20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6

General

Target

20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exe
Size

151KB
MD5

cf6fc1e354a33219ba6d20704cffacc4
SHA1

3d773feb44fc8097adc8dcddadb20ebda6c0942d
SHA256

20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6
SHA512

169b365b651638722401210cd406593cd2052cf22071aa238ef4e500b3adbee4c91af8be8d6c056371914774ae6a2490036ea7601d2d861ac3d80db46d61925e
SSDEEP

3072:bWbrBJVY2Cy+pHdrk0fb7GNUmfYQp/IRLsqd1pIecT3:bdHdo0T7PgYDs4pW

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

winup.exe

pid process

4632 winup.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4984 netsh.exe

pid	process
4984	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

Processes:

20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exe

Drops startup file 2 IoCs

Processes:

winup.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0908d40f6c983932f9a545580d2dbfff.exe	winup.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0908d40f6c983932f9a545580d2dbfff.exe	winup.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

winup.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0908d40f6c983932f9a545580d2dbfff = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\winup.exe\" .."	winup.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0908d40f6c983932f9a545580d2dbfff = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\winup.exe\" .."	winup.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

Processes:

winup.exe

pid	process
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe
4632	winup.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

winup.exe

description pid process

Token: SeDebugPrivilege 4632 winup.exe

description	pid	process
Token: SeDebugPrivilege	4632	winup.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exewinup.exe

description	pid	process	target process
PID 3060 wrote to memory of 4632	3060	20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exe	winup.exe
PID 3060 wrote to memory of 4632	3060	20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exe	winup.exe
PID 3060 wrote to memory of 4632	3060	20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exe	winup.exe
PID 4632 wrote to memory of 4984	4632	winup.exe	netsh.exe
PID 4632 wrote to memory of 4984	4632	winup.exe	netsh.exe
PID 4632 wrote to memory of 4984	4632	winup.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exe
"C:\Users\Admin\AppData\Local\Temp\20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3060

C:\Users\Admin\AppData\Local\Temp\winup.exe
"C:\Users\Admin\AppData\Local\Temp\winup.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:4632

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\winup.exe" "winup.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4984

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\winup.exe
Filesize
151KB

MD5
cf6fc1e354a33219ba6d20704cffacc4

SHA1
3d773feb44fc8097adc8dcddadb20ebda6c0942d

SHA256
20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6

SHA512
169b365b651638722401210cd406593cd2052cf22071aa238ef4e500b3adbee4c91af8be8d6c056371914774ae6a2490036ea7601d2d861ac3d80db46d61925e

Download Submit
C:\Users\Admin\AppData\Local\Temp\winup.exe
Filesize
151KB

MD5
cf6fc1e354a33219ba6d20704cffacc4

SHA1
3d773feb44fc8097adc8dcddadb20ebda6c0942d

SHA256
20dc5831bc55ea4f98fadcb1dac74be04eb1c01acb067c51a7fa5f9bd517bec6

SHA512
169b365b651638722401210cd406593cd2052cf22071aa238ef4e500b3adbee4c91af8be8d6c056371914774ae6a2490036ea7601d2d861ac3d80db46d61925e

Download Submit
memory/3060-132-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/3060-137-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/4632-133-0x0000000000000000-mapping.dmp

Download
memory/4632-138-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/4632-139-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/4984-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads