35dc32da768bef8418115e74614adc7923b76deb80c70dac16f66c284073a7a2

Analysis

max time kernel
142s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29-12-2023 20:05

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General

Target

028cb7104438cb56b0047bc406a87463.exe
Size

194KB
MD5

028cb7104438cb56b0047bc406a87463
SHA1

b43b696f14adf98383a3976423f7065640f0bea3
SHA256

35dc32da768bef8418115e74614adc7923b76deb80c70dac16f66c284073a7a2
SHA512

8670a981cdf239f4bc2eb08d636db23c557ba8d049b97393d09bb5cd9bdd762458f0778a2ea2a15d1cd1358d8f495fd94fdae6a2659c8f55554dc0181b2d6fd5
SSDEEP

6144:pso7MZqwr1ePCft/hUOC36u3of1xPw7Xn:YhF1y3D8I7X

Score

10^/10

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\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\028cb7104438cb56b0047bc406a87463.exe"	028cb7104438cb56b0047bc406a87463.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2992-1-0x0000000000400000-0x000000000043B000-memory.dmp	upx
behavioral1/memory/2992-3-0x0000000000400000-0x000000000043B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\028cb7104438cb56b0047bc406a87463.exe"	028cb7104438cb56b0047bc406a87463.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2484	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2484	taskkill.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 2484	2992	028cb7104438cb56b0047bc406a87463.exe	28
PID 2992 wrote to memory of 2484	2992	028cb7104438cb56b0047bc406a87463.exe	28
PID 2992 wrote to memory of 2484	2992	028cb7104438cb56b0047bc406a87463.exe	28
PID 2992 wrote to memory of 2484	2992	028cb7104438cb56b0047bc406a87463.exe	28

C:\Users\Admin\AppData\Local\Temp\028cb7104438cb56b0047bc406a87463.exe
"C:\Users\Admin\AppData\Local\Temp\028cb7104438cb56b0047bc406a87463.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM explorer.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2992-0-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/2992-1-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/2992-2-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2992-3-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads