c9fe6717de03d8cc379f5751c51b5f18efc2863e5a5e42959cba24c78d8ea830

Analysis

max time kernel
138s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 10:45

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General

Target

16528fb50ac55149b4f4e19b5f8cda4a.exe
Size

24KB
MD5

16528fb50ac55149b4f4e19b5f8cda4a
SHA1

b27ce5064ff92cf52e91903e7f8844af47a67e83
SHA256

c9fe6717de03d8cc379f5751c51b5f18efc2863e5a5e42959cba24c78d8ea830
SHA512

6aae4ed7f7a0587b266c61be25e1fc629103634f9489e7d204e05fb88e728892711c55e5a0cbd7bd60fd89b19953787a3b2383327545b056c20ec302e303194d
SSDEEP

384:E3eVES+/xwGkRKJilM61qmTTMVF9/q500:bGS+ZfbJiO8qYoA1

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"	16528fb50ac55149b4f4e19b5f8cda4a.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	16528fb50ac55149b4f4e19b5f8cda4a.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
184	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
512	NETSTAT.EXE
2332	ipconfig.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	184	tasklist.exe
Token: SeDebugPrivilege	512	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1864	16528fb50ac55149b4f4e19b5f8cda4a.exe
1864	16528fb50ac55149b4f4e19b5f8cda4a.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 4612	1864	16528fb50ac55149b4f4e19b5f8cda4a.exe	88
PID 1864 wrote to memory of 4612	1864	16528fb50ac55149b4f4e19b5f8cda4a.exe	88
PID 1864 wrote to memory of 4612	1864	16528fb50ac55149b4f4e19b5f8cda4a.exe	88
PID 4612 wrote to memory of 3260	4612	cmd.exe	91
PID 4612 wrote to memory of 3260	4612	cmd.exe	91
PID 4612 wrote to memory of 3260	4612	cmd.exe	91
PID 4612 wrote to memory of 2332	4612	cmd.exe	92
PID 4612 wrote to memory of 2332	4612	cmd.exe	92
PID 4612 wrote to memory of 2332	4612	cmd.exe	92
PID 4612 wrote to memory of 184	4612	cmd.exe	94
PID 4612 wrote to memory of 184	4612	cmd.exe	94
PID 4612 wrote to memory of 184	4612	cmd.exe	94
PID 4612 wrote to memory of 1488	4612	cmd.exe	97
PID 4612 wrote to memory of 1488	4612	cmd.exe	97
PID 4612 wrote to memory of 1488	4612	cmd.exe	97
PID 1488 wrote to memory of 2996	1488	net.exe	98
PID 1488 wrote to memory of 2996	1488	net.exe	98
PID 1488 wrote to memory of 2996	1488	net.exe	98
PID 4612 wrote to memory of 512	4612	cmd.exe	99
PID 4612 wrote to memory of 512	4612	cmd.exe	99
PID 4612 wrote to memory of 512	4612	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\16528fb50ac55149b4f4e19b5f8cda4a.exe
"C:\Users\Admin\AppData\Local\Temp\16528fb50ac55149b4f4e19b5f8cda4a.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1864
- 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:4612
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:3260
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:2332
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:184
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1488
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2996
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:512

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
14KB

MD5
30cc7d36fc9f81f0a1f78f61aaffcae3

SHA1
b7b61a76507e3105a546b52c1a8b882f9a3e7077

SHA256
9bd868d297f93ed0f3865627c9246321449d4cc43d4b1e27b0aba6a2c952c2db

SHA512
aaca8fbf42e95862ea2621d5e5ad10219498bfe6357341b6ee51d3c72129f05114ceca111d08b232091d532e6794f8408c854d189a7381b874986f1333d2807d

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads