91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a

Analysis

max time kernel
326s
max time network
383s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2022 00:49

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General

Target

91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a.exe
Size

93KB
MD5

c83d2d468f682d130bdc0bdb22b914c2
SHA1

70d094e459f3b59412fc11be2e6142d666138817
SHA256

91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a
SHA512

b5e019195589f505437bc2fa7b35f9d94df6f1c3e4d15731e893d0a84299785f2aac000a3a4959665644b819ea4c6737f72daffd522cb427747a0b08a9f35aa2
SSDEEP

1536:Hh9jFJr6+Uu8WPg1pM2uH2DYdqz9EINY3t:/xZ6+H8W0pM2uH2DYQzVat

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3844	windows.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4788	netsh.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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecc7c8c51c0850c1ec247c7fd3602f20.exe	windows.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecc7c8c51c0850c1ec247c7fd3602f20.exe	windows.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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ecc7c8c51c0850c1ec247c7fd3602f20 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .."	windows.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ecc7c8c51c0850c1ec247c7fd3602f20 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .."	windows.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe
3844	windows.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3844	windows.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 3844	4808	91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a.exe	81
PID 4808 wrote to memory of 3844	4808	91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a.exe	81
PID 4808 wrote to memory of 3844	4808	91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a.exe	81
PID 3844 wrote to memory of 4788	3844	windows.exe	82
PID 3844 wrote to memory of 4788	3844	windows.exe	82
PID 3844 wrote to memory of 4788	3844	windows.exe	82

C:\Users\Admin\AppData\Local\Temp\91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a.exe
"C:\Users\Admin\AppData\Local\Temp\91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Users\Admin\AppData\Local\Temp\windows.exe
  "C:\Users\Admin\AppData\Local\Temp\windows.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3844
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows.exe" "windows.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4788

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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\Local\Temp\windows.exe

Filesize
93KB

MD5
c83d2d468f682d130bdc0bdb22b914c2

SHA1
70d094e459f3b59412fc11be2e6142d666138817

SHA256
91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a

SHA512
b5e019195589f505437bc2fa7b35f9d94df6f1c3e4d15731e893d0a84299785f2aac000a3a4959665644b819ea4c6737f72daffd522cb427747a0b08a9f35aa2

Download Submit
C:\Users\Admin\AppData\Local\Temp\windows.exe

Filesize
93KB

MD5
c83d2d468f682d130bdc0bdb22b914c2

SHA1
70d094e459f3b59412fc11be2e6142d666138817

SHA256
91417d383e8b10afe9cd444b204ae826d8cd7848c97c1c2a14025c273a251c9a

SHA512
b5e019195589f505437bc2fa7b35f9d94df6f1c3e4d15731e893d0a84299785f2aac000a3a4959665644b819ea4c6737f72daffd522cb427747a0b08a9f35aa2

Download Submit
memory/3844-137-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/3844-138-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4808-132-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4808-136-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download