a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078

General

Target

a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe
Size

160KB
MD5

343c972d82f6f3c079537076a718e011
SHA1

73b390103b0415a736d75b845a380e4fa61a5641
SHA256

a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078
SHA512

98cb77c91d0d26ccd7019b1bbf100b0dfbadd80a04e4d9cbfe590694c5e5ff52d066c96a4f7f812a8f765130d719a5389c026ff576294769c76ab216a46bf71a
SSDEEP

3072:SBJbKBTfBzYBwIONPK6SopXDCD7VWutYsNV1suAAwFN5AiPhI:2MeeP5SZElsfOrtFr

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3404	Trojan.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4552	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	a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8515eb34d8f9de5af815466e9715b3e5.exe	Trojan.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8515eb34d8f9de5af815466e9715b3e5.exe	Trojan.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\8515eb34d8f9de5af815466e9715b3e5 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Trojan.exe\" .."	Trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8515eb34d8f9de5af815466e9715b3e5 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Trojan.exe\" .."	Trojan.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 3 IoCs

pid	Process
3404	Trojan.exe
3404	Trojan.exe
3404	Trojan.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3536	a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe
Token: 33	3536	a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe
Token: SeIncBasePriorityPrivilege	3536	a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe
Token: SeDebugPrivilege	3404	Trojan.exe
Token: 33	3404	Trojan.exe
Token: SeIncBasePriorityPrivilege	3404	Trojan.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3536 wrote to memory of 3404	3536	a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe	83
PID 3536 wrote to memory of 3404	3536	a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe	83
PID 3536 wrote to memory of 3404	3536	a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe	83
PID 3404 wrote to memory of 4552	3404	Trojan.exe	84
PID 3404 wrote to memory of 4552	3404	Trojan.exe	84
PID 3404 wrote to memory of 4552	3404	Trojan.exe	84

C:\Users\Admin\AppData\Local\Temp\a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe
"C:\Users\Admin\AppData\Local\Temp\a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3536
- C:\Users\Admin\AppData\Roaming\Trojan.exe
  "C:\Users\Admin\AppData\Roaming\Trojan.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:3404
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Trojan.exe" "Trojan.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4552

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

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Downloads

C:\Users\Admin\AppData\Roaming\Trojan.exe

Filesize
160KB

MD5
343c972d82f6f3c079537076a718e011

SHA1
73b390103b0415a736d75b845a380e4fa61a5641

SHA256
a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078

SHA512
98cb77c91d0d26ccd7019b1bbf100b0dfbadd80a04e4d9cbfe590694c5e5ff52d066c96a4f7f812a8f765130d719a5389c026ff576294769c76ab216a46bf71a

Download Submit
C:\Users\Admin\AppData\Roaming\Trojan.exe

Filesize
160KB

MD5
343c972d82f6f3c079537076a718e011

SHA1
73b390103b0415a736d75b845a380e4fa61a5641

SHA256
a71d81b57ede011abb8f45d74b5b10aa5c5c760d3b013a61f78fef056888d078

SHA512
98cb77c91d0d26ccd7019b1bbf100b0dfbadd80a04e4d9cbfe590694c5e5ff52d066c96a4f7f812a8f765130d719a5389c026ff576294769c76ab216a46bf71a

Download Submit
memory/3404-139-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/3404-140-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/3536-132-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/3536-133-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/3536-137-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download

Analysis

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