ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237

General

Target

ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe
Size

132KB
MD5

a0dbec02e61a0cb615463daaabca4004
SHA1

853898dfb4262fbfbb60edbcb6fb9f44d1c14220
SHA256

ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237
SHA512

e1f08cb4dccea95e11a340bc08426a8913c676f242400ce1fb5dba2cb2668147ffb4cab559edbb4a4670a2f560ab19c868ce674ba687f085c47adc44fdafb4fc
SSDEEP

1536:yd+zAUTXwbuVjaajd21dhOfct0G/yZjigL0q3jBnOgOtOTM/jh81ASGLUI5p1kSQ:YsDwbWxZfct0G/uFjxOHImjCcZXaS4

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3200	taskhost.exe
752	taskhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Taskhost = "C:\\Users\\Admin\\AppData\\Roaming\\taskhost.exe"	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1396 set thread context of 2632	1396	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	82
PID 3200 set thread context of 752	3200	taskhost.exe	87

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1556	1396	WerFault.exe	81
2324	3200	WerFault.exe	86

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 2632	1396	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	82
PID 1396 wrote to memory of 2632	1396	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	82
PID 1396 wrote to memory of 2632	1396	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	82
PID 1396 wrote to memory of 2632	1396	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	82
PID 1396 wrote to memory of 2632	1396	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	82
PID 2632 wrote to memory of 3200	2632	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	86
PID 2632 wrote to memory of 3200	2632	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	86
PID 2632 wrote to memory of 3200	2632	ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe	86
PID 3200 wrote to memory of 752	3200	taskhost.exe	87
PID 3200 wrote to memory of 752	3200	taskhost.exe	87
PID 3200 wrote to memory of 752	3200	taskhost.exe	87
PID 3200 wrote to memory of 752	3200	taskhost.exe	87
PID 3200 wrote to memory of 752	3200	taskhost.exe	87

C:\Users\Admin\AppData\Local\Temp\ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe
"C:\Users\Admin\AppData\Local\Temp\ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Users\Admin\AppData\Local\Temp\ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe
  C:\Users\Admin\AppData\Local\Temp\ca7bb8787ca5c97a0236527c7d3225a4bfc25a9e7bbb54e717980c99c0dc2237.exe
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Users\Admin\AppData\Roaming\taskhost.exe
    C:\Users\Admin\AppData\Roaming\taskhost.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3200
  - - C:\Users\Admin\AppData\Roaming\taskhost.exe
      C:\Users\Admin\AppData\Roaming\taskhost.exe
      4⤵
      Executes dropped EXE
      PID:752
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3200 -s 308
      4⤵
      Program crash
      PID:2324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 284
  2⤵
  - Program crash
  PID:1556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1396 -ip 1396
1⤵
PID:1244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3200 -ip 3200
1⤵
PID:2568

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\Roaming\taskhost.exe

Filesize
132KB

MD5
4a6018e354be2f95949143ba93d46836

SHA1
5c286fd9d2af69fcc28da09d4258160ed0d9a641

SHA256
a38ed8f395edc846bfdfbd5abaef0b05acb3d962d6c5b9abd5b5f8b7fe62463d

SHA512
f512ce9f2822ff23fc04c36c0a864c3ea66b19e7050017206e2b4555034ab663cf62396d799dc42e30913d2da355029621c8bc65b33c47e665de48c95cc35b92

Download Submit
C:\Users\Admin\AppData\Roaming\taskhost.exe

Filesize
132KB

MD5
4a6018e354be2f95949143ba93d46836

SHA1
5c286fd9d2af69fcc28da09d4258160ed0d9a641

SHA256
a38ed8f395edc846bfdfbd5abaef0b05acb3d962d6c5b9abd5b5f8b7fe62463d

SHA512
f512ce9f2822ff23fc04c36c0a864c3ea66b19e7050017206e2b4555034ab663cf62396d799dc42e30913d2da355029621c8bc65b33c47e665de48c95cc35b92

Download Submit
C:\Users\Admin\AppData\Roaming\taskhost.exe

Filesize
132KB

MD5
4a6018e354be2f95949143ba93d46836

SHA1
5c286fd9d2af69fcc28da09d4258160ed0d9a641

SHA256
a38ed8f395edc846bfdfbd5abaef0b05acb3d962d6c5b9abd5b5f8b7fe62463d

SHA512
f512ce9f2822ff23fc04c36c0a864c3ea66b19e7050017206e2b4555034ab663cf62396d799dc42e30913d2da355029621c8bc65b33c47e665de48c95cc35b92

Download Submit
memory/752-143-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/752-144-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2632-133-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2632-134-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2632-135-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2632-139-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download

Analysis

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