edaaa26f500024b459673c81b7d37b8e8281ef5f08de04291662021c3d44673a

General

Target

keyfinder.exe
Size

787KB
MD5

4187dfaf99e89cc211eb3f2bf6af81ca
SHA1

55fc92048228aaab920a9d164dff7ba92117ec82
SHA256

3cf64f198a3a58f608639823ae689cbff75dc475996cbd14ebd16550d9886f1c
SHA512

9ffc1e6f76ad4826abe7ece3dcf0a59c49564f03bb3ebde9a11d8dbaeb5f870cb5d9affcebd001ffe6d84aa6bd34fa8f94851de4d8f2a22e1941002e49b86d61
SSDEEP

12288:XQx8br+SgmYjgVobXcJTEjK25I3yWwR4C0Ecnb/Lxh+khPg85:PfQjUT/25a87inxIX85

Score

6^/10

discovery

Malware Config

Signatures

Checks for any installed AV software in registry 1 TTPs 1 IoCs

Security Software Discovery
T1063

Processes:

keyfinder.exe

description ioc process

Key opened \REGISTRY\MACHINE\Software\Wow6432Node\Avira\AntiVir PersonalEdition Classic keyfinder.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

description	ioc	process
Key opened	\REGISTRY\MACHINE\Software\Wow6432Node\Avira\AntiVir PersonalEdition Classic	keyfinder.exe

Checks processor information in registry 2 TTPs 4 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\~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

Modifies registry class 1 IoCs

Processes:

firefox.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings firefox.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

firefox.exe

description pid process

Token: SeDebugPrivilege 556 firefox.exe
Token: SeDebugPrivilege 556 firefox.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

firefox.exe

pid process

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

Processes:

firefox.exe

pid process

556 firefox.exe
556 firefox.exe
556 firefox.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings	firefox.exe

description	pid	process
Token: SeDebugPrivilege	556	firefox.exe
Token: SeDebugPrivilege	556	firefox.exe

pid	process
556	firefox.exe
556	firefox.exe
556	firefox.exe
556	firefox.exe

pid	process
556	firefox.exe
556	firefox.exe
556	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

firefox.exefirefox.exe

description	pid	process	target process
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 1000 wrote to memory of 556	1000	firefox.exe	firefox.exe
PID 556 wrote to memory of 1336	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1336	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1336	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1444	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1492	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1492	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1492	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1492	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1492	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1492	556	firefox.exe	firefox.exe
PID 556 wrote to memory of 1492	556	firefox.exe	firefox.exe

C:\Users\Admin\AppData\Local\Temp\keyfinder.exe
"C:\Users\Admin\AppData\Local\Temp\keyfinder.exe"
1⤵
- Checks for any installed AV software in registry
PID:2016

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1000

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe"
2⤵
- Checks processor information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:556

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="556.0.133535328\524867488" -parentBuildID 20200403170909 -prefsHandle 1176 -prefMapHandle 1168 -prefsLen 1 -prefMapSize 219933 -appdir "C:\Program Files\Mozilla Firefox\browser" - 556 "\\.\pipe\gecko-crash-server-pipe.556" 1260 gpu
3⤵
PID:1336

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="556.3.1446230067\1901779282" -childID 1 -isForBrowser -prefsHandle 1736 -prefMapHandle 1828 -prefsLen 122 -prefMapSize 219933 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 556 "\\.\pipe\gecko-crash-server-pipe.556" 1804 tab
3⤵
PID:1444

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="556.13.2058592268\1898773439" -childID 2 -isForBrowser -prefsHandle 2360 -prefMapHandle 2356 -prefsLen 6840 -prefMapSize 219933 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 556 "\\.\pipe\gecko-crash-server-pipe.556" 2372 tab
3⤵
PID:1492

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Security Software Discovery

1

T1063

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2016-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing