6609cf9b0aefabaaf1bccc04237e6ff32315960166bf4aa2ff5372cfb51c80d3

Analysis

max time kernel
130s
max time network
132s
platform
windows10_x64
resource
win10v20201028
submitted
04/11/2020, 14:18

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General

Target
Purchase Order.PDF.exe
Size 577KB
Sample201104-ttcqzhpyme
SHA256 6609cf9b0aefabaaf1bccc04237e6ff32315960166bf4aa2ff5372cfb51c80d3
MD5 d64c7158220f66ed0276ca91ccdace5e
SHA1 ba05458154518290938f293d2aca03b4d1787a91
SHA512 adda28c9cd6ea09de8ef7f7dd160f1170c2a3b60758f20e7297f50fda82ccf08fbc59511789a3a4467bc05dab3953ca167ad05fa50a3751148c6068bcac7de88
MD5 SHA1 SHA512

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mymp4 = "C:\\Users\\Admin\\AppData\\Roaming\\Mymp4\\Mymp4.exe"	Purchase Order.PDF.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 728 set thread context of 1536	728	Purchase Order.PDF.exe	81

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2588	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
728	Purchase Order.PDF.exe
728	Purchase Order.PDF.exe
728	Purchase Order.PDF.exe
1536	Purchase Order.PDF.exe
1536	Purchase Order.PDF.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	728	Purchase Order.PDF.exe
Token: SeDebugPrivilege	1536	Purchase Order.PDF.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 728 wrote to memory of 2588	728	Purchase Order.PDF.exe	78
PID 728 wrote to memory of 2588	728	Purchase Order.PDF.exe	78
PID 728 wrote to memory of 2588	728	Purchase Order.PDF.exe	78
PID 728 wrote to memory of 1340	728	Purchase Order.PDF.exe	80
PID 728 wrote to memory of 1340	728	Purchase Order.PDF.exe	80
PID 728 wrote to memory of 1340	728	Purchase Order.PDF.exe	80
PID 728 wrote to memory of 1536	728	Purchase Order.PDF.exe	81
PID 728 wrote to memory of 1536	728	Purchase Order.PDF.exe	81
PID 728 wrote to memory of 1536	728	Purchase Order.PDF.exe	81
PID 728 wrote to memory of 1536	728	Purchase Order.PDF.exe	81
PID 728 wrote to memory of 1536	728	Purchase Order.PDF.exe	81
PID 728 wrote to memory of 1536	728	Purchase Order.PDF.exe	81
PID 728 wrote to memory of 1536	728	Purchase Order.PDF.exe	81
PID 728 wrote to memory of 1536	728	Purchase Order.PDF.exe	81

C:\Users\Admin\AppData\Local\Temp\Purchase Order.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:728
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aDQgaDzHEdkJa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7669.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2588
- C:\Users\Admin\AppData\Local\Temp\Purchase Order.PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order.PDF.exe"
  2⤵
  PID:1340
- C:\Users\Admin\AppData\Local\Temp\Purchase Order.PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order.PDF.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1536

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/728-9-0x0000000005EA0000-0x0000000005F0D000-memory.dmp

Download

memory/728-10-0x0000000005F10000-0x0000000005F48000-memory.dmp

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memory/728-5-0x0000000005170000-0x0000000005171000-memory.dmp

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memory/728-6-0x0000000005020000-0x0000000005021000-memory.dmp

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memory/728-7-0x0000000005390000-0x0000000005391000-memory.dmp

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memory/728-8-0x0000000005040000-0x000000000504B000-memory.dmp

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memory/728-0-0x0000000073EE0000-0x00000000745CE000-memory.dmp

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memory/728-4-0x0000000005670000-0x0000000005671000-memory.dmp

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memory/728-1-0x0000000000770000-0x0000000000771000-memory.dmp

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memory/728-3-0x0000000005070000-0x0000000005071000-memory.dmp

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memory/1536-13-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1536-16-0x0000000073EE0000-0x00000000745CE000-memory.dmp

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memory/1536-21-0x0000000005120000-0x0000000005121000-memory.dmp

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memory/1536-22-0x0000000005C40000-0x0000000005C41000-memory.dmp

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