masslogger | 8a30191071b228039a217301f4f3431924d492d01ec49302fa30e5ab9388b81d

General

Target

PO 202108 FOR JANUARY 2021.exe
Size

1.5MB
MD5

d6fedf690e4ea4ba0918f9deddeb9b7a
SHA1

abb8d5664b096b6caa92993ffb75c3460f6cc7a0
SHA256

828a9fae03e6a20158c58a659f27371fbe9a836199a3327fe5ef457115cf0206
SHA512

5b3c0d624c76a5badb81c4fcb23137cee89736d4212016337a63f953a85ba033970e9f540cb63cf12bd876e0dfcfbed6a3a5817a734e8f53863d87baf0dec0cc

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

Processes:

resource	yara_rule
behavioral2/memory/4656-138-0x0000000000400000-0x00000000004B8000-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

Processes:

PO 202108 FOR JANUARY 2021.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	PO 202108 FOR JANUARY 2021.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO 202108 FOR JANUARY 2021.exe

description pid process target process

PID 4128 set thread context of 4656 4128 PO 202108 FOR JANUARY 2021.exe PO 202108 FOR JANUARY 2021.exe
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

Processes:

schtasks.exe

pid process

4860 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

PO 202108 FOR JANUARY 2021.exePO 202108 FOR JANUARY 2021.exepowershell.exe

pid process

4128 PO 202108 FOR JANUARY 2021.exe
4656 PO 202108 FOR JANUARY 2021.exe
4656 PO 202108 FOR JANUARY 2021.exe
2152 powershell.exe
2152 powershell.exe

description	pid	process	target process
PID 4128 set thread context of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe

pid	process
4860	schtasks.exe

pid	process
4128	PO 202108 FOR JANUARY 2021.exe
4656	PO 202108 FOR JANUARY 2021.exe
4656	PO 202108 FOR JANUARY 2021.exe
2152	powershell.exe
2152	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO 202108 FOR JANUARY 2021.exePO 202108 FOR JANUARY 2021.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4128	PO 202108 FOR JANUARY 2021.exe
Token: SeDebugPrivilege	4656	PO 202108 FOR JANUARY 2021.exe
Token: SeDebugPrivilege	2152	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

PO 202108 FOR JANUARY 2021.exePO 202108 FOR JANUARY 2021.execmd.exe

description	pid	process	target process
PID 4128 wrote to memory of 4860	4128	PO 202108 FOR JANUARY 2021.exe	schtasks.exe
PID 4128 wrote to memory of 4860	4128	PO 202108 FOR JANUARY 2021.exe	schtasks.exe
PID 4128 wrote to memory of 4860	4128	PO 202108 FOR JANUARY 2021.exe	schtasks.exe
PID 4128 wrote to memory of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe
PID 4128 wrote to memory of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe
PID 4128 wrote to memory of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe
PID 4128 wrote to memory of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe
PID 4128 wrote to memory of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe
PID 4128 wrote to memory of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe
PID 4128 wrote to memory of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe
PID 4128 wrote to memory of 4656	4128	PO 202108 FOR JANUARY 2021.exe	PO 202108 FOR JANUARY 2021.exe
PID 4656 wrote to memory of 5032	4656	PO 202108 FOR JANUARY 2021.exe	cmd.exe
PID 4656 wrote to memory of 5032	4656	PO 202108 FOR JANUARY 2021.exe	cmd.exe
PID 4656 wrote to memory of 5032	4656	PO 202108 FOR JANUARY 2021.exe	cmd.exe
PID 5032 wrote to memory of 2152	5032	cmd.exe	powershell.exe
PID 5032 wrote to memory of 2152	5032	cmd.exe	powershell.exe
PID 5032 wrote to memory of 2152	5032	cmd.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe
"C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4128

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NGgqNkUr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp582D.tmp"
2⤵
- Creates scheduled task(s)
PID:4860

C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe
"C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4656

C:\Windows\SysWOW64\cmd.exe
"cmd" /c start /b powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:5032

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\PO 202108 FOR JANUARY 2021.exe'
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2152

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO 202108 FOR JANUARY 2021.exe.log
Filesize
1KB

MD5
84e77a587d94307c0ac1357eb4d3d46f

SHA1
83cc900f9401f43d181207d64c5adba7a85edc1e

SHA256
e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

SHA512
aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp582D.tmp
Filesize
1KB

MD5
19939a59ff5ba62e7d2250e6bdb5d19f

SHA1
365369d84fec68d45e0a7e0b9a723adbc3e8373e

SHA256
482822cbef69409ffb76da1ea93ddd3aab706f29c297e7959d2bca979dab69fa

SHA512
a113fd18593d87b56709a0e182f8319d09257f70c6bcd2b338b1d27a59b459c7ddd92771f7966646cb331fe1f118f6f975cde5f122969142e9db069f202f1a51

Download Submit
memory/2152-142-0x0000000000000000-mapping.dmp

Download
memory/2152-147-0x0000000006030000-0x000000000604E000-memory.dmp

Filesize
120KB

Download
memory/2152-146-0x0000000005250000-0x00000000052B6000-memory.dmp

Filesize
408KB

Download
memory/2152-151-0x00000000065D0000-0x00000000065F2000-memory.dmp

Filesize
136KB

Download
memory/2152-145-0x00000000050B0000-0x00000000050D2000-memory.dmp

Filesize
136KB

Download
memory/2152-150-0x0000000007200000-0x0000000007296000-memory.dmp

Filesize
600KB

Download
memory/2152-149-0x0000000006500000-0x000000000651A000-memory.dmp

Filesize
104KB

Download
memory/2152-144-0x0000000005300000-0x0000000005928000-memory.dmp

Filesize
6.2MB

Download
memory/2152-143-0x0000000004C00000-0x0000000004C36000-memory.dmp

Filesize
216KB

Download
memory/2152-148-0x0000000007880000-0x0000000007EFA000-memory.dmp

Filesize
6.5MB

Download
memory/4128-132-0x0000000004CF0000-0x0000000004D82000-memory.dmp

Filesize
584KB

Download
memory/4128-130-0x0000000000180000-0x000000000030E000-memory.dmp

Filesize
1.6MB

Download
memory/4128-131-0x00000000051C0000-0x0000000005764000-memory.dmp

Filesize
5.6MB

Download
memory/4128-133-0x0000000004D90000-0x0000000004E2C000-memory.dmp

Filesize
624KB

Download
memory/4128-134-0x0000000004CB0000-0x0000000004CBA000-memory.dmp

Filesize
40KB

Download
memory/4656-140-0x0000000005270000-0x00000000052D6000-memory.dmp

Filesize
408KB

Download
memory/4656-138-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4656-137-0x0000000000000000-mapping.dmp

Download
memory/4860-135-0x0000000000000000-mapping.dmp

Download
memory/5032-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads