masslogger | 20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a

General

Target

20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
Size

864KB
MD5

dba45b78198d8bc0d5baddecc15e58a0
SHA1

51324f74e8bb21ac03fe082bf03de3eaaa83503d
SHA256

20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a
SHA512

9f14b263ec835db48dfdd278d61ad07b1e075075fa9e5fe23d26d61c08f7b061dcf6efc9d8c9591ce0fa43f48a71247d5a73ed2fb6ba48d00556e12ab1ca0c03

Score

10^/10

masslogger evasion spyware stealer

Malware Config

Signatures

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

MassLogger Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2032-138-0x0000000000400000-0x0000000000486000-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

Processes:

20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe

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

Processes:

20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe

description	pid	process	target process
PID 1140 set thread context of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exepowershell.exe

pid	process
2032	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
2032	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
432	powershell.exe
432	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2032	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
Token: SeDebugPrivilege	432	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe

description	pid	process	target process
PID 1140 wrote to memory of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
PID 1140 wrote to memory of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
PID 1140 wrote to memory of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
PID 1140 wrote to memory of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
PID 1140 wrote to memory of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
PID 1140 wrote to memory of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
PID 1140 wrote to memory of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
PID 1140 wrote to memory of 2032	1140	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
PID 2032 wrote to memory of 432	2032	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	powershell.exe
PID 2032 wrote to memory of 432	2032	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	powershell.exe
PID 2032 wrote to memory of 432	2032	20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
"C:\Users\Admin\AppData\Local\Temp\20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1140
- C:\Users\Admin\AppData\Local\Temp\20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\20a4e9a7d6416e639eea0b2b5bb70e005406be250f6b2aa4a38b5deedad29f6a.exe.log

Filesize
1KB

MD5
ddde88120da5a6e61cf1c0d1fc3f5c99

SHA1
aef94de11f90c3e6a99478c03d24aa355a6d0e52

SHA256
353067996dbacb8d3ae38dcc754d06b92e34b8511ebe2fda8c2358bbf6b79924

SHA512
64994ad92b4751bf3d580ec683e9387d9f05fe44bcb80c343470e992ac793f94f4811ab7c4f2e7240d40d5fe49df8191b781ef994a7c30df1f80940c7b06e8bd

Download Submit
memory/432-145-0x0000000006620000-0x000000000663E000-memory.dmp

Filesize
120KB

Download
memory/432-144-0x0000000005F30000-0x0000000005F96000-memory.dmp

Filesize
408KB

Download
memory/432-150-0x0000000006B40000-0x0000000006B62000-memory.dmp

Filesize
136KB

Download
memory/432-140-0x0000000000000000-mapping.dmp

Download
memory/432-147-0x0000000007C60000-0x00000000082DA000-memory.dmp

Filesize
6.5MB

Download
memory/432-146-0x00000000051C5000-0x00000000051C7000-memory.dmp

Filesize
8KB

Download
memory/432-143-0x00000000056D0000-0x00000000056F2000-memory.dmp

Filesize
136KB

Download
memory/432-141-0x0000000002D00000-0x0000000002D36000-memory.dmp

Filesize
216KB

Download
memory/432-149-0x0000000007880000-0x0000000007916000-memory.dmp

Filesize
600KB

Download
memory/432-148-0x0000000006AC0000-0x0000000006ADA000-memory.dmp

Filesize
104KB

Download
memory/432-142-0x0000000005800000-0x0000000005E28000-memory.dmp

Filesize
6.2MB

Download
memory/1140-132-0x00000000052A0000-0x0000000005332000-memory.dmp

Filesize
584KB

Download
memory/1140-130-0x00000000007E0000-0x00000000008BE000-memory.dmp

Filesize
888KB

Download
memory/1140-136-0x0000000009770000-0x00000000097D6000-memory.dmp

Filesize
408KB

Download
memory/1140-135-0x00000000095D0000-0x000000000966C000-memory.dmp

Filesize
624KB

Download
memory/1140-134-0x0000000009000000-0x000000000952C000-memory.dmp

Filesize
5.2MB

Download
memory/1140-133-0x0000000005270000-0x000000000527A000-memory.dmp

Filesize
40KB

Download
memory/1140-131-0x0000000005850000-0x0000000005DF4000-memory.dmp

Filesize
5.6MB

Download
memory/2032-138-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2032-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads