095740b1c9a55ecadf092a977256456eb4e55b98679ca3307e26faa4d9ff76a6

Analysis

max time kernel
171s
max time network
140s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-01-2024 14:49

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General

Target

3d21dd3959166c87ef0fdeaed773998a.exe
Size

859KB
MD5

3d21dd3959166c87ef0fdeaed773998a
SHA1

a351e73c40a33c57054c8485e90de28e6fc60376
SHA256

095740b1c9a55ecadf092a977256456eb4e55b98679ca3307e26faa4d9ff76a6
SHA512

68eb78bb8c4723c95364b92440bcdd050db520d25242bc1fb2ed4c29b3660cea9f6bbd5607d81155f0fc78cac3dc08e348dafa05cf3a95b1895a77a7558e2c05
SSDEEP

24576:I0O+3i+6NjunrVOrE7ofKBeDybRrmFwLTjH:I05VwwVsOmuv7

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2740	mr5.exe

Loads dropped DLL 1 IoCs

pid	Process
2788	3d21dd3959166c87ef0fdeaed773998a.exe

Adds Run key to start application 2 TTPs 4 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\Microsoft Manager 1 = "C:\\Windows\\KlD.exe"	mr5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Manager 2 = "C:\\Windows\\KKl2.exe"	mr5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Manager 3 = "C:\\Windows\\KKl3.exe"	mr5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Manager 4 = "C:\\Windows\\KKl4.exe"	mr5.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2788	3d21dd3959166c87ef0fdeaed773998a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2740	mr5.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2788 wrote to memory of 2740	2788	3d21dd3959166c87ef0fdeaed773998a.exe	27
PID 2788 wrote to memory of 2740	2788	3d21dd3959166c87ef0fdeaed773998a.exe	27
PID 2788 wrote to memory of 2740	2788	3d21dd3959166c87ef0fdeaed773998a.exe	27
PID 2788 wrote to memory of 2740	2788	3d21dd3959166c87ef0fdeaed773998a.exe	27

C:\Users\Admin\AppData\Local\Temp\3d21dd3959166c87ef0fdeaed773998a.exe
"C:\Users\Admin\AppData\Local\Temp\3d21dd3959166c87ef0fdeaed773998a.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Users\Admin\AppData\Local\Temp\mr5.exe
  "C:\Users\Admin\AppData\Local\Temp\mr5.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  PID:2740

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\mr5.exe

Filesize
192KB

MD5
6cdccd3e402831bc64ff749875c1d1d9

SHA1
20739aa83a73599f4fd7fe65906a3c65bff469b1

SHA256
5387f7d6572c83a9df2a18909e463e53907a56eebb5478de07150f7a0360a5a5

SHA512
74df0d0270a22f31f5428db0dc5291ca35f2ac3c66d8818e59aab52313d5b528b128fffe189825c0917dda46ed140e41c06ce2407de0e758ab63b99099ebe40d

Download Submit
memory/2740-7-0x0000000000020000-0x0000000000031000-memory.dmp

Filesize
68KB

Download
memory/2740-8-0x0000000000020000-0x0000000000031000-memory.dmp

Filesize
68KB

Download
memory/2740-9-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2740-10-0x00000000002E0000-0x00000000002E5000-memory.dmp

Filesize
20KB

Download
memory/2740-14-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2740-16-0x0000000000020000-0x0000000000031000-memory.dmp

Filesize
68KB

Download
memory/2788-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2788-13-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/2788-15-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download