d3d1b46c3bcb836f01f3a3d77d23ffa2618cffb64f953978a50f3d281ad5dd66

Analysis

max time kernel
143s
max time network
124s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-11-2022 04:55

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General

Target

Trojan-Ransom.Win32.Blocker.exe
Size

94KB
MD5

dc6dc4733186aac2aa3ff6c8a4bbe1f0
SHA1

526e635779c781f02ee80e23b58c517e400cab91
SHA256

d3d1b46c3bcb836f01f3a3d77d23ffa2618cffb64f953978a50f3d281ad5dd66
SHA512

dedb7463d8f44a2429e4be8fff8cb4fbb19bfc1796ed62bb77f8198522f771fb8a500fae50af591736590dec2854f755ef63b25d193387c575317fa8613c298a
SSDEEP

1536:Q54R7NkWER9I6BhCUGBf16nMmisfA9yL95o+Uic3qlEzCOMGsPXIUxA0cK:aIqWJUbsHmimcyrOic3rzCOMGoI4A0D

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
948	Mrmicro.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\googlehost.exe = "\"C:\\windows\\Mrmicro.exe\""	Mrmicro.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\Mrmicro.exe	Trojan-Ransom.Win32.Blocker.exe
File created	\??\c:\windows\Mrmicro.exe	Trojan-Ransom.Win32.Blocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 864 wrote to memory of 948	864	Trojan-Ransom.Win32.Blocker.exe	27
PID 864 wrote to memory of 948	864	Trojan-Ransom.Win32.Blocker.exe	27
PID 864 wrote to memory of 948	864	Trojan-Ransom.Win32.Blocker.exe	27
PID 864 wrote to memory of 948	864	Trojan-Ransom.Win32.Blocker.exe	27

C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:864
- C:\windows\Mrmicro.exe
  "C:\windows\Mrmicro.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:948

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Mrmicro.exe

Filesize
94KB

MD5
dc6dc4733186aac2aa3ff6c8a4bbe1f0

SHA1
526e635779c781f02ee80e23b58c517e400cab91

SHA256
d3d1b46c3bcb836f01f3a3d77d23ffa2618cffb64f953978a50f3d281ad5dd66

SHA512
dedb7463d8f44a2429e4be8fff8cb4fbb19bfc1796ed62bb77f8198522f771fb8a500fae50af591736590dec2854f755ef63b25d193387c575317fa8613c298a

Download Submit
memory/864-54-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/864-57-0x00000000004F0000-0x0000000000506000-memory.dmp

Filesize
88KB

Download
memory/948-55-0x0000000000000000-mapping.dmp

Download
memory/948-59-0x0000000002030000-0x0000000002046000-memory.dmp

Filesize
88KB

Download