3cc5fe9fa9f6d43230f0e5c68bcfdd60e7af72d40834b67a5edaa274ad8a5cd9

Analysis

max time kernel
144s
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
31-12-2023 14:31

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General

Target

39e6dec3c805007e246b98ef271871de.exe
Size

24KB
MD5

39e6dec3c805007e246b98ef271871de
SHA1

f3845a2970701f8bbaae83ecbdb1c86473072766
SHA256

3cc5fe9fa9f6d43230f0e5c68bcfdd60e7af72d40834b67a5edaa274ad8a5cd9
SHA512

b8e1d9692dda7cf2dbd88947649cc6a401a8f00df3da927a247d53f9e2525669aa6556de3210f29574603a48e81dfcf3d66b880e683ebe0115f0a3632bd105df
SSDEEP

384:E3eVES+/xwGkRKJilM61qmTTMVF9/q570:bGS+ZfbJiO8qYoAQ

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"	39e6dec3c805007e246b98ef271871de.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	39e6dec3c805007e246b98ef271871de.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
3140	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
3520	NETSTAT.EXE
5096	ipconfig.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3140	tasklist.exe
Token: SeDebugPrivilege	3520	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1004	39e6dec3c805007e246b98ef271871de.exe
1004	39e6dec3c805007e246b98ef271871de.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1004 wrote to memory of 1992	1004	39e6dec3c805007e246b98ef271871de.exe	89
PID 1004 wrote to memory of 1992	1004	39e6dec3c805007e246b98ef271871de.exe	89
PID 1004 wrote to memory of 1992	1004	39e6dec3c805007e246b98ef271871de.exe	89
PID 1992 wrote to memory of 4268	1992	cmd.exe	91
PID 1992 wrote to memory of 4268	1992	cmd.exe	91
PID 1992 wrote to memory of 4268	1992	cmd.exe	91
PID 1992 wrote to memory of 5096	1992	cmd.exe	92
PID 1992 wrote to memory of 5096	1992	cmd.exe	92
PID 1992 wrote to memory of 5096	1992	cmd.exe	92
PID 1992 wrote to memory of 3140	1992	cmd.exe	93
PID 1992 wrote to memory of 3140	1992	cmd.exe	93
PID 1992 wrote to memory of 3140	1992	cmd.exe	93
PID 1992 wrote to memory of 2524	1992	cmd.exe	96
PID 1992 wrote to memory of 2524	1992	cmd.exe	96
PID 1992 wrote to memory of 2524	1992	cmd.exe	96
PID 2524 wrote to memory of 2828	2524	net.exe	97
PID 2524 wrote to memory of 2828	2524	net.exe	97
PID 2524 wrote to memory of 2828	2524	net.exe	97
PID 1992 wrote to memory of 3520	1992	cmd.exe	98
PID 1992 wrote to memory of 3520	1992	cmd.exe	98
PID 1992 wrote to memory of 3520	1992	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\39e6dec3c805007e246b98ef271871de.exe
"C:\Users\Admin\AppData\Local\Temp\39e6dec3c805007e246b98ef271871de.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1004
- 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:1992
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:4268
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:5096
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:3140
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2524
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2828
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:3520

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
ac21ba15aa0b041239e66b5dd22042b5

SHA1
2ef000eaa28b17cb734f6e30dcaaf61634af1b73

SHA256
7e2391c5529f89cfeb71c944aeea3e8611ec12d3d33d8ed9dd334aee9479298f

SHA512
2b26d57d69492b2011514ffe037d6d4e770a594660830461ec5f312e9eb2197305d62fa298620e9f236349c81ff4f17c2f0511ab08aba99a0bfaf92b696427f2

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads