cdab1bbe69df6b327ed1d5662e90a35f51c3830dbd21f9e3f70da1a4d2d05b93

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 12:28

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General

Target

cb68a628b41c887f1d5cdac00d2d43a9.exe
Size

9KB
MD5

cb68a628b41c887f1d5cdac00d2d43a9
SHA1

e9cc8d9432f757597bb42c3a7cb7653db10c17c3
SHA256

cdab1bbe69df6b327ed1d5662e90a35f51c3830dbd21f9e3f70da1a4d2d05b93
SHA512

8abd0536b3b389cad3f501a6145bfff1edf680165cc55b2fd818f6ef4928b66c24ef30763b2c4761cacb8acf741cf32e1005dd70840bf220ba0e6dd8ae4fc4c9
SSDEEP

192:5uyEnhtr+2pr/ZZtdxKfV32wrUX5tjwGPz95dmGirHuqYJa3:5u/dbZZUf1oLzp5JirTei

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\midimapjr = "{4F4F0064-71E0-4f0d-0012-708476C7815F}"	cb68a628b41c887f1d5cdac00d2d43a9.exe

Deletes itself 1 IoCs

pid	Process
2576	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2276	cb68a628b41c887f1d5cdac00d2d43a9.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\midimapjr.tmp	cb68a628b41c887f1d5cdac00d2d43a9.exe
File opened for modification	C:\Windows\SysWOW64\midimapjr.tmp	cb68a628b41c887f1d5cdac00d2d43a9.exe
File opened for modification	C:\Windows\SysWOW64\midimapjr.dat	cb68a628b41c887f1d5cdac00d2d43a9.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4F4F0064-71E0-4f0d-0012-708476C7815F}\InProcServer32	cb68a628b41c887f1d5cdac00d2d43a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4F4F0064-71E0-4f0d-0012-708476C7815F}\InProcServer32\ = "C:\\Windows\\SysWow64\\midimapjr.dll"	cb68a628b41c887f1d5cdac00d2d43a9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4F4F0064-71E0-4f0d-0012-708476C7815F}\InProcServer32\ThreadingModel = "Apartment"	cb68a628b41c887f1d5cdac00d2d43a9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4F4F0064-71E0-4f0d-0012-708476C7815F}	cb68a628b41c887f1d5cdac00d2d43a9.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2276	cb68a628b41c887f1d5cdac00d2d43a9.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2276	cb68a628b41c887f1d5cdac00d2d43a9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2576	2276	cb68a628b41c887f1d5cdac00d2d43a9.exe	28
PID 2276 wrote to memory of 2576	2276	cb68a628b41c887f1d5cdac00d2d43a9.exe	28
PID 2276 wrote to memory of 2576	2276	cb68a628b41c887f1d5cdac00d2d43a9.exe	28
PID 2276 wrote to memory of 2576	2276	cb68a628b41c887f1d5cdac00d2d43a9.exe	28

C:\Users\Admin\AppData\Local\Temp\cb68a628b41c887f1d5cdac00d2d43a9.exe
"C:\Users\Admin\AppData\Local\Temp\cb68a628b41c887f1d5cdac00d2d43a9.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\1822.tmp.bat
  2⤵
  - Deletes itself
  PID:2576

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\1822.tmp.bat

Filesize
179B

MD5
cf23de1821586493735711cc013e6443

SHA1
01deaeb999dc2a9ddf58e8e870459de62727204e

SHA256
06eef7239dfa77c6b3d0afaf4dfec12832a82b3c2a00c5d9f0570e1545daecde

SHA512
3439633b6fcd453f3d83d700899d6aaaa9911f1ffd08a6065403bffcfe9c57012e626a306e01c96f386e9545bf5a290e739ac2aec28fb5d2fa79681974f14e29

Download Submit
C:\Windows\SysWOW64\midimapjr.tmp

Filesize
1.0MB

MD5
1869f5eeff8b571b7fd7361c3b1dcb9c

SHA1
2f8107abb2e1ea2bfa0c30e45a2d4748f67d12cd

SHA256
291b5280fcf384878331b4e1c8e2df23127afe7968ab901c918e13d66c040fa2

SHA512
6a5b5ef925eaeae2e8943d89e410ccf234aeb7ab2f95e99d9f05ba809460a7cc6bcf4b67a7e61cfd1a605789033d4f7a9d9aee63259aba2c19f4eb8103ce7dd5

Download Submit