573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f

Analysis

max time kernel
156s
max time network
196s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 13:54

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General

Target

573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe
Size

272KB
MD5

72b50893859c54ab44784c588a1bd8aa
SHA1

4b08267dfb6decaac1188362fcd43af9b4eee6c7
SHA256

573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f
SHA512

5af3ad3737e705cc28c6d52fe3fa7829ddbba0e06a1ff1b1e8bce23fb41d0705fc97ae7354d412619e56dee8340b9f7c23a088362398d7479e155ea1157b8787
SSDEEP

3072:Mx20vlI9JI5sBfsPwj1/9+VXKgOj8sSmrm3NaBiS5KltLspxrCO+rpTdZxuGQup:OG849+VXKgOjLMNaBiSkltLy5p+r5Au

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1632	explorer.exe
576	explorer.exe

Loads dropped DLL 2 IoCs

pid	Process
1908	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe
1908	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\explorer.exe"	explorer.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\E:	explorer.exe
File opened (read-only)	\??\I:	explorer.exe
File opened (read-only)	\??\T:	explorer.exe
File opened (read-only)	\??\U:	explorer.exe
File opened (read-only)	\??\W:	explorer.exe
File opened (read-only)	\??\M:	explorer.exe
File opened (read-only)	\??\N:	explorer.exe
File opened (read-only)	\??\O:	explorer.exe
File opened (read-only)	\??\S:	explorer.exe
File opened (read-only)	\??\V:	explorer.exe
File opened (read-only)	\??\Y:	explorer.exe
File opened (read-only)	\??\X:	explorer.exe
File opened (read-only)	\??\Z:	explorer.exe
File opened (read-only)	\??\F:	explorer.exe
File opened (read-only)	\??\H:	explorer.exe
File opened (read-only)	\??\K:	explorer.exe
File opened (read-only)	\??\L:	explorer.exe
File opened (read-only)	\??\Q:	explorer.exe
File opened (read-only)	\??\R:	explorer.exe
File opened (read-only)	\??\G:	explorer.exe
File opened (read-only)	\??\J:	explorer.exe
File opened (read-only)	\??\P:	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1772 set thread context of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1632 set thread context of 576	1632	explorer.exe	30

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 SetWindowsHookEx 2 IoCs

pid	Process
1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe
1632	explorer.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1772 wrote to memory of 1908	1772	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	28
PID 1908 wrote to memory of 1632	1908	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	29
PID 1908 wrote to memory of 1632	1908	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	29
PID 1908 wrote to memory of 1632	1908	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	29
PID 1908 wrote to memory of 1632	1908	573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe	29
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30
PID 1632 wrote to memory of 576	1632	explorer.exe	30

C:\Users\Admin\AppData\Local\Temp\573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe
"C:\Users\Admin\AppData\Local\Temp\573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Users\Admin\AppData\Local\Temp\573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe
  "C:\Users\Admin\AppData\Local\Temp\573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1908
- - C:\Users\Admin\AppData\Roaming\Microsoft\explorer.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\explorer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1632
  - - C:\Users\Admin\AppData\Roaming\Microsoft\explorer.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\explorer.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Enumerates connected drives
      PID:576

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\explorer.exe

Filesize
272KB

MD5
72b50893859c54ab44784c588a1bd8aa

SHA1
4b08267dfb6decaac1188362fcd43af9b4eee6c7

SHA256
573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f

SHA512
5af3ad3737e705cc28c6d52fe3fa7829ddbba0e06a1ff1b1e8bce23fb41d0705fc97ae7354d412619e56dee8340b9f7c23a088362398d7479e155ea1157b8787

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\explorer.exe

Filesize
272KB

MD5
72b50893859c54ab44784c588a1bd8aa

SHA1
4b08267dfb6decaac1188362fcd43af9b4eee6c7

SHA256
573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f

SHA512
5af3ad3737e705cc28c6d52fe3fa7829ddbba0e06a1ff1b1e8bce23fb41d0705fc97ae7354d412619e56dee8340b9f7c23a088362398d7479e155ea1157b8787

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\explorer.exe

Filesize
272KB

MD5
72b50893859c54ab44784c588a1bd8aa

SHA1
4b08267dfb6decaac1188362fcd43af9b4eee6c7

SHA256
573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f

SHA512
5af3ad3737e705cc28c6d52fe3fa7829ddbba0e06a1ff1b1e8bce23fb41d0705fc97ae7354d412619e56dee8340b9f7c23a088362398d7479e155ea1157b8787

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\explorer.exe

Filesize
272KB

MD5
72b50893859c54ab44784c588a1bd8aa

SHA1
4b08267dfb6decaac1188362fcd43af9b4eee6c7

SHA256
573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f

SHA512
5af3ad3737e705cc28c6d52fe3fa7829ddbba0e06a1ff1b1e8bce23fb41d0705fc97ae7354d412619e56dee8340b9f7c23a088362398d7479e155ea1157b8787

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\explorer.exe

Filesize
272KB

MD5
72b50893859c54ab44784c588a1bd8aa

SHA1
4b08267dfb6decaac1188362fcd43af9b4eee6c7

SHA256
573a6764daf6d5a68c60b0ed549659b4504d858f111589c92d75ffd5420ef18f

SHA512
5af3ad3737e705cc28c6d52fe3fa7829ddbba0e06a1ff1b1e8bce23fb41d0705fc97ae7354d412619e56dee8340b9f7c23a088362398d7479e155ea1157b8787

Download Submit
memory/576-101-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/576-102-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/576-103-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1632-99-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1632-84-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1772-55-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1772-71-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1908-66-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-75-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1908-74-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-73-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-72-0x0000000075981000-0x0000000075983000-memory.dmp

Filesize
8KB

Download
memory/1908-70-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-68-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-64-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-63-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-61-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-60-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-58-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1908-57-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download