4b14b62f1fba0c925ae135f2f5f8047104b1dbbf2cb3378759bb0287ad0e0f40

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 05:05

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General

Target

295035f97f883939e55881990d525b40.exe
Size

13KB
MD5

295035f97f883939e55881990d525b40
SHA1

7f365a65170d8b93d43d264be0f2dba7ce2ebb47
SHA256

4b14b62f1fba0c925ae135f2f5f8047104b1dbbf2cb3378759bb0287ad0e0f40
SHA512

f68731390d51b40a3cfa7062df965272e5118ad17305957f83761226c76a0e7915527c3f8413947fdce0dca7ba9687082d47f0299da780d461de5c96726da7ba
SSDEEP

384:1rNakzT8njwB6e1VxP/piFlB30uC8pQXg:5hgnMB6eJIV30ip

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
416	sunonyk.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/64-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/files/0x000300000002274f-5.dat	upx
behavioral2/memory/64-6-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/416-7-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sunony.dll	295035f97f883939e55881990d525b40.exe
File created	C:\Windows\SysWOW64\sunonyk.exe	295035f97f883939e55881990d525b40.exe
File opened for modification	C:\Windows\SysWOW64\sunonyk.exe	295035f97f883939e55881990d525b40.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
64	295035f97f883939e55881990d525b40.exe
64	295035f97f883939e55881990d525b40.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 64 wrote to memory of 416	64	295035f97f883939e55881990d525b40.exe	90
PID 64 wrote to memory of 416	64	295035f97f883939e55881990d525b40.exe	90
PID 64 wrote to memory of 416	64	295035f97f883939e55881990d525b40.exe	90
PID 64 wrote to memory of 1304	64	295035f97f883939e55881990d525b40.exe	98
PID 64 wrote to memory of 1304	64	295035f97f883939e55881990d525b40.exe	98
PID 64 wrote to memory of 1304	64	295035f97f883939e55881990d525b40.exe	98

C:\Users\Admin\AppData\Local\Temp\295035f97f883939e55881990d525b40.exe
"C:\Users\Admin\AppData\Local\Temp\295035f97f883939e55881990d525b40.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:64
- C:\Windows\SysWOW64\sunonyk.exe
  C:\Windows\system32\sunonyk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:416
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\295035f97f883939e55881990d525b40.exe.bat
  2⤵
  PID:1304

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\295035f97f883939e55881990d525b40.exe.bat

Filesize
182B

MD5
fec4cd61023b33d73e90807c75fdaeab

SHA1
88c5154cb44823807e008817616fddaf3ada34ec

SHA256
236ebcc5059633b7cd468f969808f32250e9364aab3ff49fa0383d558346946f

SHA512
536aa6224385d8be820ed1e10ea5dd66dec0be09972048404e3150f4c58c3bed81436f553e0db1993021281c5e05871ddf0f84c8774949504258b37fd1299e46

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

Filesize
13KB

MD5
295035f97f883939e55881990d525b40

SHA1
7f365a65170d8b93d43d264be0f2dba7ce2ebb47

SHA256
4b14b62f1fba0c925ae135f2f5f8047104b1dbbf2cb3378759bb0287ad0e0f40

SHA512
f68731390d51b40a3cfa7062df965272e5118ad17305957f83761226c76a0e7915527c3f8413947fdce0dca7ba9687082d47f0299da780d461de5c96726da7ba

Download Submit
memory/64-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/64-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/416-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download