d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877

General

Target

d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877.exe
Size

185KB
MD5

67d3fdc0bc1c03e3fac77e0fbc956787
SHA1

20be437848c6f6e7bd0146ae1f6378f96f3967e3
SHA256

d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877
SHA512

780646dda4008db86f376d0bd8552d1d341c9e7a85ab65bd8bd873d9ca01282398f2348b8e2f797a4afb28b9621b08bb76a89b130932c265db001b1f7817bab0
SSDEEP

3072:ar1Pj9/WE/jqCPI5poSzEV5GNrXlO8N4/DgfCFZ0uWeDVL:+fpAmSayrgt0qFZ0y

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
228	service.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4488	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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b57cb8e241634542876c995d99b59a18.exe	service.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b57cb8e241634542876c995d99b59a18.exe	service.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b57cb8e241634542876c995d99b59a18 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\service.exe\" .."	service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b57cb8e241634542876c995d99b59a18 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\service.exe\" .."	service.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 27 IoCs

pid	Process
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe
228	service.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	228	service.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3260 wrote to memory of 228	3260	d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877.exe	86
PID 3260 wrote to memory of 228	3260	d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877.exe	86
PID 3260 wrote to memory of 228	3260	d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877.exe	86
PID 228 wrote to memory of 4488	228	service.exe	87
PID 228 wrote to memory of 4488	228	service.exe	87
PID 228 wrote to memory of 4488	228	service.exe	87

C:\Users\Admin\AppData\Local\Temp\d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877.exe
"C:\Users\Admin\AppData\Local\Temp\d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3260
- C:\Users\Admin\AppData\Local\Temp\service.exe
  "C:\Users\Admin\AppData\Local\Temp\service.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:228
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\service.exe" "service.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4488

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\service.exe

Filesize
185KB

MD5
67d3fdc0bc1c03e3fac77e0fbc956787

SHA1
20be437848c6f6e7bd0146ae1f6378f96f3967e3

SHA256
d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877

SHA512
780646dda4008db86f376d0bd8552d1d341c9e7a85ab65bd8bd873d9ca01282398f2348b8e2f797a4afb28b9621b08bb76a89b130932c265db001b1f7817bab0

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

Filesize
185KB

MD5
67d3fdc0bc1c03e3fac77e0fbc956787

SHA1
20be437848c6f6e7bd0146ae1f6378f96f3967e3

SHA256
d3c1dfeafa3f49b3baef3d136c43a830d84a83a23f5d6a569444bed6d14d9877

SHA512
780646dda4008db86f376d0bd8552d1d341c9e7a85ab65bd8bd873d9ca01282398f2348b8e2f797a4afb28b9621b08bb76a89b130932c265db001b1f7817bab0

Download Submit
memory/228-133-0x0000000000000000-mapping.dmp

Download
memory/228-138-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/228-139-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/3260-132-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/3260-136-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4488-137-0x0000000000000000-mapping.dmp

Download

Analysis

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