d880f67d0ea30bc1e96a21220be6626213ec4aeb65c4f6659056d555db37143c

General

Target

0cd93dec5db32a18f796b7d7e127b051.exe
Size

71KB
MD5

0cd93dec5db32a18f796b7d7e127b051
SHA1

3d4b90d02f0435498edf5b1c8c0d37b4534850ed
SHA256

d880f67d0ea30bc1e96a21220be6626213ec4aeb65c4f6659056d555db37143c
SHA512

521b94fca00b7f68bd18df9a762d1f8e74e3f0ec8a0730367ddc26e603be292333393ccd78c4aeecec70ef752d574b8daa6fca9cee69e8b72d39bb05c94a647a
SSDEEP

1536:YwceqPmRNa4B1sD8na7+ntsJF5hcIP9qh0wFwzTb:YteqPedB1M8na+tsv5Zlg6Tb

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

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\\system.exe"	system.exe

Modifies firewall policy service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	system.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\system.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe:*:Enabled:system.exe"	system.exe

Executes dropped EXE 1 IoCs

pid	Process
2800	system.exe

Loads dropped DLL 2 IoCs

pid	Process
2536	cmd.exe
2536	cmd.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral1/memory/952-1-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/952-2-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/952-5-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/952-6-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/files/0x000a000000013a71-13.dat	upx
behavioral1/memory/2800-16-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2800-21-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2800-20-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/952-10-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2800-22-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2800-28-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2800-29-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2800-30-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2800-33-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 952 wrote to memory of 2988	952	0cd93dec5db32a18f796b7d7e127b051.exe	31
PID 952 wrote to memory of 2988	952	0cd93dec5db32a18f796b7d7e127b051.exe	31
PID 952 wrote to memory of 2988	952	0cd93dec5db32a18f796b7d7e127b051.exe	31
PID 952 wrote to memory of 2988	952	0cd93dec5db32a18f796b7d7e127b051.exe	31
PID 952 wrote to memory of 2936	952	0cd93dec5db32a18f796b7d7e127b051.exe	30
PID 952 wrote to memory of 2936	952	0cd93dec5db32a18f796b7d7e127b051.exe	30
PID 952 wrote to memory of 2936	952	0cd93dec5db32a18f796b7d7e127b051.exe	30
PID 952 wrote to memory of 2936	952	0cd93dec5db32a18f796b7d7e127b051.exe	30
PID 952 wrote to memory of 2536	952	0cd93dec5db32a18f796b7d7e127b051.exe	34
PID 952 wrote to memory of 2536	952	0cd93dec5db32a18f796b7d7e127b051.exe	34
PID 952 wrote to memory of 2536	952	0cd93dec5db32a18f796b7d7e127b051.exe	34
PID 952 wrote to memory of 2536	952	0cd93dec5db32a18f796b7d7e127b051.exe	34
PID 2536 wrote to memory of 2800	2536	cmd.exe	33
PID 2536 wrote to memory of 2800	2536	cmd.exe	33
PID 2536 wrote to memory of 2800	2536	cmd.exe	33
PID 2536 wrote to memory of 2800	2536	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\0cd93dec5db32a18f796b7d7e127b051.exe
"C:\Users\Admin\AppData\Local\Temp\0cd93dec5db32a18f796b7d7e127b051.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:952
- C:\Windows\SysWOW64\cmd.exe
  cmd /c copy "C:\Users\Admin\AppData\Local\Temp\0cd93dec5db32a18f796b7d7e127b051.exe" "C:\Users\Admin\AppData\Local\Temp\system.exe"
  2⤵
  PID:2936
- C:\Windows\SysWOW64\cmd.exe
  cmd /c if exist "C:\Users\Admin\AppData\Local\Temp\system.exe" ren "C:\Users\Admin\AppData\Local\Temp\system.exe" "0870.bak"
  2⤵
  PID:2988
- C:\Windows\SysWOW64\cmd.exe
  cmd /c "C:\Users\Admin\AppData\Local\Temp\system.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2536

C:\Users\Admin\AppData\Local\Temp\system.exe
C:\Users\Admin\AppData\Local\Temp\system.exe
1⤵
- Modifies WinLogon for persistence
- Modifies firewall policy service
- Executes dropped EXE
PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
71KB

MD5
0cd93dec5db32a18f796b7d7e127b051

SHA1
3d4b90d02f0435498edf5b1c8c0d37b4534850ed

SHA256
d880f67d0ea30bc1e96a21220be6626213ec4aeb65c4f6659056d555db37143c

SHA512
521b94fca00b7f68bd18df9a762d1f8e74e3f0ec8a0730367ddc26e603be292333393ccd78c4aeecec70ef752d574b8daa6fca9cee69e8b72d39bb05c94a647a

Download Submit
memory/952-1-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/952-3-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/952-2-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/952-5-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/952-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/952-10-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2536-14-0x0000000000160000-0x00000000001B1000-memory.dmp

Filesize
324KB

Download
memory/2536-23-0x0000000000160000-0x00000000001B1000-memory.dmp

Filesize
324KB

Download
memory/2800-20-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-21-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-19-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/2800-22-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-16-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-24-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/2800-28-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-29-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-30-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-33-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-35-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-36-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2800-37-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads