f6baf2cbb7e86d3c1e140b0cc62dec7de55cc5359eeee7eda6f21ce0a00c13e9

General

Target

TT-4.exe
Size

307KB
MD5

19295d360b9ca2678d757d87d9445a65
SHA1

ac9d2e9364f8914004af53406627e04fc8ce2b9d
SHA256

f6baf2cbb7e86d3c1e140b0cc62dec7de55cc5359eeee7eda6f21ce0a00c13e9
SHA512

25af690a903a1cac3716bfe347dd5ef3f68b2cf5da227603b37d003e47a0b6394a77d69b48a9b430cbbbf9f309a4c8eff3eee58d13326b99c755d399c892c156

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

RegAsm.exeRegAsm.exe

pid process

268 RegAsm.exe
580 RegAsm.exe
Loads dropped DLL 3 IoCs

Processes:

TT-4.exeRegAsm.exe

pid process

1092 TT-4.exe
1092 TT-4.exe
580 RegAsm.exe

pid	process
268	RegAsm.exe
580	RegAsm.exe

pid	process
1092	TT-4.exe
1092	TT-4.exe
580	RegAsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

TT-4.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\CertEnrollCtrl = "\"C:\\Users\\Admin\\AppData\\Roaming\\CertEnrollCtrl\\CertEnrollCtrl.exe\""	TT-4.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

TT-4.exe

description pid process target process

PID 1092 set thread context of 580 1092 TT-4.exe RegAsm.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

RegAsm.exe

pid process

580 RegAsm.exe
Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

TT-4.exe

pid process

1092 TT-4.exe
1092 TT-4.exe
1092 TT-4.exe
1092 TT-4.exe
1092 TT-4.exe
1092 TT-4.exe
1092 TT-4.exe
1092 TT-4.exe
1092 TT-4.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

TT-4.exe

description pid process

Token: SeDebugPrivilege 1092 TT-4.exe

description	pid	process	target process
PID 1092 set thread context of 580	1092	TT-4.exe	RegAsm.exe

pid	process
580	RegAsm.exe

pid	process
1092	TT-4.exe
1092	TT-4.exe
1092	TT-4.exe
1092	TT-4.exe
1092	TT-4.exe
1092	TT-4.exe
1092	TT-4.exe
1092	TT-4.exe
1092	TT-4.exe

description	pid	process
Token: SeDebugPrivilege	1092	TT-4.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

TT-4.exe

description	pid	process	target process
PID 1092 wrote to memory of 268	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 268	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 268	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 268	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 268	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 268	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 268	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe
PID 1092 wrote to memory of 580	1092	TT-4.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\TT-4.exe
"C:\Users\Admin\AppData\Local\Temp\TT-4.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1092
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  2⤵
  - Executes dropped EXE
  PID:268
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: AddClipboardFormatListener
  PID:580

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/580-73-0x000000000040453A-mapping.dmp

Download
memory/580-72-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/580-76-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/580-78-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/580-80-0x00000000057A0000-0x00000000057A1000-memory.dmp

Filesize
4KB

Download
memory/1092-67-0x0000000004B10000-0x0000000004B11000-memory.dmp

Filesize
4KB

Download
memory/1092-60-0x0000000001200000-0x0000000001201000-memory.dmp

Filesize
4KB

Download
memory/1092-62-0x0000000000380000-0x0000000000382000-memory.dmp

Filesize
8KB

Download
memory/1092-68-0x00000000009D0000-0x00000000009E7000-memory.dmp

Filesize
92KB

Download

Analysis

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