zloader | ce9d8545eb14f98f81526457b784ada2e37057dae2d74f625e47b4ed10549397

Analysis

max time kernel
151s
max time network
147s
platform
windows7_x64
resource
win7v200722
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

spyware trojan botnet zloader persistence

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
11	1696	msiexec.exe
12	1696	msiexec.exe
13	1696	msiexec.exe
14	1696	msiexec.exe
15	1696	msiexec.exe
16	1696	msiexec.exe
17	1696	msiexec.exe
18	1696	msiexec.exe
19	1696	msiexec.exe
21	1696	msiexec.exe
22	1696	msiexec.exe
23	1696	msiexec.exe
24	1696	msiexec.exe
25	1696	msiexec.exe
26	1696	msiexec.exe
27	1696	msiexec.exe
28	1696	msiexec.exe
29	1696	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-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ocuwu = "regsvr32.exe /s C:\\Users\\Admin\\AppData\\Roaming\\Zalo\\inpa.dll"	msiexec.exe

Modifies service 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Shas	ipconfig.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Qecs	ipconfig.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1056 set thread context of 1696	1056	rundll32.exe	25

Discovers systems in the same network 1 TTPs 2 IoCs

discovery

Remote System Discovery

T1018

pid	Process
1576	net.exe
1548	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
824	ipconfig.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1696	msiexec.exe
1696	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1696	msiexec.exe
Token: SeSecurityPrivilege	1696	msiexec.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1056	748	rundll32.exe	24
PID 748 wrote to memory of 1056	748	rundll32.exe	24
PID 748 wrote to memory of 1056	748	rundll32.exe	24
PID 748 wrote to memory of 1056	748	rundll32.exe	24
PID 748 wrote to memory of 1056	748	rundll32.exe	24
PID 748 wrote to memory of 1056	748	rundll32.exe	24
PID 748 wrote to memory of 1056	748	rundll32.exe	24
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1056 wrote to memory of 1696	1056	rundll32.exe	25
PID 1696 wrote to memory of 2000	1696	msiexec.exe	32
PID 1696 wrote to memory of 2000	1696	msiexec.exe	32
PID 1696 wrote to memory of 2000	1696	msiexec.exe	32
PID 1696 wrote to memory of 2000	1696	msiexec.exe	32
PID 2000 wrote to memory of 824	2000	cmd.exe	34
PID 2000 wrote to memory of 824	2000	cmd.exe	34
PID 2000 wrote to memory of 824	2000	cmd.exe	34
PID 2000 wrote to memory of 824	2000	cmd.exe	34
PID 1696 wrote to memory of 1060	1696	msiexec.exe	35
PID 1696 wrote to memory of 1060	1696	msiexec.exe	35
PID 1696 wrote to memory of 1060	1696	msiexec.exe	35
PID 1696 wrote to memory of 1060	1696	msiexec.exe	35
PID 1060 wrote to memory of 1456	1060	cmd.exe	37
PID 1060 wrote to memory of 1456	1060	cmd.exe	37
PID 1060 wrote to memory of 1456	1060	cmd.exe	37
PID 1060 wrote to memory of 1456	1060	cmd.exe	37
PID 1456 wrote to memory of 788	1456	net.exe	38
PID 1456 wrote to memory of 788	1456	net.exe	38
PID 1456 wrote to memory of 788	1456	net.exe	38
PID 1456 wrote to memory of 788	1456	net.exe	38
PID 1696 wrote to memory of 992	1696	msiexec.exe	39
PID 1696 wrote to memory of 992	1696	msiexec.exe	39
PID 1696 wrote to memory of 992	1696	msiexec.exe	39
PID 1696 wrote to memory of 992	1696	msiexec.exe	39
PID 992 wrote to memory of 1576	992	cmd.exe	42
PID 992 wrote to memory of 1576	992	cmd.exe	42
PID 992 wrote to memory of 1576	992	cmd.exe	42
PID 992 wrote to memory of 1576	992	cmd.exe	42
PID 1696 wrote to memory of 1748	1696	msiexec.exe	43
PID 1696 wrote to memory of 1748	1696	msiexec.exe	43
PID 1696 wrote to memory of 1748	1696	msiexec.exe	43
PID 1696 wrote to memory of 1748	1696	msiexec.exe	43
PID 1748 wrote to memory of 1548	1748	cmd.exe	45
PID 1748 wrote to memory of 1548	1748	cmd.exe	45
PID 1748 wrote to memory of 1548	1748	cmd.exe	45
PID 1748 wrote to memory of 1548	1748	cmd.exe	45

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce9d8545eb14f98f81526457b784ada2e37057dae2d74f625e47b4ed10549397.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:748
- 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:1056
- - 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:1696
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ipconfig /all
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2000
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig /all
        5⤵
        Modifies service
        Gathers network information
        
        PID:824
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c net config workstation
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1060
    - - C:\Windows\SysWOW64\net.exe
        
        net config workstation
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1456
      - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 config workstation
        6⤵
        
        PID:788
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c net view /all
      4⤵
      Suspicious use of WriteProcessMemory
      PID:992
    - - C:\Windows\SysWOW64\net.exe
        
        net view /all
        5⤵
        Discovers systems in the same network
        
        PID:1576
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c net view /all /domain
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1748
    - - C:\Windows\SysWOW64\net.exe
        
        net view /all /domain
        5⤵
        Discovers systems in the same network
        
        PID:1548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1420-5-0x000007FEF7B80000-0x000007FEF7DFA000-memory.dmp

Filesize
2.5MB

Download
memory/1696-3-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download
memory/1696-2-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/1696-1-0x0000000000090000-0x00000000000BC000-memory.dmp

Filesize
176KB

Download