masslogger | 72ceeee6538d869e032d33c4cac0b1e51f34b9e32bf1e17f475b5609ddfe0bf8

General

Target
order9321t.exe
Size 940KB
Sample200828-9ehj23dxtj
SHA256 72ceeee6538d869e032d33c4cac0b1e51f34b9e32bf1e17f475b5609ddfe0bf8
MD5 397c5bbcc75db8567548322417aa05fd
SHA1 d65b345c5863550cb7c454eedf2de0e16fbd391e
SHA512 85d71264d951cc6d921b3ae29e716d3e21566daca5bd315d46a9778313573677e5e1feb6339e92c41c2b3256544ec6dc66e49ec7f0ecf9f245500599b74b233b
MD5 SHA1 SHA512

Score

10^/10

spyware stealer masslogger evasion

Malware Config

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 4 IoCs

resource	yara_rule
behavioral1/memory/988-8-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/988-9-0x000000000048195E-mapping.dmp	family_masslogger
behavioral1/memory/988-10-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/988-11-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	order9321t.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	order9321t.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Control Panel\International\Geo\Nation	order9321t.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

Looks up external IP address via web service 1 IoCs

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

flow	ioc
5	api.ipify.org

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	order9321t.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	order9321t.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 900 set thread context of 988	900	order9321t.exe	32

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2024	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
988	order9321t.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
900	order9321t.exe
900	order9321t.exe
900	order9321t.exe
900	order9321t.exe
900	order9321t.exe
988	order9321t.exe
988	order9321t.exe
988	order9321t.exe
988	order9321t.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	900	order9321t.exe
Token: SeDebugPrivilege	988	order9321t.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
988	order9321t.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 2024	900	order9321t.exe	29
PID 900 wrote to memory of 2024	900	order9321t.exe	29
PID 900 wrote to memory of 2024	900	order9321t.exe	29
PID 900 wrote to memory of 2024	900	order9321t.exe	29
PID 900 wrote to memory of 1888	900	order9321t.exe	31
PID 900 wrote to memory of 1888	900	order9321t.exe	31
PID 900 wrote to memory of 1888	900	order9321t.exe	31
PID 900 wrote to memory of 1888	900	order9321t.exe	31
PID 900 wrote to memory of 988	900	order9321t.exe	32
PID 900 wrote to memory of 988	900	order9321t.exe	32
PID 900 wrote to memory of 988	900	order9321t.exe	32
PID 900 wrote to memory of 988	900	order9321t.exe	32
PID 900 wrote to memory of 988	900	order9321t.exe	32
PID 900 wrote to memory of 988	900	order9321t.exe	32
PID 900 wrote to memory of 988	900	order9321t.exe	32
PID 900 wrote to memory of 988	900	order9321t.exe	32
PID 900 wrote to memory of 988	900	order9321t.exe	32

C:\Users\Admin\AppData\Local\Temp\order9321t.exe
"C:\Users\Admin\AppData\Local\Temp\order9321t.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YdvIruZxoLuL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC3BC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2024
- C:\Users\Admin\AppData\Local\Temp\order9321t.exe
  "{path}"
  2⤵
  PID:1888
- C:\Users\Admin\AppData\Local\Temp\order9321t.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:988