d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473

General

Target

d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe
Size

134KB
MD5

5c9886c5640c5e125e6640314db6d216
SHA1

b5ecf8c1bfcc8550644b3fe78ff07a344f95ec1c
SHA256

d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473
SHA512

a16d5d68f8cdc726cdb4d77cbb0a3ec41bd8b51aedb06c206cab3eae904fd321323085cc7f65afee354fb8f9d0615e87830cb2f2a61ba3b62058560a9ce2e8df
SSDEEP

3072:ncw9JIpFWgCcw2OPdZm+UyidxE9oVjB1jz4oUSod2oewM:RJIpFWgCP/Pb2ymxQK/lSgp

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe ,C:\\Users\\Admin\\AppData\\Local\\Temp\\d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe"	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe

Disables use of System Restore points 1 TTPs
evasion

Inhibit System Recovery
T1490

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1408-135-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/memory/1408-137-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/memory/1408-139-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/memory/1408-142-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/memory/1408-146-0x0000000000400000-0x0000000000427000-memory.dmp	upx

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1528 set thread context of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1408 set thread context of 3508	1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	82

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3508	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe
3508	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe
3508	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe
3508	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe
1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1528 wrote to memory of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1528 wrote to memory of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1528 wrote to memory of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1528 wrote to memory of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1528 wrote to memory of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1528 wrote to memory of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1528 wrote to memory of 1408	1528	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	81
PID 1408 wrote to memory of 3508	1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	82
PID 1408 wrote to memory of 3508	1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	82
PID 1408 wrote to memory of 3508	1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	82
PID 1408 wrote to memory of 3508	1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	82
PID 1408 wrote to memory of 3508	1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	82
PID 1408 wrote to memory of 3508	1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	82
PID 1408 wrote to memory of 3508	1408	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	82
PID 3508 wrote to memory of 2888	3508	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	63
PID 3508 wrote to memory of 2888	3508	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	63
PID 3508 wrote to memory of 2888	3508	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	63
PID 3508 wrote to memory of 2888	3508	d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe	63

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2888
- C:\Users\Admin\AppData\Local\Temp\d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe
  "C:\Users\Admin\AppData\Local\Temp\d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1528
- - C:\Users\Admin\AppData\Local\Temp\d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe
    "C:\Users\Admin\AppData\Local\Temp\d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1408
  - - C:\Users\Admin\AppData\Local\Temp\d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe
      "C:\Users\Admin\AppData\Local\Temp\d83275ce64fbca91202817bcc2cb23031484f7f13627277d84e5761e9ff0b473.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:3508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

1

T1490

Replay Monitor

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Downloads

memory/1408-135-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1408-137-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1408-139-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1408-142-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1408-146-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1528-138-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2888-148-0x000000007FFF0000-0x000000007FFF7000-memory.dmp

Filesize
28KB

Download
memory/3508-144-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3508-147-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3508-149-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download

Analysis

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