ece8df8fb687240325d92b5a71371530e1207aa8da009a198a9a590a76e64325

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 04:42

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General

Target

73c3885526ddf2d25613d932e5cfd16d.exe
Size

24KB
MD5

73c3885526ddf2d25613d932e5cfd16d
SHA1

ed448612649f3fdb276e049a067c9c766fea8be6
SHA256

ece8df8fb687240325d92b5a71371530e1207aa8da009a198a9a590a76e64325
SHA512

23d426d7813647d738405bf664c91952535b3b446e6bb8fb48f60008c9368946e5f72c5e0be7f6e984a042cc8074c21c42b35176b94579afb4c18e117d183ea3
SSDEEP

384:E3eVES+/xwGkRKJh4plM61qmTTMVF9/q5D0:bGS+ZfbJUO8qYoAo

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"	73c3885526ddf2d25613d932e5cfd16d.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	73c3885526ddf2d25613d932e5cfd16d.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
1668	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
1528	ipconfig.exe
2612	NETSTAT.EXE

Runs net.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	tasklist.exe
Token: SeDebugPrivilege	2612	NETSTAT.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2124	73c3885526ddf2d25613d932e5cfd16d.exe
2124	73c3885526ddf2d25613d932e5cfd16d.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 856	2124	73c3885526ddf2d25613d932e5cfd16d.exe	28
PID 2124 wrote to memory of 856	2124	73c3885526ddf2d25613d932e5cfd16d.exe	28
PID 2124 wrote to memory of 856	2124	73c3885526ddf2d25613d932e5cfd16d.exe	28
PID 2124 wrote to memory of 856	2124	73c3885526ddf2d25613d932e5cfd16d.exe	28
PID 856 wrote to memory of 1708	856	cmd.exe	30
PID 856 wrote to memory of 1708	856	cmd.exe	30
PID 856 wrote to memory of 1708	856	cmd.exe	30
PID 856 wrote to memory of 1708	856	cmd.exe	30
PID 856 wrote to memory of 1528	856	cmd.exe	31
PID 856 wrote to memory of 1528	856	cmd.exe	31
PID 856 wrote to memory of 1528	856	cmd.exe	31
PID 856 wrote to memory of 1528	856	cmd.exe	31
PID 856 wrote to memory of 1668	856	cmd.exe	32
PID 856 wrote to memory of 1668	856	cmd.exe	32
PID 856 wrote to memory of 1668	856	cmd.exe	32
PID 856 wrote to memory of 1668	856	cmd.exe	32
PID 856 wrote to memory of 2564	856	cmd.exe	34
PID 856 wrote to memory of 2564	856	cmd.exe	34
PID 856 wrote to memory of 2564	856	cmd.exe	34
PID 856 wrote to memory of 2564	856	cmd.exe	34
PID 2564 wrote to memory of 2704	2564	net.exe	35
PID 2564 wrote to memory of 2704	2564	net.exe	35
PID 2564 wrote to memory of 2704	2564	net.exe	35
PID 2564 wrote to memory of 2704	2564	net.exe	35
PID 856 wrote to memory of 2612	856	cmd.exe	36
PID 856 wrote to memory of 2612	856	cmd.exe	36
PID 856 wrote to memory of 2612	856	cmd.exe	36
PID 856 wrote to memory of 2612	856	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\73c3885526ddf2d25613d932e5cfd16d.exe
"C:\Users\Admin\AppData\Local\Temp\73c3885526ddf2d25613d932e5cfd16d.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2124
- 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:856
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c set
    3⤵
    PID:1708
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:1528
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:1668
- - C:\Windows\SysWOW64\net.exe
    net start
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2564
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start
      4⤵
      PID:2704
- - C:\Windows\SysWOW64\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:2612

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
8a816002464242f15ae5b1256647bc4a

SHA1
12cc636ae94ecb17317d007e5e447170cd421cc1

SHA256
493c3fd11c96b4c9428a1a923d90a08090e27fd2262794b8004a75b3531e9885

SHA512
e8512991bcb3a4a9c09d4bb51c8905c905136ac1513759d8ab57f7a0c4fc86a9e4c2061ac2be7a2658047b34d4a4a2088b8f27395603632a0e4af1c78824c8e9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads