8d5148057cf0c4607b311819dbd0dce1ea8692cb88531ef74c0b40081fdce2c2

Analysis

max time kernel
164s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 03:27

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General

Target

0cf3e5e0102b875a03bbc8492defc43c.exe
Size

13KB
MD5

0cf3e5e0102b875a03bbc8492defc43c
SHA1

a2de66169a53daed3d27c9bf9303617ea4407d33
SHA256

8d5148057cf0c4607b311819dbd0dce1ea8692cb88531ef74c0b40081fdce2c2
SHA512

01bd5f0e01646f70788fe5153d6dcf4e677f3e733b04a545ba560e2b0d269fa26ca1973af8a84775d0177ce091bc9b65b2a4022033e5acb744d57b399e0d7b5a
SSDEEP

192:smpfxUbuk4oef2fnj8b7zteiXzzWCpDGZ6beZj7KbvKZzfVPDkFYywzSl+E1O2Fc:5pfQu1/f2rUPt9fWr669ubv4zfGGPx

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
1436	craoek.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3992-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x000400000001e7dc-4.dat	upx
behavioral2/memory/3992-6-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/1436-8-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\craoek.exe	0cf3e5e0102b875a03bbc8492defc43c.exe
File created	C:\Windows\SysWOW64\craoe.dll	0cf3e5e0102b875a03bbc8492defc43c.exe
File created	C:\Windows\SysWOW64\craoek.exe	0cf3e5e0102b875a03bbc8492defc43c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3992 wrote to memory of 1436	3992	0cf3e5e0102b875a03bbc8492defc43c.exe	91
PID 3992 wrote to memory of 1436	3992	0cf3e5e0102b875a03bbc8492defc43c.exe	91
PID 3992 wrote to memory of 1436	3992	0cf3e5e0102b875a03bbc8492defc43c.exe	91
PID 3992 wrote to memory of 1636	3992	0cf3e5e0102b875a03bbc8492defc43c.exe	97
PID 3992 wrote to memory of 1636	3992	0cf3e5e0102b875a03bbc8492defc43c.exe	97
PID 3992 wrote to memory of 1636	3992	0cf3e5e0102b875a03bbc8492defc43c.exe	97

C:\Users\Admin\AppData\Local\Temp\0cf3e5e0102b875a03bbc8492defc43c.exe
"C:\Users\Admin\AppData\Local\Temp\0cf3e5e0102b875a03bbc8492defc43c.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3992
- C:\Windows\SysWOW64\craoek.exe
  C:\Windows\system32\craoek.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:1436
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\0cf3e5e0102b875a03bbc8492defc43c.exe.bat
  2⤵
  PID:1636

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\0cf3e5e0102b875a03bbc8492defc43c.exe.bat

Filesize
182B

MD5
18651a0edc1111f140fccf5a87451c76

SHA1
6b4bf68211a9f36551526c7113ff0b54721c39d5

SHA256
ef63cc0b777375ba4c8b0f672e58cd8585b731101f757e83f8aeafd8f87722ed

SHA512
086ac600554633f2dd2436d7595df9fbbd7ce478302033e1e77d758183d15c815cd11d60ef1c39dd6b096f67609ce202affcdee6d74cddec0df9661b5b2728ce

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

Filesize
13KB

MD5
0cf3e5e0102b875a03bbc8492defc43c

SHA1
a2de66169a53daed3d27c9bf9303617ea4407d33

SHA256
8d5148057cf0c4607b311819dbd0dce1ea8692cb88531ef74c0b40081fdce2c2

SHA512
01bd5f0e01646f70788fe5153d6dcf4e677f3e733b04a545ba560e2b0d269fa26ca1973af8a84775d0177ce091bc9b65b2a4022033e5acb744d57b399e0d7b5a

Download Submit
memory/1436-8-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3992-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3992-6-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download