607f109c9809ae9b16aad3a7cf6181f36b312b1769a9bf1fe107f346be841534

Analysis

max time kernel
144s
max time network
148s
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 22:01

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General

Target

1ddf00dcc6828378acab1a31fb31a2ea.exe
Size

69KB
MD5

1ddf00dcc6828378acab1a31fb31a2ea
SHA1

b88a8f8393829346dd28429852db78f150dcccba
SHA256

607f109c9809ae9b16aad3a7cf6181f36b312b1769a9bf1fe107f346be841534
SHA512

b6b0fced1b0fcd244c9b298abb1decfd14b101ad6244e653ba5d57eabde63d8b0ef2f3abbd2eac2f80398deae4b55cc7202479e70dc4accdecbdf1c9c9ff2f75
SSDEEP

768:5ZLJfaE5A6CO3O1pJiX9iMDwTWGTOcP26PeJLCAnAMiyH39Y3wYo3cfWGwKYf0oe:/JfkE3spGnnRiyH39Y3I3YWjrcck955B

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exerundll32.exe

flow pid process

47 1320 rundll32.exe
57 3068 rundll32.exe
58 3068 rundll32.exe
Drops file in Drivers directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts rundll32.exe
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

1320 rundll32.exe
3068 rundll32.exe

flow	pid	process
47	1320	rundll32.exe
57	3068	rundll32.exe
58	3068	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	rundll32.exe

pid	process
1320	rundll32.exe
3068	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2283880F-EF87-4aac-8EBD-C9BCC8494AF5_46 = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Roaming\\2283880F-EF87-4aac-8EBD-C9BCC8494AF5_46.avi\", start"	rundll32.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

1ddf00dcc6828378acab1a31fb31a2ea.exerundll32.exerundll32.exe

description	pid	process
Token: SeDebugPrivilege	4976	1ddf00dcc6828378acab1a31fb31a2ea.exe
Token: SeDebugPrivilege	1320	rundll32.exe
Token: SeDebugPrivilege	3068	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

1ddf00dcc6828378acab1a31fb31a2ea.exerundll32.exe

description	pid	process	target process
PID 4976 wrote to memory of 1320	4976	1ddf00dcc6828378acab1a31fb31a2ea.exe	rundll32.exe
PID 4976 wrote to memory of 1320	4976	1ddf00dcc6828378acab1a31fb31a2ea.exe	rundll32.exe
PID 4976 wrote to memory of 1320	4976	1ddf00dcc6828378acab1a31fb31a2ea.exe	rundll32.exe
PID 1320 wrote to memory of 3068	1320	rundll32.exe	rundll32.exe
PID 1320 wrote to memory of 3068	1320	rundll32.exe	rundll32.exe
PID 1320 wrote to memory of 3068	1320	rundll32.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\1ddf00dcc6828378acab1a31fb31a2ea.exe
"C:\Users\Admin\AppData\Local\Temp\1ddf00dcc6828378acab1a31fb31a2ea.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4976

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\\2ed8b33c-61de-4627-a418-1bf7cec90e6b\wrk58DE.tmp_46", start first worker
2⤵
- Blocklisted process makes network request
- Drops file in Drivers directory
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\\2ed8b33c-61de-4627-a418-1bf7cec90e6b\wrk7407.tmp_46", start task worker
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:3068

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\2ed8b33c-61de-4627-a418-1bf7cec90e6b\wrk58DE.tmp_46
Filesize
69KB

MD5
b510d19d05f6d2bdd6a15a94f7ecec61

SHA1
a7f2e2aa328b5f4540b2953c600810742e9bbe6d

SHA256
5d1d31c624b1caafb5b8ea28c10aca182ea46802add8cf1a8eb29173c9e9ee9d

SHA512
160df35c60166a617885fb6a2c103f8b4ad77ff24f6ef63a789e35dc0b9f48cd014fa7b49bcb9133005e2c0e6bf3ce2aeda7e31a4ef7a0e5d1e3d27f4b591ab2

Download Submit
memory/1320-8-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1320-15-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1320-26-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/3068-23-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/3068-27-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/4976-0-0x0000000000700000-0x0000000000701000-memory.dmp

Filesize
4KB

Download
memory/4976-1-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download