masslogger | fa655773a5d44061edbaeedb2b3e31597bcefe870c47fdefdb39ea0bb072d31d

Analysis

max time kernel
61s
max time network
116s
platform
windows7_x64
resource
win7v200722
submitted
16/10/2020, 08:33

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General

Target
T6M.exe
Size 1.4MB
Sample201016-evc19gmatj
SHA256 fa655773a5d44061edbaeedb2b3e31597bcefe870c47fdefdb39ea0bb072d31d
MD5 b8b567e9a642a1d6804cacc7a0c209ff
SHA1 ec04f4ab843378cf6e82dcbcce1060bb599ab7c5
SHA512 cb2f93e1e4ae99be1ba2e0251d3b311cce79248e316908b76bb2477fc364f1370eb539b6e47922da573da8f3b2dd5530727b3ad422c258cbfd9b4fc5173366d7
MD5 SHA1 SHA512

Score

10^/10

spyware stealer masslogger

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/1060-6-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1060-7-0x000000000048169E-mapping.dmp	family_masslogger
behavioral1/memory/1060-8-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1060-9-0x0000000000400000-0x0000000000486000-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-1-5-21-2090973689-680783404-4292415065-1000\Control Panel\International\Geo\Nation	T6M.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1516 set thread context of 1060	1516	T6M.exe	30

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1060	T6M.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1060	T6M.exe
1060	T6M.exe
1560	Powershell.exe
1560	Powershell.exe
1060	T6M.exe
1060	T6M.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1516	T6M.exe
Token: SeDebugPrivilege	1060	T6M.exe
Token: SeDebugPrivilege	1560	Powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1060	T6M.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 1560	1516	T6M.exe	28
PID 1516 wrote to memory of 1560	1516	T6M.exe	28
PID 1516 wrote to memory of 1560	1516	T6M.exe	28
PID 1516 wrote to memory of 1560	1516	T6M.exe	28
PID 1516 wrote to memory of 1060	1516	T6M.exe	30
PID 1516 wrote to memory of 1060	1516	T6M.exe	30
PID 1516 wrote to memory of 1060	1516	T6M.exe	30
PID 1516 wrote to memory of 1060	1516	T6M.exe	30
PID 1516 wrote to memory of 1060	1516	T6M.exe	30
PID 1516 wrote to memory of 1060	1516	T6M.exe	30
PID 1516 wrote to memory of 1060	1516	T6M.exe	30
PID 1516 wrote to memory of 1060	1516	T6M.exe	30
PID 1516 wrote to memory of 1060	1516	T6M.exe	30

C:\Users\Admin\AppData\Local\Temp\T6M.exe
"C:\Users\Admin\AppData\Local\Temp\T6M.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\VideoLAN\vlc.exe"'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1560
- C:\Users\Admin\AppData\Local\Temp\T6M.exe
  "C:\Users\Admin\AppData\Local\Temp\T6M.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1060-10-0x0000000074820000-0x0000000074F0E000-memory.dmp

Download

memory/1060-6-0x0000000000400000-0x0000000000486000-memory.dmp

Download

memory/1060-8-0x0000000000400000-0x0000000000486000-memory.dmp

Download

memory/1060-9-0x0000000000400000-0x0000000000486000-memory.dmp

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memory/1516-1-0x0000000000040000-0x0000000000041000-memory.dmp

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memory/1516-3-0x00000000020C0000-0x000000000212E000-memory.dmp

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memory/1516-0-0x0000000074820000-0x0000000074F0E000-memory.dmp

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memory/1516-5-0x0000000000530000-0x000000000053D000-memory.dmp

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memory/1560-13-0x0000000074820000-0x0000000074F0E000-memory.dmp

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memory/1560-14-0x0000000000630000-0x0000000000631000-memory.dmp

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memory/1560-15-0x0000000004760000-0x0000000004761000-memory.dmp

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memory/1560-16-0x0000000002580000-0x0000000002581000-memory.dmp

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memory/1560-17-0x0000000005240000-0x0000000005241000-memory.dmp

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memory/1560-20-0x0000000005650000-0x0000000005651000-memory.dmp

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memory/1560-25-0x00000000056F0000-0x00000000056F1000-memory.dmp

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memory/1560-26-0x0000000005790000-0x0000000005791000-memory.dmp

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memory/1560-33-0x0000000006280000-0x0000000006281000-memory.dmp

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memory/1560-34-0x0000000005610000-0x0000000005611000-memory.dmp

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memory/1560-48-0x0000000006300000-0x0000000006301000-memory.dmp

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memory/1560-49-0x0000000006310000-0x0000000006311000-memory.dmp

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