637187013f30d12855bae6f3e4c33824a06485ec75f3d452c733895b28ca9d77

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 00:00

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General

Target

1b5b2959570cded90de2026af45870f9.exe
Size

24KB
MD5

1b5b2959570cded90de2026af45870f9
SHA1

c15a49e0ff515adb6ad7d80bd55192d29f682866
SHA256

637187013f30d12855bae6f3e4c33824a06485ec75f3d452c733895b28ca9d77
SHA512

0a1eb247e47f2d1c1f5bd9596875a980c85812057c69408a8e3ec4f2e29fa6133ba498117aff2d0deaa3fc9c9bcb0897368e320f8d01fa29797bed75e65108b5
SSDEEP

384:E3eVES+/xwGkRKJL1lM61qmTTMVF9/q5IjN0:bGS+ZfbJBO8qYoAIW

Score

6^/10

persistence

Malware Config

Signatures

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Start GeekBuddy = "C:\\Program Files\\Common Files\\Microsoft Shared\\Web Folders\\1033\\spoolsv.exe"	1b5b2959570cded90de2026af45870f9.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\Microsoft Shared\Web Folders\1033\spoolsv.exe	1b5b2959570cded90de2026af45870f9.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
4852	tasklist.exe

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
3732	ipconfig.exe
5116	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4852	tasklist.exe
Token: SeDebugPrivilege	5116	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2812	1b5b2959570cded90de2026af45870f9.exe
2812	1b5b2959570cded90de2026af45870f9.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 1552	2812	1b5b2959570cded90de2026af45870f9.exe	88
PID 2812 wrote to memory of 1552	2812	1b5b2959570cded90de2026af45870f9.exe	88
PID 2812 wrote to memory of 1552	2812	1b5b2959570cded90de2026af45870f9.exe	88
PID 1552 wrote to memory of 2816	1552	cmd.exe	90
PID 1552 wrote to memory of 2816	1552	cmd.exe	90
PID 1552 wrote to memory of 2816	1552	cmd.exe	90
PID 1552 wrote to memory of 3732	1552	cmd.exe	91
PID 1552 wrote to memory of 3732	1552	cmd.exe	91
PID 1552 wrote to memory of 3732	1552	cmd.exe	91
PID 1552 wrote to memory of 4852	1552	cmd.exe	92
PID 1552 wrote to memory of 4852	1552	cmd.exe	92
PID 1552 wrote to memory of 4852	1552	cmd.exe	92
PID 1552 wrote to memory of 1316	1552	cmd.exe	94
PID 1552 wrote to memory of 1316	1552	cmd.exe	94
PID 1552 wrote to memory of 1316	1552	cmd.exe	94
PID 1316 wrote to memory of 2784	1316	net.exe	95
PID 1316 wrote to memory of 2784	1316	net.exe	95
PID 1316 wrote to memory of 2784	1316	net.exe	95
PID 1552 wrote to memory of 5116	1552	cmd.exe	96
PID 1552 wrote to memory of 5116	1552	cmd.exe	96
PID 1552 wrote to memory of 5116	1552	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\1b5b2959570cded90de2026af45870f9.exe
"C:\Users\Admin\AppData\Local\Temp\1b5b2959570cded90de2026af45870f9.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ver >c:\windows\temp\flash.log & cmd /c set >>c:\windows\temp\flash.log & ipconfig /all >>c:\windows\temp\flash.log & tasklist >>c:\windows\temp\flash.log & net start>>c:\windows\temp\flash.log & netstat -an >>c:\windows\temp\flash.log
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1552
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:2816
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:3732
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:4852
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1316
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2784
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:5116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Process Discovery

T1057

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\windows\temp\flash.log

Filesize
15KB

MD5
f5e7168ad72d9e70c4e63685fca8f6fa

SHA1
3db69fb480993b23e78ebc37fc96c6fd32ae7559

SHA256
aac7602f5f9b4fb46b3a485aca3159dfbed911aaaf27e23802d9d57707c6c469

SHA512
51e05ebc6fce4e2d6e236719c7d2f486358e159882fee3b661fc2f54622346558a17580ea85d437e4a4c66822863f70ce29c3494b4985634c69a3316a6cbc133

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads