8c2d492a00252630314fb60e091a4a23f6daf29198c685860108f915813f0e75

Analysis

max time kernel
149s
max time network
157s
platform
windows10-1703_x64
resource
win10-20231215-en
resource tags

arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-x64system
submitted
01-02-2024 20:59

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General

Target

UltraFuck.luac
Size

148KB
MD5

f68f911a22031fd61e52ff06245b30b9
SHA1

017cd406a22f94e438799fce998f0de82d2008ad
SHA256

8add7b0b389fa5cfb0ebc9fc5da10c8b9c29c1068748708440f9d9e72958d4bc
SHA512

177a4f53feb5c0561608bd19d7ca14735be34577d4b5d89bb9e47d219c797bec1a5dc4324e5ff3e98af294030736e0b5acb64ce56d154aa4d8a008e85e9e92c7
SSDEEP

3072:kISUKOHpGU7jbzFkaQ5Bjf3e6bP1b66rOcvyLaLorNkVc:ZLfpVnaaQDrPR661qmaNkVc

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 8 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

firefox.exefirefox.exe

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

Processes:

cmd.exeOpenWith.exefirefox.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1526633464-1149972181-4216821683-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-1526633464-1149972181-4216821683-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1526633464-1149972181-4216821683-1000_Classes\Local Settings	firefox.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

OpenWith.exe

pid process

4332 OpenWith.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

firefox.exe

description pid process

Token: SeDebugPrivilege 4664 firefox.exe
Token: SeDebugPrivilege 4664 firefox.exe
Token: SeDebugPrivilege 4664 firefox.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

firefox.exe

pid process

4664 firefox.exe
4664 firefox.exe
4664 firefox.exe
4664 firefox.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

firefox.exe

pid process

4664 firefox.exe
4664 firefox.exe
4664 firefox.exe

description	pid	process
Token: SeDebugPrivilege	4664	firefox.exe
Token: SeDebugPrivilege	4664	firefox.exe
Token: SeDebugPrivilege	4664	firefox.exe

pid	process
4664	firefox.exe
4664	firefox.exe
4664	firefox.exe
4664	firefox.exe

pid	process
4664	firefox.exe
4664	firefox.exe
4664	firefox.exe

Suspicious use of SetWindowsHookEx 35 IoCs

Processes:

OpenWith.exefirefox.exe

pid	process
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4332	OpenWith.exe
4664	firefox.exe
4664	firefox.exe
4664	firefox.exe
4664	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

OpenWith.exefirefox.exefirefox.exe

description	pid	process	target process
PID 4332 wrote to memory of 4632	4332	OpenWith.exe	firefox.exe
PID 4332 wrote to memory of 4632	4332	OpenWith.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4632 wrote to memory of 4664	4632	firefox.exe	firefox.exe
PID 4664 wrote to memory of 4172	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 4172	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 3700	4664	firefox.exe	firefox.exe
PID 4664 wrote to memory of 4636	4664	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:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\UltraFuck.luac
1⤵
- Modifies registry class
PID:4692

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4332

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "C:\Users\Admin\AppData\Local\Temp\UltraFuck.luac"
2⤵
- Suspicious use of WriteProcessMemory
PID:4632

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url C:\Users\Admin\AppData\Local\Temp\UltraFuck.luac
3⤵
- 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:4664

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4664.0.751640771\1989664278" -parentBuildID 20221007134813 -prefsHandle 1716 -prefMapHandle 1708 -prefsLen 20747 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {5cca0fe3-798b-4df2-a49e-fa703cf3b535} 4664 "\\.\pipe\gecko-crash-server-pipe.4664" 1796 1bf53ec5d58 gpu
4⤵
PID:4172

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4664.1.1551981797\835414216" -parentBuildID 20221007134813 -prefsHandle 2160 -prefMapHandle 2156 -prefsLen 21608 -prefMapSize 233444 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {52cfde43-785a-48af-b5da-97d46309f8f1} 4664 "\\.\pipe\gecko-crash-server-pipe.4664" 2172 1bf53e03258 socket
4⤵
- Checks processor information in registry
PID:3700

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4664.2.1283022438\741699994" -childID 1 -isForBrowser -prefsHandle 2764 -prefMapHandle 2744 -prefsLen 21711 -prefMapSize 233444 -jsInitHandle 1184 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {3ba3d4b3-820a-481e-95f3-02488d374c59} 4664 "\\.\pipe\gecko-crash-server-pipe.4664" 2800 1bf580d6958 tab
4⤵
PID:4636

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4664.3.22797105\1988273141" -childID 2 -isForBrowser -prefsHandle 3368 -prefMapHandle 3364 -prefsLen 26109 -prefMapSize 233444 -jsInitHandle 1184 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {26efa2e7-e683-4937-b843-c8a2514bb063} 4664 "\\.\pipe\gecko-crash-server-pipe.4664" 3412 1bf41b63e58 tab
4⤵
PID:1700

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4664.5.956512082\1539260109" -childID 4 -isForBrowser -prefsHandle 5000 -prefMapHandle 5004 -prefsLen 26343 -prefMapSize 233444 -jsInitHandle 1184 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {b810f5a6-23d1-4308-b706-dba2ea5ad5fc} 4664 "\\.\pipe\gecko-crash-server-pipe.4664" 4992 1bf5a8bd258 tab
4⤵
PID:3628

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4664.4.957173066\788673070" -childID 3 -isForBrowser -prefsHandle 4808 -prefMapHandle 4840 -prefsLen 26343 -prefMapSize 233444 -jsInitHandle 1184 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {c54bafd3-0b31-4f89-9514-28aa780f4642} 4664 "\\.\pipe\gecko-crash-server-pipe.4664" 4852 1bf5a8bc358 tab
4⤵
PID:2264

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="4664.6.1648709649\1455302757" -childID 5 -isForBrowser -prefsHandle 5276 -prefMapHandle 5272 -prefsLen 26343 -prefMapSize 233444 -jsInitHandle 1184 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {f832e41f-2cf2-45a0-ac15-4c188f2234c9} 4664 "\\.\pipe\gecko-crash-server-pipe.4664" 5292 1bf566e2258 tab
4⤵
PID:1492

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n69gspjk.default-release\datareporting\glean\db\data.safe.bin
Filesize
2KB

MD5
1920e8dda160be4f83880b3f71a1de17

SHA1
4aca4a2572ff3cff4058d709472c405b5e960297

SHA256
c5e8e62067b8261c4fe1605a9ffc9bbf873602d0fbf6e892b59cf605a22b3d9d

SHA512
b5ab57fa8f7ea65e12852a250fd2c18864f267f6c4d42028a23f931b97d646db541a878e8ef60d14a765c10187ae384903b5c70db33c0edc3a2d06d4012fc35f

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n69gspjk.default-release\datareporting\glean\pending_pings\78beda1b-e04a-4a50-99e2-72149abe53e1
Filesize
11KB

MD5
18a70f4fac64ec4d10ba9f519f34c87b

SHA1
e67b221dfde3d36d8c69b8f7863f3691c180ed5c

SHA256
015ae4f81dc26d29ca4903216f1ab7449a0069b853ec4122b248b77e5b0f36fb

SHA512
80c39586c61cff85a68c5a5a5e93276414b040f92b174fb7a94b77dfef1966693ca0346ec20bd46df17181fddc674004384151617bb08793f61a02a07a724906

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n69gspjk.default-release\datareporting\glean\pending_pings\ef8130cb-fb67-44bc-8f50-740d9301ac43
Filesize
746B

MD5
b7972ba32ee67fd1626237b156e50b2c

SHA1
bf03f875101438e6030a22ba63fdf3a6a2fb58a6

SHA256
06060ebbe2212b048ba2940285cfad9265304e30f5803ee472173def5fe44ccc

SHA512
6d2cce755472e1c8cad9fbc0d8da6212929ee413f4930393333e1c3d30560519b375d9033949783b81ee413c6dac8f29a61b77a91e5299eadbc19c848485a3c4

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n69gspjk.default-release\prefs-1.js
Filesize
6KB

MD5
54abacee7963c6c445c6ccb32e918e2d

SHA1
4a39ffa5bb11cfcd0a4b461bb26d533b7263c23b

SHA256
4a4f92c20774fdcc217ed2509c5d5b036731263f10ccb31ce9e7424ba0b217bc

SHA512
528b9555c06e4d010ae1bd151369f0f7114fe774071b2488acb90c9bf4175e0f7b2f15e72535e60d55a692f0187413ca4ebf8228449dbaaea1abb01c7e0e9202

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n69gspjk.default-release\prefs.js
Filesize
6KB

MD5
6f218c403213de272c86e4f91988c060

SHA1
916621371f521e90678ff81fc4201efff7168f4b

SHA256
94af489bc5c706caffe7ed468ff30d083a76fb43df2ade150231865814e7d67a

SHA512
2067fa14f6a8932be6f16ff4516b5a13f9aa350d01994b1ffeae4b65f6569985a31082f9d198af698eaeda4ca84ec89f8e00ff1e609ca72885e4ecc8488f512b

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n69gspjk.default-release\prefs.js
Filesize
6KB

MD5
9316cc97a3ea115c33eb6042fff6aed0

SHA1
0d8debcdfd9ce7829794b433a06a97022e016c63

SHA256
eea45ed0072700bc31af879b3e2b83b7a5501cbf6128dd0334e1327da49dac3c

SHA512
6a3265e82c6dc2deef25326b6f822d0a64b5ae4fbcdadd74da743a79985642acbb585605e2a1a9191b4f18d667602df88c139c45cc3acad2c00cac9a634efc38

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n69gspjk.default-release\sessionstore.jsonlz4
Filesize
651B

MD5
e1f3438305900c7aea68668abcb549b9

SHA1
17517004323c3f7362511bf8185fb713284820a0

SHA256
aea7c90bf73e4329d3f0e3da7aa68d6690aada582bb20040eb5d41cf726d7203

SHA512
a6e7cb20aaf3fc871517ecdd36b5a086da129d50e3ab198c64a7180e8974ecdffae2600bdf73c9f12b26798705f64432b474d5f0adda8aab5401f8408251b4cb

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n69gspjk.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
Filesize
184KB

MD5
9eb79b3d53e352ef92c5c86a1b24ff21

SHA1
5932783b9840865da29a071ba4811377f5bd7579

SHA256
06969407bf1c51fb2bbba374b6b6c721223ab54503f2abccb5978e5154d57df5

SHA512
05fd360b46862dd9817e87b966bcc91858ebb7773a5695b1bbf4647d3d8d72b8c75e20bdc97b8e82bb63cda1abf4c4d25422d72847f16e28630ba723dda46335

Download Submit
C:\Users\Admin\Downloads\0FN5hry4.luac.part
Filesize
148KB

MD5
f68f911a22031fd61e52ff06245b30b9

SHA1
017cd406a22f94e438799fce998f0de82d2008ad

SHA256
8add7b0b389fa5cfb0ebc9fc5da10c8b9c29c1068748708440f9d9e72958d4bc

SHA512
177a4f53feb5c0561608bd19d7ca14735be34577d4b5d89bb9e47d219c797bec1a5dc4324e5ff3e98af294030736e0b5acb64ce56d154aa4d8a008e85e9e92c7

Download Submit