SHA1
d8528d35e6ab236ab5de19053e1ef9028edb60c3

SHA256
57335bd93a82066d836597273d73e0ba27e6e45b0905fd5d832f1564a25246bc

SHA512
bbf3a820e0666fcd38ad9c5a266a6f47e8d3f1e05f83ca9e47cd75ff11eb43bfe7da3b7ebf6e9bdb9e8f073de49b0f3299a0e3fbe6728d2d4be5bd2b51d58a68

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\wjyk7j4u.default-release\prefs.js

Filesize
6KB

MD5
b443f810575e9552eee4042168011b66

SHA1
912638d8a2eca0a720c94b228025f2b031deea11

SHA256
90f3e2b33983ae7256222f010e6dadd0b37704f9806eb33bdffc214ecd2412f4

SHA512
9961245a7005f091817aef7090c73ec5a642aa0870c4d95e1c81d1990dfb408d77f18589f3af40dc59f54c61844debf3fa929a87cc8b8e94c27e8ed4aeaaf979

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\wjyk7j4u.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
3KB

MD5
2c8042ea4baed93e6c1effe934779abd

SHA1
0eb480645fdf177c6a1d4f4683acb5b5168bf62a

SHA256
8cd3159c234e1e676e1b6ad4672b71f9f45b960fda54e480608f24bf297776cb

SHA512
1968e99853cb5f597bf541d0c2fea3359f6dc3dd3d511c3b960a1d6626e886adf6d6e98c5a2187d57dc382e36920a924c8a30378a171f4e8492cd5c02efdd12d

Download Submit