zloader | ce9d8545eb14f98f81526457b784ada2e37057dae2d74f625e47b4ed10549397

Analysis

max time kernel
150s
max time network
152s
platform
windows10_x64
resource
win10
submitted
09-08-2020 13:28

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General

Target

ce9d8545eb14f98f81526457b784ada2e37057dae2d74f625e47b4ed10549397.dll
Size

155KB
MD5

cd57e5511bb7c0390eb83b772c84de65
SHA1

5c6e3c717dfab4b0eb3ddfa6f3062355823f2088
SHA256

ce9d8545eb14f98f81526457b784ada2e37057dae2d74f625e47b4ed10549397
SHA512

036e4ded92ed1ee28ab79dfd19116c7b86fac5c3a9ca5cc7f92f4cbd5b4a4771a6dc01af93a5b65d53a0367dd684eb52bb81a51621baa56e84cbd4007406d362

Score

10^/10

trojan botnet zloader persistence spyware

Malware Config

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Blacklisted process makes network request 18 IoCs

flow	pid	Process
14	3904	msiexec.exe
15	3904	msiexec.exe
16	3904	msiexec.exe
17	3904	msiexec.exe
18	3904	msiexec.exe
19	3904	msiexec.exe
20	3904	msiexec.exe
21	3904	msiexec.exe
22	3904	msiexec.exe
24	3904	msiexec.exe
25	3904	msiexec.exe
27	3904	msiexec.exe
28	3904	msiexec.exe
29	3904	msiexec.exe
31	3904	msiexec.exe
40	3904	msiexec.exe
41	3904	msiexec.exe
42	3904	msiexec.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yqpesue = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Tyumal\\anxa.dll"	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3880 set thread context of 3904	3880	rundll32.exe	68

Discovers systems in the same network 1 TTPs 2 IoCs

discovery

Remote System Discovery

T1018

pid	Process
3668	net.exe
3352	net.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
392	ipconfig.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3904	msiexec.exe
3904	msiexec.exe
3904	msiexec.exe
3904	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3904	msiexec.exe
Token: SeSecurityPrivilege	3904	msiexec.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 3832 wrote to memory of 3880	3832	rundll32.exe	67
PID 3832 wrote to memory of 3880	3832	rundll32.exe	67
PID 3832 wrote to memory of 3880	3832	rundll32.exe	67
PID 3880 wrote to memory of 3904	3880	rundll32.exe	68
PID 3880 wrote to memory of 3904	3880	rundll32.exe	68
PID 3880 wrote to memory of 3904	3880	rundll32.exe	68
PID 3880 wrote to memory of 3904	3880	rundll32.exe	68
PID 3880 wrote to memory of 3904	3880	rundll32.exe	68
PID 3904 wrote to memory of 4016	3904	msiexec.exe	69
PID 3904 wrote to memory of 4016	3904	msiexec.exe	69
PID 3904 wrote to memory of 4016	3904	msiexec.exe	69
PID 4016 wrote to memory of 392	4016	cmd.exe	71
PID 4016 wrote to memory of 392	4016	cmd.exe	71
PID 4016 wrote to memory of 392	4016	cmd.exe	71
PID 3904 wrote to memory of 732	3904	msiexec.exe	72
PID 3904 wrote to memory of 732	3904	msiexec.exe	72
PID 3904 wrote to memory of 732	3904	msiexec.exe	72
PID 732 wrote to memory of 2868	732	cmd.exe	74
PID 732 wrote to memory of 2868	732	cmd.exe	74
PID 732 wrote to memory of 2868	732	cmd.exe	74
PID 2868 wrote to memory of 3044	2868	net.exe	75
PID 2868 wrote to memory of 3044	2868	net.exe	75
PID 2868 wrote to memory of 3044	2868	net.exe	75
PID 3904 wrote to memory of 3664	3904	msiexec.exe	76
PID 3904 wrote to memory of 3664	3904	msiexec.exe	76
PID 3904 wrote to memory of 3664	3904	msiexec.exe	76
PID 3664 wrote to memory of 3668	3664	cmd.exe	78
PID 3664 wrote to memory of 3668	3664	cmd.exe	78
PID 3664 wrote to memory of 3668	3664	cmd.exe	78
PID 3904 wrote to memory of 3920	3904	msiexec.exe	79
PID 3904 wrote to memory of 3920	3904	msiexec.exe	79
PID 3904 wrote to memory of 3920	3904	msiexec.exe	79
PID 3920 wrote to memory of 3352	3920	cmd.exe	81
PID 3920 wrote to memory of 3352	3920	cmd.exe	81
PID 3920 wrote to memory of 3352	3920	cmd.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce9d8545eb14f98f81526457b784ada2e37057dae2d74f625e47b4ed10549397.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce9d8545eb14f98f81526457b784ada2e37057dae2d74f625e47b4ed10549397.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3880
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec.exe
    3⤵
    - Blacklisted process makes network request
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3904
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ipconfig /all
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4016
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig /all
        5⤵
        Gathers network information
        
        PID:392
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c net config workstation
      4⤵
      Suspicious use of WriteProcessMemory
      PID:732
    - - C:\Windows\SysWOW64\net.exe
        
        net config workstation
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2868
      - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 config workstation
        6⤵
        
        PID:3044
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c net view /all
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3664
    - - C:\Windows\SysWOW64\net.exe
        
        net view /all
        5⤵
        Discovers systems in the same network
        
        PID:3668
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c net view /all /domain
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3920
    - - C:\Windows\SysWOW64\net.exe
        
        net view /all /domain
        5⤵
        Discovers systems in the same network
        
        PID:3352