masslogger | e70ecdaf88aed4cda8550cb3a231b422856e32eba95e32ab55dbebad0884d660

General

Target

hesaphareketi000,pdf.exe
Size

1.4MB
MD5

3212098204ac1cdaf6124a4613a48b39
SHA1

cf2bd91ae275ea715c62f9485485c36180c4a497
SHA256

7760fb6e2ea4f75a5248d6f670aa32bd991a2dd77c7e7d6b95b53a67d3654d02
SHA512

202886701e3b6e96026a12ec8ffbd18e7b3a7ebbacc6823bd88c2fe18a27f3069f1e0bfd85fe306cab25306176be3f012008cb2af4a4686bb74846698bb57bc0

Score

10^/10

masslogger persistence 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/5012-130-0x0000000000170000-0x00000000002DC000-memory.dmp	family_masslogger
C:\Users\Admin\AppData\Roaming\app.exe	family_masslogger
C:\Users\Admin\AppData\Roaming\app.exe	family_masslogger
behavioral2/memory/4904-139-0x0000000000400000-0x00000000004B8000-memory.dmp	family_masslogger

Executes dropped EXE 2 IoCs

Processes:

app.exeRegAsm.exe

pid process

4840 app.exe
4904 RegAsm.exe

pid	process
4840	app.exe
4904	RegAsm.exe

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:

hesaphareketi000,pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	hesaphareketi000,pdf.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\app = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\app.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

app.exe

description pid process target process

PID 4840 set thread context of 4904 4840 app.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 4840 set thread context of 4904	4840	app.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

hesaphareketi000,pdf.exeapp.exeRegAsm.exepowershell.exe

pid	process
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
5012	hesaphareketi000,pdf.exe
4840	app.exe
4840	app.exe
4840	app.exe
4904	RegAsm.exe
4904	RegAsm.exe
3328	powershell.exe
3328	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

hesaphareketi000,pdf.exeapp.exeRegAsm.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	5012	hesaphareketi000,pdf.exe
Token: SeDebugPrivilege	4840	app.exe
Token: SeDebugPrivilege	4904	RegAsm.exe
Token: SeDebugPrivilege	3328	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

hesaphareketi000,pdf.execmd.exeapp.exeRegAsm.execmd.exe

description	pid	process	target process
PID 5012 wrote to memory of 2900	5012	hesaphareketi000,pdf.exe	cmd.exe
PID 5012 wrote to memory of 2900	5012	hesaphareketi000,pdf.exe	cmd.exe
PID 5012 wrote to memory of 2900	5012	hesaphareketi000,pdf.exe	cmd.exe
PID 2900 wrote to memory of 3044	2900	cmd.exe	reg.exe
PID 2900 wrote to memory of 3044	2900	cmd.exe	reg.exe
PID 2900 wrote to memory of 3044	2900	cmd.exe	reg.exe
PID 5012 wrote to memory of 4840	5012	hesaphareketi000,pdf.exe	app.exe
PID 5012 wrote to memory of 4840	5012	hesaphareketi000,pdf.exe	app.exe
PID 5012 wrote to memory of 4840	5012	hesaphareketi000,pdf.exe	app.exe
PID 4840 wrote to memory of 4904	4840	app.exe	RegAsm.exe
PID 4840 wrote to memory of 4904	4840	app.exe	RegAsm.exe
PID 4840 wrote to memory of 4904	4840	app.exe	RegAsm.exe
PID 4840 wrote to memory of 4904	4840	app.exe	RegAsm.exe
PID 4840 wrote to memory of 4904	4840	app.exe	RegAsm.exe
PID 4840 wrote to memory of 4904	4840	app.exe	RegAsm.exe
PID 4840 wrote to memory of 4904	4840	app.exe	RegAsm.exe
PID 4840 wrote to memory of 4904	4840	app.exe	RegAsm.exe
PID 4904 wrote to memory of 2056	4904	RegAsm.exe	cmd.exe
PID 4904 wrote to memory of 2056	4904	RegAsm.exe	cmd.exe
PID 4904 wrote to memory of 2056	4904	RegAsm.exe	cmd.exe
PID 2056 wrote to memory of 3328	2056	cmd.exe	powershell.exe
PID 2056 wrote to memory of 3328	2056	cmd.exe	powershell.exe
PID 2056 wrote to memory of 3328	2056	cmd.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\hesaphareketi000,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\hesaphareketi000,pdf.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v app /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\app.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v app /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\app.exe"
    3⤵
    - Adds Run key to start application
    PID:3044
- C:\Users\Admin\AppData\Roaming\app.exe
  "C:\Users\Admin\AppData\Roaming\app.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4840
- - C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
    "C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4904
  - - C:\Windows\SysWOW64\cmd.exe
      "cmd" /c start /b powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\RegAsm.exe' & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2056
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\RegAsm.exe'
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Roaming\app.exe

Filesize
1.4MB

MD5
3212098204ac1cdaf6124a4613a48b39

SHA1
cf2bd91ae275ea715c62f9485485c36180c4a497

SHA256
7760fb6e2ea4f75a5248d6f670aa32bd991a2dd77c7e7d6b95b53a67d3654d02

SHA512
202886701e3b6e96026a12ec8ffbd18e7b3a7ebbacc6823bd88c2fe18a27f3069f1e0bfd85fe306cab25306176be3f012008cb2af4a4686bb74846698bb57bc0

Download Submit
C:\Users\Admin\AppData\Roaming\app.exe

Filesize
1.4MB

MD5
3212098204ac1cdaf6124a4613a48b39

SHA1
cf2bd91ae275ea715c62f9485485c36180c4a497

SHA256
7760fb6e2ea4f75a5248d6f670aa32bd991a2dd77c7e7d6b95b53a67d3654d02

SHA512
202886701e3b6e96026a12ec8ffbd18e7b3a7ebbacc6823bd88c2fe18a27f3069f1e0bfd85fe306cab25306176be3f012008cb2af4a4686bb74846698bb57bc0

Download Submit
memory/2056-144-0x0000000000000000-mapping.dmp

Download
memory/2900-133-0x0000000000000000-mapping.dmp

Download
memory/3044-134-0x0000000000000000-mapping.dmp

Download
memory/3328-148-0x0000000004CA0000-0x0000000004CC2000-memory.dmp

Filesize
136KB

Download
memory/3328-150-0x0000000005B70000-0x0000000005B8E000-memory.dmp

Filesize
120KB

Download
memory/3328-154-0x0000000006130000-0x0000000006152000-memory.dmp

Filesize
136KB

Download
memory/3328-153-0x0000000006DE0000-0x0000000006E76000-memory.dmp

Filesize
600KB

Download
memory/3328-152-0x0000000006070000-0x000000000608A000-memory.dmp

Filesize
104KB

Download
memory/3328-151-0x00000000073C0000-0x0000000007A3A000-memory.dmp

Filesize
6.5MB

Download
memory/3328-149-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/3328-147-0x0000000004E80000-0x00000000054A8000-memory.dmp

Filesize
6.2MB

Download
memory/3328-145-0x0000000000000000-mapping.dmp

Download
memory/3328-146-0x0000000002230000-0x0000000002266000-memory.dmp

Filesize
216KB

Download
memory/4840-135-0x0000000000000000-mapping.dmp

Download
memory/4904-143-0x0000000005670000-0x00000000056D6000-memory.dmp

Filesize
408KB

Download
memory/4904-138-0x0000000000000000-mapping.dmp

Download
memory/4904-142-0x00000000054E0000-0x000000000557C000-memory.dmp

Filesize
624KB

Download
memory/4904-139-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/5012-131-0x0000000005920000-0x0000000005EC4000-memory.dmp

Filesize
5.6MB

Download
memory/5012-130-0x0000000000170000-0x00000000002DC000-memory.dmp

Filesize
1.4MB

Download
memory/5012-132-0x0000000005450000-0x00000000054E2000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads