a398dc51997020f58391c14df28f2ff3c0fab5441a02392198c4f8c4eadf0647

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02-02-2024 22:14

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General

Target

a398dc51997020f58391c14df28f2ff3c0fab5441a02392198c4f8c4eadf0647.vbs
Size

5KB
MD5

cea2abd74d72709fa6b90172997e0aea
SHA1

bb61857a4831a50400ff51519c74b63ae987441a
SHA256

a398dc51997020f58391c14df28f2ff3c0fab5441a02392198c4f8c4eadf0647
SHA512

bbcadf063b54a4c7db30aff1ecb2aab9ca57750c68450b0f248e43b3f61502386e3f041a6819629c821235d524ed3d7181980fbea2c2dbe93a2616f7c473bf0d
SSDEEP

96:1Qt0p9Ab5yJcp/0WcXStgE2j208h6OEelg/p5rOBzFcR+Wg75tOBPFcR+WghWE:1PwGMgE2jXC66WrfgWMtbgWMn

Score

9^/10

discovery persistence

Malware Config

Signatures

Grants admin privileges 1 TTPs
Uses net.exe to modify the user's privileges.

Account Manipulation
T1098

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	2668	WScript.exe
7	2668	WScript.exe

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\Microsoft\Windows\CurrentVersion\Run\AdminSoft = "c:\\Windows\\System32\\sysfile.vbs"	WScript.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\sysfile.vbs	WScript.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\cd.exe	WScript.exe
File created	\??\c:\windows\hidestart.exe	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Runs net.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 3024	2668	WScript.exe	28
PID 2668 wrote to memory of 3024	2668	WScript.exe	28
PID 2668 wrote to memory of 3024	2668	WScript.exe	28
PID 2668 wrote to memory of 2796	2668	WScript.exe	30
PID 2668 wrote to memory of 2796	2668	WScript.exe	30
PID 2668 wrote to memory of 2796	2668	WScript.exe	30
PID 2668 wrote to memory of 2780	2668	WScript.exe	32
PID 2668 wrote to memory of 2780	2668	WScript.exe	32
PID 2668 wrote to memory of 2780	2668	WScript.exe	32
PID 2796 wrote to memory of 2700	2796	net.exe	36
PID 2796 wrote to memory of 2700	2796	net.exe	36
PID 2796 wrote to memory of 2700	2796	net.exe	36
PID 2780 wrote to memory of 2804	2780	net.exe	35
PID 2780 wrote to memory of 2804	2780	net.exe	35
PID 2780 wrote to memory of 2804	2780	net.exe	35
PID 3024 wrote to memory of 2612	3024	net.exe	34
PID 3024 wrote to memory of 2612	3024	net.exe	34
PID 3024 wrote to memory of 2612	3024	net.exe	34
PID 2668 wrote to memory of 2232	2668	WScript.exe	37
PID 2668 wrote to memory of 2232	2668	WScript.exe	37
PID 2668 wrote to memory of 2232	2668	WScript.exe	37
PID 2232 wrote to memory of 2560	2232	net.exe	39
PID 2232 wrote to memory of 2560	2232	net.exe	39
PID 2232 wrote to memory of 2560	2232	net.exe	39
PID 2668 wrote to memory of 1516	2668	WScript.exe	41
PID 2668 wrote to memory of 1516	2668	WScript.exe	41
PID 2668 wrote to memory of 1516	2668	WScript.exe	41
PID 1516 wrote to memory of 860	1516	net.exe	43
PID 1516 wrote to memory of 860	1516	net.exe	43
PID 1516 wrote to memory of 860	1516	net.exe	43
PID 2668 wrote to memory of 2136	2668	WScript.exe	44
PID 2668 wrote to memory of 2136	2668	WScript.exe	44
PID 2668 wrote to memory of 2136	2668	WScript.exe	44
PID 2136 wrote to memory of 1720	2136	net.exe	46
PID 2136 wrote to memory of 1720	2136	net.exe	46
PID 2136 wrote to memory of 1720	2136	net.exe	46
PID 2668 wrote to memory of 2960	2668	WScript.exe	47
PID 2668 wrote to memory of 2960	2668	WScript.exe	47
PID 2668 wrote to memory of 2960	2668	WScript.exe	47
PID 2960 wrote to memory of 2856	2960	net.exe	49
PID 2960 wrote to memory of 2856	2960	net.exe	49
PID 2960 wrote to memory of 2856	2960	net.exe	49

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\a398dc51997020f58391c14df28f2ff3c0fab5441a02392198c4f8c4eadf0647.vbs"
1⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" user startbug /add
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user startbug /add
    3⤵
    PID:2612
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" user startbug startbug /add
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user startbug startbug /add
    3⤵
    PID:2700
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" localgroup administrators startbug /add
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 localgroup administrators startbug /add
    3⤵
    PID:2804
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" stop themes
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 stop themes
    3⤵
    PID:2560
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" start themes
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1516
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 start themes
    3⤵
    PID:860
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" stop themes
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 stop themes
    3⤵
    PID:1720
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" start themes
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 start themes
    3⤵
    PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Account Manipulation

T1098

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Account Manipulation

T1098

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\hidestart.exe

Filesize
41KB

MD5
0ddd9bd4460b827dbf6b20dbf17fd04c

SHA1
11a0ddcf0b168fb859745d97cd28864e84496c08

SHA256
f99c7a088a444339d97a12b5342bc31914a43253ff2ea8b62d36cb30b438e0eb

SHA512
179e5e0fae812ab84f6a74db0949e02998f83e32f6b4f679171cb4e2133c333febe682b5b044feef5562661f60ef8ba842657859101ebcf26d5f82f75cba2088

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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