d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc

Analysis

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

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/10/2022, 21:32

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General

Target

d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc.exe
Size

26KB
MD5

a1973bc48b596fde96ae860918a8e704
SHA1

31b0b9187deab5a82ec38e297a8865edfdf5b114
SHA256

d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc
SHA512

79b57249209cc69e77cb35d1c548159f2bf57ed7b0a6618744f375f2b4710876042ab31ed8978dee8614a18a677e259d670007af91dcecaf19f8cf5a1e114ab3
SSDEEP

768:qoLKGnH5P5gyW3d8HXVEu5TWYxYL/vOa:sc5htW3dQEUWNDvOa

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4312	svchost.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
3440	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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ba4c12bee3027d94da5c81db2d196bfd.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ba4c12bee3027d94da5c81db2d196bfd.exe	svchost.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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ba4c12bee3027d94da5c81db2d196bfd = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ba4c12bee3027d94da5c81db2d196bfd = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.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 25 IoCs

pid	Process
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe
4312	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4312	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 4312	3100	d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc.exe	83
PID 3100 wrote to memory of 4312	3100	d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc.exe	83
PID 3100 wrote to memory of 4312	3100	d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc.exe	83
PID 4312 wrote to memory of 3440	4312	svchost.exe	84
PID 4312 wrote to memory of 3440	4312	svchost.exe	84
PID 4312 wrote to memory of 3440	4312	svchost.exe	84

C:\Users\Admin\AppData\Local\Temp\d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc.exe
"C:\Users\Admin\AppData\Local\Temp\d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.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:4312
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:3440

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\svchost.exe

Filesize
26KB

MD5
a1973bc48b596fde96ae860918a8e704

SHA1
31b0b9187deab5a82ec38e297a8865edfdf5b114

SHA256
d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc

SHA512
79b57249209cc69e77cb35d1c548159f2bf57ed7b0a6618744f375f2b4710876042ab31ed8978dee8614a18a677e259d670007af91dcecaf19f8cf5a1e114ab3

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

Filesize
26KB

MD5
a1973bc48b596fde96ae860918a8e704

SHA1
31b0b9187deab5a82ec38e297a8865edfdf5b114

SHA256
d9fe2f2f9e3c2e51578a37420109a2d16e694a7443119d12ef8aa52451594fdc

SHA512
79b57249209cc69e77cb35d1c548159f2bf57ed7b0a6618744f375f2b4710876042ab31ed8978dee8614a18a677e259d670007af91dcecaf19f8cf5a1e114ab3

Download Submit
memory/3100-132-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/3100-137-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/4312-138-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/4312-139-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download