893b5cfbf6b679e5da40d01b3ddea87803d9ce3938ea79d353fe0d2fb7d6667f

Analysis

max time kernel
150s
max time network
46s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
02/02/2023, 13:36

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General

Target

4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe
Size

17KB
MD5

f56b884bf1216fcb519c29f964504e5e
SHA1

4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd
SHA256

893b5cfbf6b679e5da40d01b3ddea87803d9ce3938ea79d353fe0d2fb7d6667f
SHA512

25b564f85aa32128c80e5eb38342a1242183024119492e596125bca8b715b6f140f3c90c5615a74a2fe9dc66a79c593bead87f0ac4506193ce70423bcf939d5d
SSDEEP

384:Z1e4n7QAjTaCKE/ZyBdqnNr12MBvJNFO9IQxPHdXh:/P7QOdPyHIrvgaSPHdR

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
832	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RUN\ntbdgzjs = "C:\\Windows\\tdzsjdoa.exe"	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rbmzppcd.dll	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\tdzsjdoa.exe	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe
File created	C:\Windows\tdzsjdoa.exe	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
832	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe
832	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
832	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 832 wrote to memory of 1208	832	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe	13
PID 832 wrote to memory of 1208	832	4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe	13

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1208
- C:\Users\Admin\AppData\Local\Temp\4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe
  "C:\Users\Admin\AppData\Local\Temp\4c4160a12eecadee8ee5ba2d6e4b17a5d5dd58cd.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:832

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\SysWOW64\rbmzppcd.dll

Filesize
25KB

MD5
bcebcbb071dab71b07880d8de734ccb5

SHA1
7b5bfcb66e0c169e171702988b2455d48fb037af

SHA256
b1dd5928aecd8a23dcc602403f15bcc5c357931c7b393b415d094464ad3e81b7

SHA512
dd444db11479127e1820585793c95aa06dc2332c59982728a935ab8f94702b0bca8e0eab807de7b21772663de354381d73948d50e6ef677d3bb386c911fd9e21

Download Submit
memory/1208-55-0x0000000002A20000-0x0000000002A21000-memory.dmp

Filesize
4KB

Download
memory/1208-54-0x0000000002A10000-0x0000000002A11000-memory.dmp

Filesize
4KB

Download