201e27ef992cab915c3c6126b2a91f3dbcd98992ef9ea966794f8cbca7c7a316

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2024 18:47

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General

Target

544bba2ee6b106b5c925f94f94ef1b80.exe
Size

13KB
MD5

544bba2ee6b106b5c925f94f94ef1b80
SHA1

c24c74af02fe4b197a50bbee8869e717b7f09228
SHA256

201e27ef992cab915c3c6126b2a91f3dbcd98992ef9ea966794f8cbca7c7a316
SHA512

90ca0aa079e5a775d05304a0471a9facc70404997575fd4328f0e8899cc4aedf76d6e5f0f51682aa968c7ac35d289dbcc395f372d121c211e61359486abdaf59
SSDEEP

192:bS+xmlwICQ7NX1X7ua0iGWiOjSjkmEjOWs7AdKXVI1Uqtz5k0aNJ:2CmpCQZlX6XiVewmIJsEKXM+0az

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
1244	craoek.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1852-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x000700000002320d-4.dat	upx
behavioral2/memory/1244-7-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/1852-6-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\craoek.exe	544bba2ee6b106b5c925f94f94ef1b80.exe
File created	C:\Windows\SysWOW64\craoe.dll	544bba2ee6b106b5c925f94f94ef1b80.exe
File created	C:\Windows\SysWOW64\craoek.exe	544bba2ee6b106b5c925f94f94ef1b80.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 1244	1852	544bba2ee6b106b5c925f94f94ef1b80.exe	24
PID 1852 wrote to memory of 1244	1852	544bba2ee6b106b5c925f94f94ef1b80.exe	24
PID 1852 wrote to memory of 1244	1852	544bba2ee6b106b5c925f94f94ef1b80.exe	24
PID 1852 wrote to memory of 1552	1852	544bba2ee6b106b5c925f94f94ef1b80.exe	104
PID 1852 wrote to memory of 1552	1852	544bba2ee6b106b5c925f94f94ef1b80.exe	104
PID 1852 wrote to memory of 1552	1852	544bba2ee6b106b5c925f94f94ef1b80.exe	104

C:\Users\Admin\AppData\Local\Temp\544bba2ee6b106b5c925f94f94ef1b80.exe
"C:\Users\Admin\AppData\Local\Temp\544bba2ee6b106b5c925f94f94ef1b80.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Windows\SysWOW64\craoek.exe
  C:\Windows\system32\craoek.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:1244
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\544bba2ee6b106b5c925f94f94ef1b80.exe.bat
  2⤵
  PID:1552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

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\544bba2ee6b106b5c925f94f94ef1b80.exe.bat

Filesize
182B

MD5
737136718821bde744b4e7bf569487dc

SHA1
c57621792d7dd8a255bc2616c3b8ba6b673f54cb

SHA256
3e981d612bcea5147832e51ccc26e5431da7945838b7a09f7a56c9ff40f3db33

SHA512
b73296d7a0508d78014629ee36de25c875e2b9adf87cb750d9c05667d4f6193b42092eecaadd5f0c008393c756532824830a62bc4bd5c612b6b111a5df637767

Download Submit
C:\Windows\SysWOW64\craoek.exe

Filesize
13KB

MD5
544bba2ee6b106b5c925f94f94ef1b80

SHA1
c24c74af02fe4b197a50bbee8869e717b7f09228

SHA256
201e27ef992cab915c3c6126b2a91f3dbcd98992ef9ea966794f8cbca7c7a316

SHA512
90ca0aa079e5a775d05304a0471a9facc70404997575fd4328f0e8899cc4aedf76d6e5f0f51682aa968c7ac35d289dbcc395f372d121c211e61359486abdaf59

Download Submit
memory/1244-7-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1852-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1852-6-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download