99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f

General

Target

99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe
Size

41KB
MD5

15bff77d33ab57bae22deeef9d0d5500
SHA1

13e7d6cd0adb548b48fd2d5e8dfcefcf3838e08f
SHA256

99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f
SHA512

6c5f8c354eabebd04996bf61ebfa3533dff54de3f770bdd9d8bc9ec10878a8da227d57f71040a58b7f96c80f235e97da936f252fed9d2b4f62d44a372e31ea80
SSDEEP

384:rpcTPJTRb47dEbmltqyA6FVvQQVU+oE3lc4TS9O0Yz6WuTOwj:rCbJTWdEDgbvXF3lBe96GWmj

Score

10^/10

persistence

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\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-6964255\\hda7706.exe"	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\hda7706 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-6964255\\hda7706.exe"	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-6964255\Desktop.ini	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe

Modifies WinLogon 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\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-6964255\\hda7706.exe"	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 832 set thread context of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1756	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 832 wrote to memory of 1756	832	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	28
PID 1756 wrote to memory of 1188	1756	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	17
PID 1756 wrote to memory of 1188	1756	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	17
PID 1756 wrote to memory of 1188	1756	99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe	17

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1188
- C:\Users\Admin\AppData\Local\Temp\99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe
  "C:\Users\Admin\AppData\Local\Temp\99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:832
- - C:\Users\Admin\AppData\Local\Temp\99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe
    "C:\Users\Admin\AppData\Local\Temp\99c23dea97f68732cef5b08a5017d7f6ea46bfee5cf8ed62750da47edd2f780f.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Adds Run key to start application
    - Drops desktop.ini file(s)
    - Modifies WinLogon
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/832-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1756-54-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1756-55-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1756-57-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1756-58-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1756-59-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1756-63-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads