masslogger | 5f53adb34adbcb6eeec29d48e9d80a401d1476eff2e826cb2c7ac02d8d7e2785

General

Target

SKM_C25820112116120.exe
Size

1.2MB
MD5

2559a4a701f88d7793082cea77f7a73c
SHA1

5548a12e53461128020f9feaefdeac7f797e2830
SHA256

5f53adb34adbcb6eeec29d48e9d80a401d1476eff2e826cb2c7ac02d8d7e2785
SHA512

a929420bb0bb9fc22262dbec8145a3c451e241a096c18eb3bd3e78c7766e5b021fcc9462477ea58866f4b329d65a2f2e3ec738fbf64d4dadd201cb3eab428ca2

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 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3796-1-0x0000000000400000-0x0000000000496000-memory.dmp	family_masslogger
behavioral2/memory/3796-2-0x000000000040188B-mapping.dmp	family_masslogger
behavioral2/memory/3796-3-0x0000000000400000-0x0000000000496000-memory.dmp	family_masslogger
behavioral2/memory/3796-8-0x00000000050A0000-0x0000000005121000-memory.dmp	family_masslogger

Deletes itself 1 IoCs

Processes:

powershell.exe

pid process

1172 powershell.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

SKM_C25820112116120.exe

description pid process target process

PID 3160 set thread context of 3796 3160 SKM_C25820112116120.exe SKM_C25820112116120.exe
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

1512 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

SKM_C25820112116120.exepowershell.exe

pid process

3796 SKM_C25820112116120.exe
3796 SKM_C25820112116120.exe
1172 powershell.exe
1172 powershell.exe
1172 powershell.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

SKM_C25820112116120.exe

pid process

3160 SKM_C25820112116120.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SKM_C25820112116120.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3796 SKM_C25820112116120.exe
Token: SeDebugPrivilege 1172 powershell.exe

pid	process
1172	powershell.exe

description	pid	process	target process
PID 3160 set thread context of 3796	3160	SKM_C25820112116120.exe	SKM_C25820112116120.exe

pid	process
1512	schtasks.exe

pid	process
3796	SKM_C25820112116120.exe
3796	SKM_C25820112116120.exe
1172	powershell.exe
1172	powershell.exe
1172	powershell.exe

pid	process
3160	SKM_C25820112116120.exe

description	pid	process
Token: SeDebugPrivilege	3796	SKM_C25820112116120.exe
Token: SeDebugPrivilege	1172	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

SKM_C25820112116120.execmd.exeSKM_C25820112116120.exe

description	pid	process	target process
PID 3160 wrote to memory of 3060	3160	SKM_C25820112116120.exe	cmd.exe
PID 3160 wrote to memory of 3060	3160	SKM_C25820112116120.exe	cmd.exe
PID 3160 wrote to memory of 3060	3160	SKM_C25820112116120.exe	cmd.exe
PID 3160 wrote to memory of 3796	3160	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 3160 wrote to memory of 3796	3160	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 3160 wrote to memory of 3796	3160	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 3160 wrote to memory of 3796	3160	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 3060 wrote to memory of 1512	3060	cmd.exe	schtasks.exe
PID 3060 wrote to memory of 1512	3060	cmd.exe	schtasks.exe
PID 3060 wrote to memory of 1512	3060	cmd.exe	schtasks.exe
PID 3796 wrote to memory of 1172	3796	SKM_C25820112116120.exe	powershell.exe
PID 3796 wrote to memory of 1172	3796	SKM_C25820112116120.exe	powershell.exe
PID 3796 wrote to memory of 1172	3796	SKM_C25820112116120.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe
"C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3160

C:\Windows\SysWOW64\cmd.exe
cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\3bc9d0e4991c4127854c846f1c363314.xml"
2⤵
- Suspicious use of WriteProcessMemory
PID:3060

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\3bc9d0e4991c4127854c846f1c363314.xml"
3⤵
- Creates scheduled task(s)
PID:1512

C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe
"C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3796

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe'
3⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1172

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\3bc9d0e4991c4127854c846f1c363314.xml
MD5
aa2f6636e997aaa0b01fbc78b1dabe52

SHA1
fd462100fc91975dcbea8e361cf1eb8a70f6ad54

SHA256
d710b6eda22285684579d8b547e5be2f48883c4bf8db39993b00df30f9dc8723

SHA512
6540a3bbdbd3ab51679d5b32380e6c288bf6eba2777d067d40bfe65642ccafecd18028b102dfa46ac189d84282da2b6cb202a4f307587c5639f86834788f5104

Download Submit
memory/1172-14-0x0000000073450000-0x0000000073B3E000-memory.dmp

Filesize
6.9MB

Download
memory/1172-20-0x0000000007560000-0x0000000007561000-memory.dmp

Filesize
4KB

Download
memory/1172-13-0x0000000000000000-mapping.dmp

Download
memory/1172-26-0x0000000008D20000-0x0000000008D21000-memory.dmp

Filesize
4KB

Download
memory/1172-24-0x00000000093A0000-0x00000000093A1000-memory.dmp

Filesize
4KB

Download
memory/1172-23-0x0000000007C80000-0x0000000007C81000-memory.dmp

Filesize
4KB

Download
memory/1172-22-0x00000000079B0000-0x00000000079B1000-memory.dmp

Filesize
4KB

Download
memory/1172-21-0x0000000006DE0000-0x0000000006DE1000-memory.dmp

Filesize
4KB

Download
memory/1172-18-0x0000000007480000-0x0000000007481000-memory.dmp

Filesize
4KB

Download
memory/1172-15-0x0000000001020000-0x0000000001021000-memory.dmp

Filesize
4KB

Download
memory/1172-27-0x0000000001340000-0x0000000001341000-memory.dmp

Filesize
4KB

Download
memory/1172-25-0x0000000008940000-0x0000000008941000-memory.dmp

Filesize
4KB

Download
memory/1172-17-0x0000000006B90000-0x0000000006B91000-memory.dmp

Filesize
4KB

Download
memory/1172-16-0x0000000006E50000-0x0000000006E51000-memory.dmp

Filesize
4KB

Download
memory/1512-6-0x0000000000000000-mapping.dmp

Download
memory/3060-0-0x0000000000000000-mapping.dmp

Download
memory/3796-12-0x00000000057B0000-0x00000000057B1000-memory.dmp

Filesize
4KB

Download
memory/3796-11-0x0000000005CB0000-0x0000000005CB1000-memory.dmp

Filesize
4KB

Download
memory/3796-2-0x000000000040188B-mapping.dmp

Download
memory/3796-10-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/3796-8-0x00000000050A0000-0x0000000005121000-memory.dmp

Filesize
516KB

Download
memory/3796-1-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/3796-5-0x0000000073230000-0x000000007391E000-memory.dmp

Filesize
6.9MB

Download
memory/3796-3-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads