masslogger | ef3a705d92f5919949be18024d4ff6f88a4717b707bdf598fb0cac25dc7ab49c

Analysis

max time kernel
102s
max time network
182s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21/05/2022, 01:53

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General

Target
ZZW00008112020ZD1_DPILpdf.exe
Size 1002KB
Sample220521-cbfvkagfbm
SHA256 f1ce8a3c72d7e45300b38de923c0ad45c466ef17a44bec4aad85a4672690eb22
MD5 a556bc0ce0bcf11af90c5405f3aa9067
SHA1 c76eeca4dbff9834820c7c4373fd6ad230f7b5b6
SHA512 783e81cc6c8aa0c8734008e792963f066230648b77b5562ccd97069a9f2a54ac7d4137d93afc2f5b3763e32be07e67a23a1f039d656157360841fb4ae8ab985e
MD5 SHA1 SHA512

Score

10^/10

masslogger 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

resource	yara_rule
behavioral2/memory/3588-136-0x0000000000400000-0x00000000004B8000-memory.dmp	family_masslogger

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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	ZZW00008112020ZD1_DPILpdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2396 set thread context of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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
4452	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2396	ZZW00008112020ZD1_DPILpdf.exe
2396	ZZW00008112020ZD1_DPILpdf.exe
2396	ZZW00008112020ZD1_DPILpdf.exe
2396	ZZW00008112020ZD1_DPILpdf.exe
3588	ZZW00008112020ZD1_DPILpdf.exe
3588	ZZW00008112020ZD1_DPILpdf.exe
212	powershell.exe
212	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	ZZW00008112020ZD1_DPILpdf.exe
Token: SeDebugPrivilege	3588	ZZW00008112020ZD1_DPILpdf.exe
Token: SeDebugPrivilege	212	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 4452	2396	ZZW00008112020ZD1_DPILpdf.exe	85
PID 2396 wrote to memory of 4452	2396	ZZW00008112020ZD1_DPILpdf.exe	85
PID 2396 wrote to memory of 4452	2396	ZZW00008112020ZD1_DPILpdf.exe	85
PID 2396 wrote to memory of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87
PID 2396 wrote to memory of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87
PID 2396 wrote to memory of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87
PID 2396 wrote to memory of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87
PID 2396 wrote to memory of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87
PID 2396 wrote to memory of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87
PID 2396 wrote to memory of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87
PID 2396 wrote to memory of 3588	2396	ZZW00008112020ZD1_DPILpdf.exe	87
PID 3588 wrote to memory of 408	3588	ZZW00008112020ZD1_DPILpdf.exe	91
PID 3588 wrote to memory of 408	3588	ZZW00008112020ZD1_DPILpdf.exe	91
PID 3588 wrote to memory of 408	3588	ZZW00008112020ZD1_DPILpdf.exe	91
PID 408 wrote to memory of 212	408	cmd.exe	93
PID 408 wrote to memory of 212	408	cmd.exe	93
PID 408 wrote to memory of 212	408	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\ZZW00008112020ZD1_DPILpdf.exe
"C:\Users\Admin\AppData\Local\Temp\ZZW00008112020ZD1_DPILpdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IRPLvFRsiE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC331.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4452
- C:\Users\Admin\AppData\Local\Temp\ZZW00008112020ZD1_DPILpdf.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3588
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c start /b powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\ZZW00008112020ZD1_DPILpdf.exe' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:408
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\ZZW00008112020ZD1_DPILpdf.exe'
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:212

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

ZZW00008112020ZD1_DPILpdf.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ZZW00008112020ZD1_DPILpdf.exe.log
Size 412B
SHA256 e82d6ad0571bd9377d067f29c5c088cd8b5de2770dc240d69178a149488a6426
MD5 be13ac3b65841ec3eedbd017b51c53b0
SHA1 c07874d283990055034a448f0dffc005586b791e
SHA512 8a0bcd002790d0ab8a458c37499552825cdc5f7c5ae3b18f8dc0f0b1fc076a3cf768cffd10116df37181d6d690a15c031f40ae15f668883b3ac26072151bac47
MD5 SHA1 SHA512

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tmpC331.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpC331.tmp
Size 1KB
SHA256 643c642ece4482b136fc6c9e9b3218dbba700f2006f545e40e4f40e99a71a52b
MD5 e296019d415125fed261d887f3e94173
SHA1 fc2e3246eb08fb9bfb70eb0fc122863d9100baa7
SHA512 bb127fcb7e43366ed99912444414aa4ba9dc6761c95daae298150d79ef8bc56e7559c58ea110a5b7c29d38d9c260a36ed6026eabbe0d63b5e0e4faff8c700f8a
MD5 SHA1 SHA512

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memory/212-142-0x0000000002670000-0x00000000026A6000-memory.dmp

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memory/212-150-0x0000000006570000-0x0000000006592000-memory.dmp

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memory/212-149-0x0000000007230000-0x00000000072C6000-memory.dmp

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memory/212-148-0x00000000064A0000-0x00000000064BA000-memory.dmp

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memory/212-147-0x0000000007610000-0x0000000007C8A000-memory.dmp

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memory/212-146-0x0000000005FA0000-0x0000000005FBE000-memory.dmp

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memory/212-145-0x0000000005270000-0x00000000052D6000-memory.dmp

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memory/212-144-0x00000000051D0000-0x00000000051F2000-memory.dmp

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memory/212-143-0x00000000052F0000-0x0000000005918000-memory.dmp

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memory/2396-130-0x0000000000F30000-0x0000000001030000-memory.dmp

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memory/2396-132-0x000000000C2A0000-0x000000000C33C000-memory.dmp

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memory/2396-131-0x0000000005A80000-0x0000000005B12000-memory.dmp

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memory/3588-139-0x00000000056B0000-0x0000000005716000-memory.dmp

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memory/3588-138-0x0000000005A30000-0x0000000005FD4000-memory.dmp

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memory/3588-136-0x0000000000400000-0x00000000004B8000-memory.dmp

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