578bd705fdf85e864f09780e885c2a04305a719038b66b2ff5639bf2572600de

General

Target

a.exe
Size

165KB
MD5

ab291dfdae1f44bd81ec75de9dd657d6
SHA1

3cfca0456d8037e9759bce00991bd06d6dab8c86
SHA256

578bd705fdf85e864f09780e885c2a04305a719038b66b2ff5639bf2572600de
SHA512

71239480308c81ff5f4cde60cb54d05e37cb966ed276dd01cd70536728474d5f412aada83504890c065b6e34ff354fc5920f12b9ccd9a11875711fcffffc5cea
SSDEEP

3072:fP8VpD/T68Q8wsWMS1kDGo/JzlJCFEw2iNb0Zr15bO:fP8V2f1k7/JBYW/ebmO

Score

7^/10

discovery persistence

Malware Config

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	a.exe

Executes dropped EXE 1 IoCs

pid	Process
3916	x64dbg.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\x64dbg.exe = "\"C:\\Windows\\x64dbg.exe\" .."	x64dbg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\x64dbg.exe = "\"C:\\Windows\\x64dbg.exe\" .."	x64dbg.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\x64dbg.exe	a.exe
File opened for modification	C:\Windows\x64dbg.exe	x64dbg.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x64dbg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1136	schtasks.exe
1860	schtasks.exe
3804	schtasks.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3916	x64dbg.exe
Token: 33	3916	x64dbg.exe
Token: SeIncBasePriorityPrivilege	3916	x64dbg.exe
Token: 33	3916	x64dbg.exe
Token: SeIncBasePriorityPrivilege	3916	x64dbg.exe
Token: 33	3916	x64dbg.exe
Token: SeIncBasePriorityPrivilege	3916	x64dbg.exe
Token: 33	3916	x64dbg.exe
Token: SeIncBasePriorityPrivilege	3916	x64dbg.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 3196	2304	a.exe	82
PID 2304 wrote to memory of 3196	2304	a.exe	82
PID 2304 wrote to memory of 3196	2304	a.exe	82
PID 2304 wrote to memory of 1136	2304	a.exe	84
PID 2304 wrote to memory of 1136	2304	a.exe	84
PID 2304 wrote to memory of 1136	2304	a.exe	84
PID 2172 wrote to memory of 5044	2172	a.exe	88
PID 2172 wrote to memory of 5044	2172	a.exe	88
PID 2172 wrote to memory of 5044	2172	a.exe	88
PID 2172 wrote to memory of 1860	2172	a.exe	90
PID 2172 wrote to memory of 1860	2172	a.exe	90
PID 2172 wrote to memory of 1860	2172	a.exe	90
PID 2304 wrote to memory of 3916	2304	a.exe	92
PID 2304 wrote to memory of 3916	2304	a.exe	92
PID 2304 wrote to memory of 3916	2304	a.exe	92
PID 3916 wrote to memory of 1444	3916	x64dbg.exe	93
PID 3916 wrote to memory of 1444	3916	x64dbg.exe	93
PID 3916 wrote to memory of 1444	3916	x64dbg.exe	93
PID 3916 wrote to memory of 3804	3916	x64dbg.exe	95
PID 3916 wrote to memory of 3804	3916	x64dbg.exe	95
PID 3916 wrote to memory of 3804	3916	x64dbg.exe	95

C:\Users\Admin\AppData\Local\Temp\a.exe
"C:\Users\Admin\AppData\Local\Temp\a.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3196
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\a.exe" /sc minute /mo 1
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1136
- C:\Windows\x64dbg.exe
  "C:\Windows\x64dbg.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3916
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /tn NYAN /F
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1444
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn NYAN /tr "C:\Windows\x64dbg.exe" /sc minute /mo 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3804

C:\Users\Admin\AppData\Local\Temp\a.exe
C:\Users\Admin\AppData\Local\Temp\a.exe
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5044
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\a.exe" /sc minute /mo 1
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\a.exe.log

Filesize
408B

MD5
40b0c3caa1b14a4c83e8475c46bf2016

SHA1
af9575cda4d842f028d18b17063796a894ecd9d0

SHA256
70e88a428d92b6ab5905dac9f324824c4c6f120bc3f385c82b2d12f707a4a867

SHA512
916437df737de4b6063b7116b4d148229d4a975eb4046122d47434b81fba06e88e09e5f273ec496c81ef3feecb843ccad20a7a04074224416c1fa9951acbdac7

Download Submit
C:\Windows\x64dbg.exe

Filesize
165KB

MD5
ab291dfdae1f44bd81ec75de9dd657d6

SHA1
3cfca0456d8037e9759bce00991bd06d6dab8c86

SHA256
578bd705fdf85e864f09780e885c2a04305a719038b66b2ff5639bf2572600de

SHA512
71239480308c81ff5f4cde60cb54d05e37cb966ed276dd01cd70536728474d5f412aada83504890c065b6e34ff354fc5920f12b9ccd9a11875711fcffffc5cea

Download Submit
memory/2172-3-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/2172-4-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/2172-18-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-0-0x0000000074932000-0x0000000074933000-memory.dmp

Filesize
4KB

Download
memory/2304-1-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-2-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-10-0x0000000074932000-0x0000000074933000-memory.dmp

Filesize
4KB

Download
memory/2304-11-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-16-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads