089e8696eff20b84e89e801127624dada3b321b0523d45cb648d437af4271716

Analysis

max time kernel
148s
max time network
149s
platform
windows10_x64
resource
win10v20201028
submitted
18/12/2020, 16:54

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General

Target
c6efcca55f7989b5434effe9bd80cc80.exe
Size 2.0MB
Sample201218-2gwff72xca
SHA256 089e8696eff20b84e89e801127624dada3b321b0523d45cb648d437af4271716
MD5 c6efcca55f7989b5434effe9bd80cc80
SHA1 4c3cb785fd7f3c9eb8e881d7aab7bdabe1dfa918
SHA512 e22f238e2195ea594d9ee798c925feb694fbc5d47119f5de4ab7cc7320c16b9f88ca387c804f74a6130f58b40deef0e202a97ad85fbcda37cb8d62473d8cb906
MD5 SHA1 SHA512

Score

7^/10

persistence

Malware Config

Signatures

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\140246.lnk	c6efcca55f7989b5434effe9bd80cc80.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\140246.lnk	c6efcca55f7989b5434effe9bd80cc80.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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run	c6efcca55f7989b5434effe9bd80cc80.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost3 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\140246.lnk"	c6efcca55f7989b5434effe9bd80cc80.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4004 set thread context of 1776	4004	c6efcca55f7989b5434effe9bd80cc80.exe	74

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4004	c6efcca55f7989b5434effe9bd80cc80.exe
4004	c6efcca55f7989b5434effe9bd80cc80.exe
4004	c6efcca55f7989b5434effe9bd80cc80.exe
4004	c6efcca55f7989b5434effe9bd80cc80.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
4004	c6efcca55f7989b5434effe9bd80cc80.exe
4004	c6efcca55f7989b5434effe9bd80cc80.exe
4004	c6efcca55f7989b5434effe9bd80cc80.exe
4004	c6efcca55f7989b5434effe9bd80cc80.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1776	RegAsm.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 1776	4004	c6efcca55f7989b5434effe9bd80cc80.exe	74
PID 4004 wrote to memory of 1776	4004	c6efcca55f7989b5434effe9bd80cc80.exe	74
PID 4004 wrote to memory of 1776	4004	c6efcca55f7989b5434effe9bd80cc80.exe	74
PID 4004 wrote to memory of 1776	4004	c6efcca55f7989b5434effe9bd80cc80.exe	74
PID 4004 wrote to memory of 1776	4004	c6efcca55f7989b5434effe9bd80cc80.exe	74

C:\Users\Admin\AppData\Local\Temp\c6efcca55f7989b5434effe9bd80cc80.exe
"C:\Users\Admin\AppData\Local\Temp\c6efcca55f7989b5434effe9bd80cc80.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1776-3-0x0000000000400000-0x00000000004DC000-memory.dmp

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