2ddbf5aed765723b948699526bc2a9a49864dc1181e21f4c51fe613aa8d0ca7e

Analysis

max time kernel
117s
max time network
120s
platform
windows10_x64
resource
win10
submitted
06/10/2020, 16:31

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General

Target
n.exe
Size 742KB
Sample201006-lscf4f6z76
SHA256 2ddbf5aed765723b948699526bc2a9a49864dc1181e21f4c51fe613aa8d0ca7e
MD5 8591aebf444c4644bbc2aa050876167b
SHA1 8a3dea1e2fcdde1609c6a16a1b90a7db3cdb50ab
SHA512 85023de8579d34fe027fceb349444e929c9d48e9ed196b528b68dcb63b27e192c296c9e7dea44a79a4773034e2dafc7268104632b114d5b8bedd5fa904cf6c12
MD5 SHA1 SHA512

Score

10^/10

evasion trojan spyware persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\n.exe\""	n.exe

Turns off Windows Defender SpyNet reporting 2 TTPs
evasion

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Executes dropped EXE 2 IoCs

pid	Process
1828	AdvancedRun.exe
1652	AdvancedRun.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\n.exe	n.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\n.exe	n.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Windows security modification 2 TTPs 11 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\n.exe = "0"	n.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	n.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	n.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	n.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	n.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	n.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	n.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\n.exe = "0"	n.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	n.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	n.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	n.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\n.exe"	n.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\n.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\n.exe"	n.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	api.ipify.org
15	api.ipify.org

Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs

pid	Process
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe
344	n.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 344 set thread context of 4332	344	n.exe	89

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4540	344	WerFault.exe	66

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3352	timeout.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2416	powershell.exe
1744	powershell.exe
2708	powershell.exe
3788	powershell.exe
1828	AdvancedRun.exe
1828	AdvancedRun.exe
1828	AdvancedRun.exe
1828	AdvancedRun.exe
1744	powershell.exe
3788	powershell.exe
2708	powershell.exe
1652	AdvancedRun.exe
1652	AdvancedRun.exe
1652	AdvancedRun.exe
1652	AdvancedRun.exe
2416	powershell.exe
1744	powershell.exe
2416	powershell.exe
3788	powershell.exe
2708	powershell.exe
344	n.exe
344	n.exe
344	n.exe
4332	n.exe
4332	n.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	344	n.exe
Token: SeDebugPrivilege	2708	powershell.exe
Token: SeDebugPrivilege	2416	powershell.exe
Token: SeDebugPrivilege	1744	powershell.exe
Token: SeDebugPrivilege	3788	powershell.exe
Token: SeDebugPrivilege	1828	AdvancedRun.exe
Token: SeImpersonatePrivilege	1828	AdvancedRun.exe
Token: SeDebugPrivilege	1652	AdvancedRun.exe
Token: SeImpersonatePrivilege	1652	AdvancedRun.exe
Token: SeDebugPrivilege	4332	n.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4332	n.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 344 wrote to memory of 3352	344	n.exe	73
PID 344 wrote to memory of 3352	344	n.exe	73
PID 344 wrote to memory of 3352	344	n.exe	73
PID 344 wrote to memory of 1744	344	n.exe	78
PID 344 wrote to memory of 1744	344	n.exe	78
PID 344 wrote to memory of 1744	344	n.exe	78
PID 344 wrote to memory of 2416	344	n.exe	80
PID 344 wrote to memory of 2416	344	n.exe	80
PID 344 wrote to memory of 2416	344	n.exe	80
PID 344 wrote to memory of 2708	344	n.exe	82
PID 344 wrote to memory of 2708	344	n.exe	82
PID 344 wrote to memory of 2708	344	n.exe	82
PID 344 wrote to memory of 3788	344	n.exe	84
PID 344 wrote to memory of 3788	344	n.exe	84
PID 344 wrote to memory of 3788	344	n.exe	84
PID 344 wrote to memory of 1828	344	n.exe	86
PID 344 wrote to memory of 1828	344	n.exe	86
PID 344 wrote to memory of 1828	344	n.exe	86
PID 1828 wrote to memory of 1652	1828	AdvancedRun.exe	87
PID 1828 wrote to memory of 1652	1828	AdvancedRun.exe	87
PID 1828 wrote to memory of 1652	1828	AdvancedRun.exe	87
PID 344 wrote to memory of 4332	344	n.exe	89
PID 344 wrote to memory of 4332	344	n.exe	89
PID 344 wrote to memory of 4332	344	n.exe	89
PID 344 wrote to memory of 4332	344	n.exe	89
PID 344 wrote to memory of 4332	344	n.exe	89
PID 344 wrote to memory of 4332	344	n.exe	89
PID 344 wrote to memory of 4332	344	n.exe	89
PID 344 wrote to memory of 4332	344	n.exe	89

C:\Users\Admin\AppData\Local\Temp\n.exe
"C:\Users\Admin\AppData\Local\Temp\n.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Windows security modification
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:344
- C:\Windows\SysWOW64\timeout.exe
  timeout 4
  2⤵
  - Delays execution with timeout.exe
  PID:3352
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\n.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1744
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\n.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2416
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\n.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2708
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\n.exe" -Force
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3788
- C:\Users\Admin\AppData\Local\Temp\f967bd25-a56a-44ef-9ede-985cd321c723\AdvancedRun.exe
  "C:\Users\Admin\AppData\Local\Temp\f967bd25-a56a-44ef-9ede-985cd321c723\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\f967bd25-a56a-44ef-9ede-985cd321c723\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1828
- - C:\Users\Admin\AppData\Local\Temp\f967bd25-a56a-44ef-9ede-985cd321c723\AdvancedRun.exe
    "C:\Users\Admin\AppData\Local\Temp\f967bd25-a56a-44ef-9ede-985cd321c723\AdvancedRun.exe" /SpecialRun 4101d8 1828
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1652
- C:\Users\Admin\AppData\Local\Temp\n.exe
  "C:\Users\Admin\AppData\Local\Temp\n.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4332
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 344 -s 2328
  2⤵
  - Program crash
  PID:4540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Web Service

T1102

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

memory/344-5-0x0000000005610000-0x000000000565A000-memory.dmp

Download

memory/344-6-0x00000000066F0000-0x00000000066F1000-memory.dmp

Download

memory/344-3-0x00000000056B0000-0x00000000056B1000-memory.dmp

Download

memory/344-1-0x0000000000D90000-0x0000000000D91000-memory.dmp

Download

memory/344-0-0x0000000073710000-0x0000000073DFE000-memory.dmp

Download

memory/1744-11-0x0000000073710000-0x0000000073DFE000-memory.dmp

Download

memory/1744-46-0x0000000008740000-0x0000000008741000-memory.dmp

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memory/1744-44-0x0000000008720000-0x0000000008721000-memory.dmp

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memory/1744-52-0x0000000008A60000-0x0000000008A61000-memory.dmp

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memory/1744-26-0x0000000008090000-0x0000000008091000-memory.dmp

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memory/1744-29-0x0000000008200000-0x0000000008201000-memory.dmp

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memory/1744-34-0x0000000008350000-0x0000000008351000-memory.dmp

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memory/1744-13-0x0000000007280000-0x0000000007281000-memory.dmp

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memory/2416-12-0x0000000073710000-0x0000000073DFE000-memory.dmp

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memory/2416-23-0x0000000006D60000-0x0000000006D61000-memory.dmp

Download

memory/2416-16-0x0000000006DA0000-0x0000000006DA1000-memory.dmp

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memory/2708-14-0x0000000073710000-0x0000000073DFE000-memory.dmp

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memory/3788-103-0x0000000009960000-0x0000000009961000-memory.dmp

Download

memory/3788-58-0x0000000009400000-0x0000000009433000-memory.dmp

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memory/3788-88-0x00000000088D0000-0x00000000088D1000-memory.dmp

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memory/3788-92-0x0000000009530000-0x0000000009531000-memory.dmp

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memory/3788-18-0x0000000073710000-0x0000000073DFE000-memory.dmp

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memory/3788-108-0x00000000098C0000-0x00000000098C1000-memory.dmp

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memory/3788-116-0x00000000096B0000-0x00000000096B1000-memory.dmp

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memory/4332-72-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/4332-83-0x0000000073710000-0x0000000073DFE000-memory.dmp

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memory/4332-128-0x0000000005700000-0x0000000005701000-memory.dmp

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memory/4332-130-0x00000000062D0000-0x00000000062D1000-memory.dmp

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memory/4332-131-0x0000000006280000-0x0000000006281000-memory.dmp

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memory/4540-107-0x0000000004D80000-0x0000000004D81000-memory.dmp

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