867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66

General

Target

867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Size

1.1MB
MD5

0e7fa8958e4cbc34ae16abb8ee577f7f
SHA1

55af5809411720690174be6d564d2076ddb00d5e
SHA256

867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66
SHA512

df0378ed98e88be1970eb6d1645c91d51b3a46b79a6b69874e818c41760257ef7d54a6414b00aec942528fd5fbf4c5e48cae97ceb3424d0c5471037404b71794
SSDEEP

24576:VTGpL/8D9Pzf/j3qNL8nUepusudB+KJIqxHLZ:QpL/8D9rDaNL8nUepuB+OIWZ

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2436	opera.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	opera.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AbGame = "c:\\Winis7\\opera.exe"	opera.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\P:	opera.exe
File opened (read-only)	\??\S:	opera.exe
File opened (read-only)	\??\V:	opera.exe
File opened (read-only)	\??\I:	opera.exe
File opened (read-only)	\??\N:	opera.exe
File opened (read-only)	\??\O:	opera.exe
File opened (read-only)	\??\R:	opera.exe
File opened (read-only)	\??\X:	opera.exe
File opened (read-only)	\??\Z:	opera.exe
File opened (read-only)	\??\G:	opera.exe
File opened (read-only)	\??\J:	opera.exe
File opened (read-only)	\??\K:	opera.exe
File opened (read-only)	\??\L:	opera.exe
File opened (read-only)	\??\M:	opera.exe
File opened (read-only)	\??\U:	opera.exe
File opened (read-only)	\??\Y:	opera.exe
File opened (read-only)	\??\E:	opera.exe
File opened (read-only)	\??\F:	opera.exe
File opened (read-only)	\??\T:	opera.exe
File opened (read-only)	\??\W:	opera.exe
File opened (read-only)	\??\H:	opera.exe
File opened (read-only)	\??\Q:	opera.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 16 IoCs

description	pid	Process
Token: SeSystemtimePrivilege	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Token: SeSystemtimePrivilege	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Token: SeSystemtimePrivilege	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Token: SeSystemtimePrivilege	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Token: SeSystemtimePrivilege	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Token: SeSystemtimePrivilege	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Token: SeSystemtimePrivilege	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Token: SeSystemtimePrivilege	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
Token: SeSystemtimePrivilege	2436	opera.exe
Token: SeSystemtimePrivilege	2436	opera.exe
Token: SeSystemtimePrivilege	2436	opera.exe
Token: SeSystemtimePrivilege	2436	opera.exe
Token: SeSystemtimePrivilege	2436	opera.exe
Token: SeSystemtimePrivilege	2436	opera.exe
Token: SeSystemtimePrivilege	2436	opera.exe
Token: SeSystemtimePrivilege	2436	opera.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
2436	opera.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 2436	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe	81
PID 5076 wrote to memory of 2436	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe	81
PID 5076 wrote to memory of 2436	5076	867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe	81

C:\Users\Admin\AppData\Local\Temp\867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe
"C:\Users\Admin\AppData\Local\Temp\867eca0d1ff523c7d36fa97d621d1145fabc645e8b637358433837d843ed0e66.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5076
- \??\c:\Winis7\opera.exe
  c:\Winis7\opera.exe /p
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates connected drives
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2436

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Winis7\opera.exe

Filesize
1.1MB

MD5
86cb4bdcd463061e9f9f511628b87c81

SHA1
38c0f1579db4058fde63d6d51840bae6b70fda3f

SHA256
1e5573d585aec4a7337db12f361e24394d159f4b939bebee443485b72adcc24c

SHA512
e78e2c71c03dadc55b6aa1aeadbaea15788d0cc70294194b385181dc84f39567a6108c76ccd634a4d2943cfbf91a0d36cffc9607601b38fe7c6e70fe97a9ec14

Download Submit
\??\c:\Winis7\opera.exe

Filesize
1.1MB

MD5
86cb4bdcd463061e9f9f511628b87c81

SHA1
38c0f1579db4058fde63d6d51840bae6b70fda3f

SHA256
1e5573d585aec4a7337db12f361e24394d159f4b939bebee443485b72adcc24c

SHA512
e78e2c71c03dadc55b6aa1aeadbaea15788d0cc70294194b385181dc84f39567a6108c76ccd634a4d2943cfbf91a0d36cffc9607601b38fe7c6e70fe97a9ec14

Download Submit
memory/2436-135-0x0000000000000000-mapping.dmp

Download
memory/2436-140-0x0000000000400000-0x0000000000530000-memory.dmp

Filesize
1.2MB

Download
memory/2436-142-0x0000000000400000-0x0000000000530000-memory.dmp

Filesize
1.2MB

Download
memory/5076-134-0x0000000000400000-0x0000000000530000-memory.dmp

Filesize
1.2MB

Download
memory/5076-141-0x0000000000400000-0x0000000000530000-memory.dmp

Filesize
1.2MB

Download

Analysis

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