738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

General

Target

738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe
Size

420KB
MD5

7dda3df33113e1c532e2c4cdbe0af31b
SHA1

9085cf53ff1620974289b6401791cb793c25582b
SHA256

738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080
SHA512

cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974
SSDEEP

6144:a8hbeHNyI7qy0LgPOcVHDnnY8bRZ+eHm+yn8vQ8w9ths+YMNoK2aZ3azO:Zh67q0jnnYUmqvEs+YMZ9Z3uO

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1120	atvhuw.exe

Deletes itself 1 IoCs

pid	Process
1544	cmd.exe

Loads dropped DLL 3 IoCs

pid	Process
1544	cmd.exe
1544	cmd.exe
1120	atvhuw.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
1712	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1164	PING.EXE

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1712	taskkill.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe
1120	atvhuw.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 1544	916	738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe	28
PID 916 wrote to memory of 1544	916	738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe	28
PID 916 wrote to memory of 1544	916	738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe	28
PID 916 wrote to memory of 1544	916	738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe	28
PID 1544 wrote to memory of 1712	1544	cmd.exe	30
PID 1544 wrote to memory of 1712	1544	cmd.exe	30
PID 1544 wrote to memory of 1712	1544	cmd.exe	30
PID 1544 wrote to memory of 1712	1544	cmd.exe	30
PID 1544 wrote to memory of 1164	1544	cmd.exe	32
PID 1544 wrote to memory of 1164	1544	cmd.exe	32
PID 1544 wrote to memory of 1164	1544	cmd.exe	32
PID 1544 wrote to memory of 1164	1544	cmd.exe	32
PID 1544 wrote to memory of 1120	1544	cmd.exe	33
PID 1544 wrote to memory of 1120	1544	cmd.exe	33
PID 1544 wrote to memory of 1120	1544	cmd.exe	33
PID 1544 wrote to memory of 1120	1544	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe
"C:\Users\Admin\AppData\Local\Temp\738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 916 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe" & start C:\Users\Admin\AppData\Local\atvhuw.exe -f
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1544
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /pid 916
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1712
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 3 127.1
    3⤵
    - Runs ping.exe
    PID:1164
- - C:\Users\Admin\AppData\Local\atvhuw.exe
    C:\Users\Admin\AppData\Local\atvhuw.exe -f
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:1120

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\atvhuw.exe

Filesize
420KB

MD5
7dda3df33113e1c532e2c4cdbe0af31b

SHA1
9085cf53ff1620974289b6401791cb793c25582b

SHA256
738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

SHA512
cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

Download Submit
C:\Users\Admin\AppData\Local\atvhuw.exe

Filesize
420KB

MD5
7dda3df33113e1c532e2c4cdbe0af31b

SHA1
9085cf53ff1620974289b6401791cb793c25582b

SHA256
738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

SHA512
cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

Download Submit
\Users\Admin\AppData\Local\atvhuw.exe

Filesize
420KB

MD5
7dda3df33113e1c532e2c4cdbe0af31b

SHA1
9085cf53ff1620974289b6401791cb793c25582b

SHA256
738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

SHA512
cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

Download Submit
\Users\Admin\AppData\Local\atvhuw.exe

Filesize
420KB

MD5
7dda3df33113e1c532e2c4cdbe0af31b

SHA1
9085cf53ff1620974289b6401791cb793c25582b

SHA256
738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

SHA512
cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

Download Submit
\Users\Admin\AppData\Local\atvhuw.exe

Filesize
420KB

MD5
7dda3df33113e1c532e2c4cdbe0af31b

SHA1
9085cf53ff1620974289b6401791cb793c25582b

SHA256
738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

SHA512
cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

Download Submit
memory/916-55-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/916-56-0x0000000001000000-0x00000000010A6000-memory.dmp

Filesize
664KB

Download
memory/916-58-0x0000000001000000-0x00000000010A6000-memory.dmp

Filesize
664KB

Download
memory/916-54-0x0000000076711000-0x0000000076713000-memory.dmp

Filesize
8KB

Download
memory/1120-69-0x0000000001000000-0x00000000010A6000-memory.dmp

Filesize
664KB

Download
memory/1120-68-0x0000000001000000-0x00000000010A6000-memory.dmp

Filesize
664KB

Download

Analysis

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