28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51

General

Target

28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51.exe
Size

278KB
MD5

91f0885857ebb94c1b36060318d102b0
SHA1

b2da4f2a90843790b7071b73dde366d4814b37d6
SHA256

28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51
SHA512

ded140663d46a04dea6adb969306ab58b5a9c4818160d3db638fed9e3f11a1e45f71b4bddc82e76020fcf25296221b47c0afc39dc40561c5f24f41cfb7eff251
SSDEEP

6144:nTSeRSXbcqdvL7N9uDnqTdnLAJebd7RCeebfzqEN:ZaAqdvNwDnm4bfzqEN

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2016	igfxdntray.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
952	netsh.exe

Loads dropped DLL 1 IoCs

pid	Process
1668	28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51.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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\213c00f27b407df82847866068cf1d20 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\igfxdntray.exe\" .."	igfxdntray.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\213c00f27b407df82847866068cf1d20 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\igfxdntray.exe\" .."	igfxdntray.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeDebugPrivilege	2016	igfxdntray.exe
Token: 33	2016	igfxdntray.exe
Token: SeIncBasePriorityPrivilege	2016	igfxdntray.exe
Token: 33	2016	igfxdntray.exe
Token: SeIncBasePriorityPrivilege	2016	igfxdntray.exe
Token: 33	2016	igfxdntray.exe
Token: SeIncBasePriorityPrivilege	2016	igfxdntray.exe
Token: 33	2016	igfxdntray.exe
Token: SeIncBasePriorityPrivilege	2016	igfxdntray.exe
Token: 33	2016	igfxdntray.exe
Token: SeIncBasePriorityPrivilege	2016	igfxdntray.exe
Token: 33	2016	igfxdntray.exe
Token: SeIncBasePriorityPrivilege	2016	igfxdntray.exe
Token: 33	2016	igfxdntray.exe
Token: SeIncBasePriorityPrivilege	2016	igfxdntray.exe
Token: 33	2016	igfxdntray.exe
Token: SeIncBasePriorityPrivilege	2016	igfxdntray.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2016	1668	28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51.exe	28
PID 1668 wrote to memory of 2016	1668	28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51.exe	28
PID 1668 wrote to memory of 2016	1668	28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51.exe	28
PID 1668 wrote to memory of 2016	1668	28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51.exe	28
PID 2016 wrote to memory of 952	2016	igfxdntray.exe	29
PID 2016 wrote to memory of 952	2016	igfxdntray.exe	29
PID 2016 wrote to memory of 952	2016	igfxdntray.exe	29
PID 2016 wrote to memory of 952	2016	igfxdntray.exe	29

C:\Users\Admin\AppData\Local\Temp\28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51.exe
"C:\Users\Admin\AppData\Local\Temp\28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Local\Temp\igfxdntray.exe
  "C:\Users\Admin\AppData\Local\Temp\igfxdntray.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2016
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\igfxdntray.exe" "igfxdntray.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:952

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
278KB

MD5
91f0885857ebb94c1b36060318d102b0

SHA1
b2da4f2a90843790b7071b73dde366d4814b37d6

SHA256
28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51

SHA512
ded140663d46a04dea6adb969306ab58b5a9c4818160d3db638fed9e3f11a1e45f71b4bddc82e76020fcf25296221b47c0afc39dc40561c5f24f41cfb7eff251

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

Filesize
278KB

MD5
91f0885857ebb94c1b36060318d102b0

SHA1
b2da4f2a90843790b7071b73dde366d4814b37d6

SHA256
28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51

SHA512
ded140663d46a04dea6adb969306ab58b5a9c4818160d3db638fed9e3f11a1e45f71b4bddc82e76020fcf25296221b47c0afc39dc40561c5f24f41cfb7eff251

Download Submit
\Users\Admin\AppData\Local\Temp\igfxdntray.exe

Filesize
278KB

MD5
91f0885857ebb94c1b36060318d102b0

SHA1
b2da4f2a90843790b7071b73dde366d4814b37d6

SHA256
28d3f731dfabefe0623cdc5dd85c2159bddf2630a763ecec01708f99ca288f51

SHA512
ded140663d46a04dea6adb969306ab58b5a9c4818160d3db638fed9e3f11a1e45f71b4bddc82e76020fcf25296221b47c0afc39dc40561c5f24f41cfb7eff251

Download Submit
memory/1668-54-0x0000000075241000-0x0000000075243000-memory.dmp

Filesize
8KB

Download
memory/1668-55-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download
memory/1668-56-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download
memory/1668-62-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download
memory/2016-63-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download
memory/2016-66-0x0000000074740000-0x0000000074CEB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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