47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9

Analysis

max time kernel
157s
max time network
156s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
03-10-2022 03:38

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General

Target

47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe
Size

629KB
MD5

450060ccd8b9d7d412c94d95633543e1
SHA1

7e1c2de473b6d376799651f14280f4f8ad3ce8fb
SHA256

47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9
SHA512

4603f28974a45fe05d9df6c1e98a9ab48f0d6a012c1c842bc2535878609f988f20273b5d5de52216d177daf27c7282822eafcfa1780168d2bf0fe27767edd41b
SSDEEP

12288:2N+LbOurqW8AuLexBtRDgNCrrxHeGCcOHO:FOurqW8AuL8fD4CrrsGCcaO

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1556	explorer.exe
1708	explorer.exe

Loads dropped DLL 2 IoCs

pid	Process
1188	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe
1188	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\explorer.exe"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	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)	\??\S:	explorer.exe
File opened (read-only)	\??\T:	explorer.exe
File opened (read-only)	\??\V:	explorer.exe
File opened (read-only)	\??\W:	explorer.exe
File opened (read-only)	\??\G:	explorer.exe
File opened (read-only)	\??\I:	explorer.exe
File opened (read-only)	\??\K:	explorer.exe
File opened (read-only)	\??\R:	explorer.exe
File opened (read-only)	\??\Z:	explorer.exe
File opened (read-only)	\??\H:	explorer.exe
File opened (read-only)	\??\N:	explorer.exe
File opened (read-only)	\??\P:	explorer.exe
File opened (read-only)	\??\X:	explorer.exe
File opened (read-only)	\??\Y:	explorer.exe
File opened (read-only)	\??\F:	explorer.exe
File opened (read-only)	\??\L:	explorer.exe
File opened (read-only)	\??\O:	explorer.exe
File opened (read-only)	\??\U:	explorer.exe
File opened (read-only)	\??\E:	explorer.exe
File opened (read-only)	\??\J:	explorer.exe
File opened (read-only)	\??\M:	explorer.exe
File opened (read-only)	\??\Q:	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1652 set thread context of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1556 set thread context of 1708	1556	explorer.exe	29

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
1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe
1556	explorer.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1652 wrote to memory of 1188	1652	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	27
PID 1188 wrote to memory of 1556	1188	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	28
PID 1188 wrote to memory of 1556	1188	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	28
PID 1188 wrote to memory of 1556	1188	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	28
PID 1188 wrote to memory of 1556	1188	47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe	28
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29
PID 1556 wrote to memory of 1708	1556	explorer.exe	29

C:\Users\Admin\AppData\Local\Temp\47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe
"C:\Users\Admin\AppData\Local\Temp\47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Users\Admin\AppData\Local\Temp\47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe
  "C:\Users\Admin\AppData\Local\Temp\47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1188
- - 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:1556
  - - 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:1708

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
629KB

MD5
450060ccd8b9d7d412c94d95633543e1

SHA1
7e1c2de473b6d376799651f14280f4f8ad3ce8fb

SHA256
47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9

SHA512
4603f28974a45fe05d9df6c1e98a9ab48f0d6a012c1c842bc2535878609f988f20273b5d5de52216d177daf27c7282822eafcfa1780168d2bf0fe27767edd41b

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

Filesize
629KB

MD5
450060ccd8b9d7d412c94d95633543e1

SHA1
7e1c2de473b6d376799651f14280f4f8ad3ce8fb

SHA256
47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9

SHA512
4603f28974a45fe05d9df6c1e98a9ab48f0d6a012c1c842bc2535878609f988f20273b5d5de52216d177daf27c7282822eafcfa1780168d2bf0fe27767edd41b

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

Filesize
629KB

MD5
450060ccd8b9d7d412c94d95633543e1

SHA1
7e1c2de473b6d376799651f14280f4f8ad3ce8fb

SHA256
47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9

SHA512
4603f28974a45fe05d9df6c1e98a9ab48f0d6a012c1c842bc2535878609f988f20273b5d5de52216d177daf27c7282822eafcfa1780168d2bf0fe27767edd41b

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

Filesize
629KB

MD5
450060ccd8b9d7d412c94d95633543e1

SHA1
7e1c2de473b6d376799651f14280f4f8ad3ce8fb

SHA256
47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9

SHA512
4603f28974a45fe05d9df6c1e98a9ab48f0d6a012c1c842bc2535878609f988f20273b5d5de52216d177daf27c7282822eafcfa1780168d2bf0fe27767edd41b

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

Filesize
629KB

MD5
450060ccd8b9d7d412c94d95633543e1

SHA1
7e1c2de473b6d376799651f14280f4f8ad3ce8fb

SHA256
47857977c75e866d76bd0bfc27d9c46f73376be05c01199b48c105919d4c8ff9

SHA512
4603f28974a45fe05d9df6c1e98a9ab48f0d6a012c1c842bc2535878609f988f20273b5d5de52216d177daf27c7282822eafcfa1780168d2bf0fe27767edd41b

Download Submit
memory/1188-67-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-63-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-56-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-57-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-59-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-71-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download
memory/1188-72-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-80-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-73-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/1188-75-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-65-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-62-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1188-60-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1556-101-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download
memory/1652-74-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download
memory/1652-70-0x00000000024D0000-0x000000000256E000-memory.dmp

Filesize
632KB

Download
memory/1652-69-0x0000000000400000-0x000000000049E000-memory.dmp

Filesize
632KB

Download
memory/1708-100-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1708-102-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/1708-103-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download