4a4688aef8ed33c99bda67183d11393956d9e29453ebc230bce72d06f788520a

Analysis

max time kernel
97s
max time network
99s
platform
windows7_x64
resource
win7v200722
submitted
27/08/2020, 08:02

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General

Target
电汇确认宝2541_xls.exe
Size 923KB
Sample200827-snjbb2l4cs
SHA256 4a4688aef8ed33c99bda67183d11393956d9e29453ebc230bce72d06f788520a
MD5 00eb7192f5f1737a1271511d3b64946b
SHA1 5059656a3d96984f5d57e476b0179aaeb4581ef1
SHA512 23bb02ea4cf833e2e71b27c42c53e58c66e6014666cef41bdb6eaafeddfefb2fb0514cce1df344c7d99185f0c0eb28dfbd84285291fffc2bce3be3a5f3b78acc
MD5 SHA1 SHA512

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1780	1432	WerFault.exe	23

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
1852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1432	电汇确认宝2541_xls.exe
1780	WerFault.exe
1780	WerFault.exe
1780	WerFault.exe
1780	WerFault.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1432	电汇确认宝2541_xls.exe
Token: SeDebugPrivilege	1780	WerFault.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 1852	1432	电汇确认宝2541_xls.exe	26
PID 1432 wrote to memory of 1852	1432	电汇确认宝2541_xls.exe	26
PID 1432 wrote to memory of 1852	1432	电汇确认宝2541_xls.exe	26
PID 1432 wrote to memory of 1852	1432	电汇确认宝2541_xls.exe	26
PID 1432 wrote to memory of 1780	1432	电汇确认宝2541_xls.exe	28
PID 1432 wrote to memory of 1780	1432	电汇确认宝2541_xls.exe	28
PID 1432 wrote to memory of 1780	1432	电汇确认宝2541_xls.exe	28
PID 1432 wrote to memory of 1780	1432	电汇确认宝2541_xls.exe	28

C:\Users\Admin\AppData\Local\Temp\电汇确认宝2541_xls.exe
"C:\Users\Admin\AppData\Local\Temp\电汇确认宝2541_xls.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gQHbHbLsIYAp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5BF4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 996
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1432-0-0x0000000073BD0000-0x00000000742BE000-memory.dmp

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memory/1432-1-0x0000000001050000-0x0000000001051000-memory.dmp

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memory/1432-3-0x0000000000580000-0x000000000058B000-memory.dmp

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memory/1432-4-0x0000000000F30000-0x0000000000F83000-memory.dmp

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memory/1432-5-0x0000000000990000-0x00000000009BC000-memory.dmp

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memory/1780-9-0x0000000001FA0000-0x0000000001FB1000-memory.dmp

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memory/1780-12-0x00000000028A0000-0x00000000028B1000-memory.dmp

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