fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219

General

Target

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Size

512KB
MD5

0188f97a2e988dadb8fbd04c3beb98ca
SHA1

1abe5390514d43ec852232f425766a9b66a08b8c
SHA256

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219
SHA512

04537ac67d3a2a0bf72ee4a83ca01fdd9096731f81a66a549e5c83ed66affe9ee54964542f387f3130b9ca7760bc649e0dd18902128e6d2e5df88d891d297fbd
SSDEEP

6144:WKMfeHFy35sdITzCyLWrx548JXpb1Gsehn08k9OMSkgN36nFtis0K+mhqkb/xX6P:c5HnVLWN5d3ksedWO6nF7wkb/x62AIK

Score

8^/10

persistence upx

Malware Config

Signatures

Sets file execution options in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\thwwejprx.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\thwwejprx.exe\DisableExceptionChainValidation	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/2204-143-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2204-145-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2204-146-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2204-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2204-156-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Checks for any installed AV software in registry 1 TTPs 2 IoCs

Security Software Discovery

T1063

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Avira	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\avast! Antivirus	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description ioc process

File created C:\ProgramData\winsys\desktop.ini fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description	ioc	process
File created	C:\ProgramData\winsys\desktop.ini	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exefd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description	pid	process	target process
PID 2840 set thread context of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 set thread context of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

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

System Information Discovery
T1082

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:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1480 schtasks.exe

pid	process
1480	schtasks.exe

Modifies registry class 6 IoCs

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{7398B426-7D40-284D-8AD8-A8FF3863A671}	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{7398B426-7D40-284D-8AD8-A8FF3863A671}\188503F3	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{7398B426-7D40-284D-8AD8-A8FF3863A671}\188503F3\CG1\HAL = 05ee0000	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{7398B426-7D40-284D-8AD8-A8FF3863A671}\188503F3\CG1\BID = 2000080017000b00e60700001400000017000b000f00000000000000b4007e63	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{7398B426-7D40-284D-8AD8-A8FF3863A671}\188503F3\CG1	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

pid	process
1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

pid process

1968 fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

description	pid	process
Token: SeRestorePrivilege	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Token: SeBackupPrivilege	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
Token: SeDebugPrivilege	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exefd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

pid	process
2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exefd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exefd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe

C:\Users\Admin\AppData\Local\Temp\fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
"C:\Users\Admin\AppData\Local\Temp\fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2840

C:\Users\Admin\AppData\Local\Temp\fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
"C:\Users\Admin\AppData\Local\Temp\fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2204

C:\Users\Admin\AppData\Local\Temp\fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
"C:\Users\Admin\AppData\Local\Temp\fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe"
3⤵
- Sets file execution options in registry
- Checks computer location settings
- Checks for any installed AV software in registry
- Drops desktop.ini file(s)
- Checks processor information in registry
- Modifies registry class
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x188503F3" /TR "C:\ProgramData\winsys\thwwejprx.exe" /RL HIGHEST
4⤵
- Creates scheduled task(s)
PID:1480

C:\Windows\SysWOW64\WerFault.exe
"C:\Windows\SysWOW64\WerFault.exe"
4⤵
PID:3060

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Security Software Discovery

1

T1063

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1480-161-0x0000000000000000-mapping.dmp

Download
memory/1968-151-0x0000000000000000-mapping.dmp

Download
memory/1968-160-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1968-159-0x00000000005B0000-0x00000000005BB000-memory.dmp

Filesize
44KB

Download
memory/1968-158-0x00000000005D0000-0x000000000061B000-memory.dmp

Filesize
300KB

Download
memory/1968-157-0x00000000005D0000-0x000000000061B000-memory.dmp

Filesize
300KB

Download
memory/1968-154-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1968-152-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2204-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2204-156-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2204-142-0x0000000000000000-mapping.dmp

Download
memory/2204-143-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2204-145-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2204-146-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2840-139-0x0000000000660000-0x0000000000670000-memory.dmp

Filesize
64KB

Download
memory/2840-136-0x0000000000620000-0x0000000000630000-memory.dmp

Filesize
64KB

Download
memory/2840-141-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2840-138-0x0000000000650000-0x0000000000660000-memory.dmp

Filesize
64KB

Download
memory/2840-132-0x00000000005E0000-0x00000000005F0000-memory.dmp

Filesize
64KB

Download
memory/2840-140-0x0000000000670000-0x0000000000680000-memory.dmp

Filesize
64KB

Download
memory/2840-137-0x0000000000630000-0x0000000000640000-memory.dmp

Filesize
64KB

Download
memory/2840-147-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2840-135-0x0000000000610000-0x0000000000620000-memory.dmp

Filesize
64KB

Download
memory/2840-134-0x0000000000600000-0x0000000000610000-memory.dmp

Filesize
64KB

Download
memory/2840-133-0x00000000005F0000-0x0000000000600000-memory.dmp

Filesize
64KB

Download
memory/3060-162-0x0000000000000000-mapping.dmp

Download
memory/3060-163-0x0000000000050000-0x00000000000CB000-memory.dmp

Filesize
492KB

Download
memory/3060-164-0x0000000000490000-0x000000000055E000-memory.dmp

Filesize
824KB

Download
memory/3060-165-0x0000000000490000-0x000000000055E000-memory.dmp

Filesize
824KB

Download

description	pid	process	target process
PID 2840 wrote to memory of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2840 wrote to memory of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2840 wrote to memory of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2840 wrote to memory of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2840 wrote to memory of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2840 wrote to memory of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2840 wrote to memory of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2840 wrote to memory of 2204	2840	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 2204 wrote to memory of 1968	2204	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe
PID 1968 wrote to memory of 1480	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	schtasks.exe
PID 1968 wrote to memory of 1480	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	schtasks.exe
PID 1968 wrote to memory of 1480	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	schtasks.exe
PID 1968 wrote to memory of 3060	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	WerFault.exe
PID 1968 wrote to memory of 3060	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	WerFault.exe
PID 1968 wrote to memory of 3060	1968	fd53c6daa769503538325c15b5981102c679e1130b8beb9b24eb9abb9118d219.exe	WerFault.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads