masslogger | 64c665b2dbdaca4a20aaef96d625091757008c88b49d71070e4eefcd45d986d8

Resubmissions

10-05-2024 17:13

240510-vrrk4sgd7t 10

10-05-2024 17:09

240510-vphv7abd29 10

Analysis

max time kernel
137s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10-05-2024 17:09

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General

Target

mouse_2.exe
Size

984KB
MD5

af8ab92992ccc4cc6a637953836edf93
SHA1

ac17c77cae31fdfeb618b0083285ba869baf29fc
SHA256

03968a3a5a7a880feefca31686fcfbed445080a0c06eda2b6d623757179b782c
SHA512

9dc3bdfe45f9333d62ef3b0aaf3860a9ef1e94ced02ed0437d3ac2f96b3b9aacf6e621703f13d62f356bd50dec84cc3a3dc787a8a14c9ce0ceeed9ff63c45ad2
SSDEEP

24576:iNg+tKkEYA7Gmvv/HGsvPw9vz/DrELE7VUH:0g4K7YA7vvRMbcLa

Score

10^/10

masslogger zgrat collection rat rezer0 spyware stealer

Malware Config

Signatures

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral16/memory/316-15-0x0000000000400000-0x00000000004A8000-memory.dmp	family_zgrat_v1

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
behavioral16/memory/316-15-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

resource	yara_rule
behavioral16/memory/1328-11-0x0000000005E30000-0x0000000005EDE000-memory.dmp	rezer0

Checks computer location settings 2 TTPs 2 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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	mouse_2.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	mouse_2.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	mouse_2.exe
Key opened	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key opened	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key opened	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	mouse_2.exe

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
59	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1328 set thread context of 316	1328	mouse_2.exe	101

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

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/Job

T1053

pid	Process
3380	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
316	mouse_2.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1328	mouse_2.exe
1328	mouse_2.exe
1328	mouse_2.exe
1328	mouse_2.exe
1328	mouse_2.exe
316	mouse_2.exe
316	mouse_2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1328	mouse_2.exe
Token: SeDebugPrivilege	316	mouse_2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
316	mouse_2.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1328 wrote to memory of 3380	1328	mouse_2.exe	98
PID 1328 wrote to memory of 3380	1328	mouse_2.exe	98
PID 1328 wrote to memory of 3380	1328	mouse_2.exe	98
PID 1328 wrote to memory of 3584	1328	mouse_2.exe	100
PID 1328 wrote to memory of 3584	1328	mouse_2.exe	100
PID 1328 wrote to memory of 3584	1328	mouse_2.exe	100
PID 1328 wrote to memory of 316	1328	mouse_2.exe	101
PID 1328 wrote to memory of 316	1328	mouse_2.exe	101
PID 1328 wrote to memory of 316	1328	mouse_2.exe	101
PID 1328 wrote to memory of 316	1328	mouse_2.exe	101
PID 1328 wrote to memory of 316	1328	mouse_2.exe	101
PID 1328 wrote to memory of 316	1328	mouse_2.exe	101
PID 1328 wrote to memory of 316	1328	mouse_2.exe	101
PID 1328 wrote to memory of 316	1328	mouse_2.exe	101

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe

C:\Users\Admin\AppData\Local\Temp\mouse_2.exe
"C:\Users\Admin\AppData\Local\Temp\mouse_2.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aqkfZm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp850A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3380
- C:\Users\Admin\AppData\Local\Temp\mouse_2.exe
  "{path}"
  2⤵
  PID:3584
- C:\Users\Admin\AppData\Local\Temp\mouse_2.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\mouse_2.exe.log

Filesize
1KB

MD5
400f1cc1a0a0ce1cdabda365ab3368ce

SHA1
1ecf683f14271d84f3b6063493dce00ff5f42075

SHA256
c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

SHA512
14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp850A.tmp

Filesize
1KB

MD5
a778d0d30e849e159aefd86aefe34894

SHA1
92f080363ebd56429c62aec0d49351aa46bc0e1c

SHA256
8a61a6df863b1c5be5bf3faf72e9636ec6c58ceb7c0512aa0b8b12fa688b11d1

SHA512
588ae5f990195e4e2d9052b840087cfc81558f8bd44edec024a87bd50d4a3fd916970752d90eb4d4928f1110ac5cd9c45acff4f9b7c302fc50f360d45bac24a2

Download Submit
memory/316-21-0x00000000052E0000-0x0000000005324000-memory.dmp

Filesize
272KB

Download
memory/316-46-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/316-15-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/316-35-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/316-34-0x0000000007F10000-0x0000000007F60000-memory.dmp

Filesize
320KB

Download
memory/316-23-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/316-22-0x0000000005570000-0x00000000055D6000-memory.dmp

Filesize
408KB

Download
memory/316-20-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/316-18-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1328-4-0x000000000A770000-0x000000000A802000-memory.dmp

Filesize
584KB

Download
memory/1328-11-0x0000000005E30000-0x0000000005EDE000-memory.dmp

Filesize
696KB

Download
memory/1328-3-0x000000000AB40000-0x000000000B0E4000-memory.dmp

Filesize
5.6MB

Download
memory/1328-10-0x0000000005C10000-0x0000000005CAC000-memory.dmp

Filesize
624KB

Download
memory/1328-1-0x00000000003D0000-0x00000000004CC000-memory.dmp

Filesize
1008KB

Download
memory/1328-19-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1328-9-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1328-0-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/1328-8-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/1328-7-0x0000000005C00000-0x0000000005C08000-memory.dmp

Filesize
32KB

Download
memory/1328-6-0x0000000005170000-0x000000000517A000-memory.dmp

Filesize
40KB

Download
memory/1328-5-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1328-2-0x0000000004E20000-0x0000000004EE0000-memory.dmp

Filesize
768KB

Download