c27a76be77a371d5a596d76c2f3d40085588fc3e8676d027c93d0fe5558ee2cf

General

Target

bdd057f0df9e9f81c06324b26438f965.exe
Size

196KB
MD5

bdd057f0df9e9f81c06324b26438f965
SHA1

227c0c165cf594eb0def9a7738dee46f382d1f95
SHA256

c27a76be77a371d5a596d76c2f3d40085588fc3e8676d027c93d0fe5558ee2cf
SHA512

dadfeede575173260393049ed42003b136eed9f93c46ec3aff0d35dc162d89ba0ad1cce4c2048e9e45eb8cd0e1f3112849a6e9528d4d4539128c35c21c177369
SSDEEP

6144:z279idrV9EUUWuUIPchzMqArUycFAMpxHQ3DQ8rWPv2If/ZrGZ6:SsJLZujP8MqFx2MpxHQ3D3I/Zr

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2576	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2568	mfree.exe

Loads dropped DLL 2 IoCs

pid	Process
2372	bdd057f0df9e9f81c06324b26438f965.exe
2372	bdd057f0df9e9f81c06324b26438f965.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2372-0-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/files/0x00040000000130fc-4.dat	upx
behavioral1/memory/2568-19-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2568-22-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2372-23-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2568-51-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/2372-52-0x0000000000400000-0x0000000000483000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\mfree = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mfree.exe"	mfree.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main	bdd057f0df9e9f81c06324b26438f965.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main	mfree.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2372	bdd057f0df9e9f81c06324b26438f965.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2372	bdd057f0df9e9f81c06324b26438f965.exe
2372	bdd057f0df9e9f81c06324b26438f965.exe
2568	mfree.exe
2568	mfree.exe
2372	bdd057f0df9e9f81c06324b26438f965.exe
2372	bdd057f0df9e9f81c06324b26438f965.exe
2568	mfree.exe
2568	mfree.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2568	2372	bdd057f0df9e9f81c06324b26438f965.exe	28
PID 2372 wrote to memory of 2568	2372	bdd057f0df9e9f81c06324b26438f965.exe	28
PID 2372 wrote to memory of 2568	2372	bdd057f0df9e9f81c06324b26438f965.exe	28
PID 2372 wrote to memory of 2568	2372	bdd057f0df9e9f81c06324b26438f965.exe	28
PID 2372 wrote to memory of 2576	2372	bdd057f0df9e9f81c06324b26438f965.exe	29
PID 2372 wrote to memory of 2576	2372	bdd057f0df9e9f81c06324b26438f965.exe	29
PID 2372 wrote to memory of 2576	2372	bdd057f0df9e9f81c06324b26438f965.exe	29
PID 2372 wrote to memory of 2576	2372	bdd057f0df9e9f81c06324b26438f965.exe	29

C:\Users\Admin\AppData\Local\Temp\bdd057f0df9e9f81c06324b26438f965.exe
"C:\Users\Admin\AppData\Local\Temp\bdd057f0df9e9f81c06324b26438f965.exe"
1⤵
- Loads dropped DLL
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\mfree.exe
  "C:\Users\Admin\AppData\Local\Temp\mfree.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2568
- C:\Windows\SysWOW64\cmd.exe
  cmd /c deleteself.bat
  2⤵
  - Deletes itself
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\deleteself.bat

Filesize
198B

MD5
84d89822d3247b53dfd5fe24b840dedc

SHA1
d2b8e1c3c48211158b1d79d4cb4046156ced7eb8

SHA256
57bbd51ad0a3f79c53c1aa0a0bbae710c22fc8f448816d40e83f8a5c64c83586

SHA512
bf1d6ce11c5bac7942e4d78cd148388c158d8172dba957e1a8fe4c24d7bad785467f8bc1446cee7d1d74a88e149f854ceba0db5f027c9d148231a56b61c9b973

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

Filesize
196KB

MD5
bdd057f0df9e9f81c06324b26438f965

SHA1
227c0c165cf594eb0def9a7738dee46f382d1f95

SHA256
c27a76be77a371d5a596d76c2f3d40085588fc3e8676d027c93d0fe5558ee2cf

SHA512
dadfeede575173260393049ed42003b136eed9f93c46ec3aff0d35dc162d89ba0ad1cce4c2048e9e45eb8cd0e1f3112849a6e9528d4d4539128c35c21c177369

Download Submit
memory/2372-24-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2372-1-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2372-11-0x0000000003060000-0x00000000030E3000-memory.dmp

Filesize
524KB

Download
memory/2372-23-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2372-0-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2372-52-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2568-19-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2568-20-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2568-22-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2568-27-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2568-51-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads