48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2022, 05:54

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General

Target

48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe
Size

628KB
MD5

08922375cc15814566a10af3e3ee0500
SHA1

54c653d3ee88bbb0873db3a4c26490bdf9128706
SHA256

48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c
SHA512

1f2eb6d7d09489cc5f5cc469841806238406f37dc87b1be70820478d566224374592682f208a6667e306b7a3ca03a7f769f95f9fe44ab36087c76fb84d3f554c
SSDEEP

12288:ON+LbOurqW8AuLexBtRDgNCrrxHeGCcD:NOurqW8AuL8fD4CrrsGCcD

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3584	explorer.exe
3708	explorer.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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)	\??\J:	explorer.exe
File opened (read-only)	\??\R:	explorer.exe
File opened (read-only)	\??\V:	explorer.exe
File opened (read-only)	\??\H:	explorer.exe
File opened (read-only)	\??\M:	explorer.exe
File opened (read-only)	\??\O:	explorer.exe
File opened (read-only)	\??\Q:	explorer.exe
File opened (read-only)	\??\S:	explorer.exe
File opened (read-only)	\??\U:	explorer.exe
File opened (read-only)	\??\W:	explorer.exe
File opened (read-only)	\??\X:	explorer.exe
File opened (read-only)	\??\K:	explorer.exe
File opened (read-only)	\??\N:	explorer.exe
File opened (read-only)	\??\P:	explorer.exe
File opened (read-only)	\??\T:	explorer.exe
File opened (read-only)	\??\Y:	explorer.exe
File opened (read-only)	\??\F:	explorer.exe
File opened (read-only)	\??\G:	explorer.exe
File opened (read-only)	\??\L:	explorer.exe
File opened (read-only)	\??\Z:	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 984 set thread context of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 3584 set thread context of 3708	3584	explorer.exe	83

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe
3584	explorer.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 984 wrote to memory of 4024	984	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	81
PID 4024 wrote to memory of 3584	4024	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	82
PID 4024 wrote to memory of 3584	4024	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	82
PID 4024 wrote to memory of 3584	4024	48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe	82
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83
PID 3584 wrote to memory of 3708	3584	explorer.exe	83

C:\Users\Admin\AppData\Local\Temp\48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe
"C:\Users\Admin\AppData\Local\Temp\48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:984
- C:\Users\Admin\AppData\Local\Temp\48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe
  "C:\Users\Admin\AppData\Local\Temp\48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c.exe"
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4024
- - 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:3584
  - - 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:3708

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

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Downloads

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

Filesize
628KB

MD5
08922375cc15814566a10af3e3ee0500

SHA1
54c653d3ee88bbb0873db3a4c26490bdf9128706

SHA256
48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c

SHA512
1f2eb6d7d09489cc5f5cc469841806238406f37dc87b1be70820478d566224374592682f208a6667e306b7a3ca03a7f769f95f9fe44ab36087c76fb84d3f554c

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

Filesize
628KB

MD5
08922375cc15814566a10af3e3ee0500

SHA1
54c653d3ee88bbb0873db3a4c26490bdf9128706

SHA256
48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c

SHA512
1f2eb6d7d09489cc5f5cc469841806238406f37dc87b1be70820478d566224374592682f208a6667e306b7a3ca03a7f769f95f9fe44ab36087c76fb84d3f554c

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

Filesize
628KB

MD5
08922375cc15814566a10af3e3ee0500

SHA1
54c653d3ee88bbb0873db3a4c26490bdf9128706

SHA256
48fd638afdd90873af1e76b1bb8795f633dc684862c453a74a55056734f43e0c

SHA512
1f2eb6d7d09489cc5f5cc469841806238406f37dc87b1be70820478d566224374592682f208a6667e306b7a3ca03a7f769f95f9fe44ab36087c76fb84d3f554c

Download Submit
memory/984-140-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/3584-147-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/3584-154-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/3708-156-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/3708-155-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/4024-138-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/4024-139-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/4024-143-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/4024-142-0x0000000011490000-0x00000000114BA000-memory.dmp

Filesize
168KB

Download
memory/4024-141-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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