887a17bf1529c2a6363b2e8ad2cd2a48c6bfc105c769283b7ffca92659b1146d

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26-12-2023 00:16

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General

Target

45b3b5f3265a7cb4baa99c2565c28700.exe
Size

24KB
MD5

45b3b5f3265a7cb4baa99c2565c28700
SHA1

75832df4a99cd192d0fee4cfabbaa05058996c81
SHA256

887a17bf1529c2a6363b2e8ad2cd2a48c6bfc105c769283b7ffca92659b1146d
SHA512

c0d9a5aef37cc130cf00d4ea306048eca8c98154092e8daf8c92d0d317676acc41e4021d940307ab7b70ce518b71216995eb7c1467037e48f46f6520219ae808
SSDEEP

384:E3eVES+/xwGkRKJqURlM61qmTTMVF9/q5N0:bGS+ZfbJVO8qYoAi

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"	45b3b5f3265a7cb4baa99c2565c28700.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	45b3b5f3265a7cb4baa99c2565c28700.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2160	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
1936	NETSTAT.EXE
2376	ipconfig.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2160	tasklist.exe
Token: SeDebugPrivilege	1936	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2336	45b3b5f3265a7cb4baa99c2565c28700.exe
2336	45b3b5f3265a7cb4baa99c2565c28700.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2380	2336	45b3b5f3265a7cb4baa99c2565c28700.exe	28
PID 2336 wrote to memory of 2380	2336	45b3b5f3265a7cb4baa99c2565c28700.exe	28
PID 2336 wrote to memory of 2380	2336	45b3b5f3265a7cb4baa99c2565c28700.exe	28
PID 2336 wrote to memory of 2380	2336	45b3b5f3265a7cb4baa99c2565c28700.exe	28
PID 2380 wrote to memory of 2804	2380	cmd.exe	30
PID 2380 wrote to memory of 2804	2380	cmd.exe	30
PID 2380 wrote to memory of 2804	2380	cmd.exe	30
PID 2380 wrote to memory of 2804	2380	cmd.exe	30
PID 2380 wrote to memory of 2376	2380	cmd.exe	31
PID 2380 wrote to memory of 2376	2380	cmd.exe	31
PID 2380 wrote to memory of 2376	2380	cmd.exe	31
PID 2380 wrote to memory of 2376	2380	cmd.exe	31
PID 2380 wrote to memory of 2160	2380	cmd.exe	32
PID 2380 wrote to memory of 2160	2380	cmd.exe	32
PID 2380 wrote to memory of 2160	2380	cmd.exe	32
PID 2380 wrote to memory of 2160	2380	cmd.exe	32
PID 2380 wrote to memory of 2736	2380	cmd.exe	34
PID 2380 wrote to memory of 2736	2380	cmd.exe	34
PID 2380 wrote to memory of 2736	2380	cmd.exe	34
PID 2380 wrote to memory of 2736	2380	cmd.exe	34
PID 2736 wrote to memory of 2888	2736	net.exe	35
PID 2736 wrote to memory of 2888	2736	net.exe	35
PID 2736 wrote to memory of 2888	2736	net.exe	35
PID 2736 wrote to memory of 2888	2736	net.exe	35
PID 2380 wrote to memory of 1936	2380	cmd.exe	36
PID 2380 wrote to memory of 1936	2380	cmd.exe	36
PID 2380 wrote to memory of 1936	2380	cmd.exe	36
PID 2380 wrote to memory of 1936	2380	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\45b3b5f3265a7cb4baa99c2565c28700.exe
"C:\Users\Admin\AppData\Local\Temp\45b3b5f3265a7cb4baa99c2565c28700.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2336
- 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:2380
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:2804
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:2376
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2160
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2736
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2888
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:1936

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
8KB

MD5
f5ac39e4bff63db4b27e4189afdbaf94

SHA1
9be91739d499042cc2ec12a20a6c8948cd133945

SHA256
58a5d1e55ada1391757b48ef55496397dbade6ac821003fca179cafb8e2dfdf4

SHA512
6080c148fe1f775ab88daaf7fbc260c4e6b84fead501123f257e162cb3e8a5153de33b6dc7989d5bc32252022459a98d333f53494a7c78ad46f137e87bdfe234

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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