masslogger | 7cfbde8e87809e872fa1dc3d178d4644cf19e921534c746c05ada8a7bc573d17

General

Target

Ziraat Bankasi Swift Messaji.exe
Size

1.3MB
MD5

7ba9c730b33fd37be0eec329aabeb6a0
SHA1

eabc80e887de547dc8dd16d4d0a515df48f30791
SHA256

30dac0d69e366db4ce57a0935d5619e4bcebfcbaa9f14b7618970cc2aaa522f4
SHA512

a8ac548c69d3698c87a18291577e6ddc3912c6009878382c3b1bc83cd3ad2b96f39cd60f797a60ae75bb992c413dc35a6f2a4fb844640a621cf88d75a93381fc

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 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1876-130-0x00000000007A0000-0x00000000008F0000-memory.dmp	family_masslogger
C:\Users\Admin\Desktop\.exe	family_masslogger
C:\Users\Admin\Desktop\.exe	family_masslogger

Executes dropped EXE 2 IoCs

Processes:

.exeRegAsm.exe

pid process

5036 .exe
3860 RegAsm.exe

pid	process
5036	.exe
3860	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:

Ziraat Bankasi Swift Messaji.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Ziraat Bankasi Swift Messaji.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
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\admin = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Desktop\\.exe"	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

.exe

description pid process target process

PID 5036 set thread context of 3860 5036 .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 5036 set thread context of 3860	5036	.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

Ziraat Bankasi Swift Messaji.exe.exe

pid	process
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
1876	Ziraat Bankasi Swift Messaji.exe
5036	.exe
5036	.exe
5036	.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Ziraat Bankasi Swift Messaji.exe.exe

description pid process

Token: SeDebugPrivilege 1876 Ziraat Bankasi Swift Messaji.exe
Token: SeDebugPrivilege 5036 .exe

description	pid	process
Token: SeDebugPrivilege	1876	Ziraat Bankasi Swift Messaji.exe
Token: SeDebugPrivilege	5036	.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Ziraat Bankasi Swift Messaji.execmd.exe.exe

description	pid	process	target process
PID 1876 wrote to memory of 1708	1876	Ziraat Bankasi Swift Messaji.exe	cmd.exe
PID 1876 wrote to memory of 1708	1876	Ziraat Bankasi Swift Messaji.exe	cmd.exe
PID 1876 wrote to memory of 1708	1876	Ziraat Bankasi Swift Messaji.exe	cmd.exe
PID 1708 wrote to memory of 1460	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1460	1708	cmd.exe	reg.exe
PID 1708 wrote to memory of 1460	1708	cmd.exe	reg.exe
PID 1876 wrote to memory of 5036	1876	Ziraat Bankasi Swift Messaji.exe	.exe
PID 1876 wrote to memory of 5036	1876	Ziraat Bankasi Swift Messaji.exe	.exe
PID 1876 wrote to memory of 5036	1876	Ziraat Bankasi Swift Messaji.exe	.exe
PID 5036 wrote to memory of 3860	5036	.exe	RegAsm.exe
PID 5036 wrote to memory of 3860	5036	.exe	RegAsm.exe
PID 5036 wrote to memory of 3860	5036	.exe	RegAsm.exe
PID 5036 wrote to memory of 3860	5036	.exe	RegAsm.exe
PID 5036 wrote to memory of 3860	5036	.exe	RegAsm.exe
PID 5036 wrote to memory of 3860	5036	.exe	RegAsm.exe
PID 5036 wrote to memory of 3860	5036	.exe	RegAsm.exe
PID 5036 wrote to memory of 3860	5036	.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Messaji.exe
"C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Messaji.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v admin /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v admin /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
3⤵
- Adds Run key to start application
PID:1460

C:\Users\Admin\Desktop\.exe
"C:\Users\Admin\Desktop\.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5036

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
3⤵
- Executes dropped EXE
PID:3860

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

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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\Desktop\.exe
Filesize
1.3MB

MD5
7ba9c730b33fd37be0eec329aabeb6a0

SHA1
eabc80e887de547dc8dd16d4d0a515df48f30791

SHA256
30dac0d69e366db4ce57a0935d5619e4bcebfcbaa9f14b7618970cc2aaa522f4

SHA512
a8ac548c69d3698c87a18291577e6ddc3912c6009878382c3b1bc83cd3ad2b96f39cd60f797a60ae75bb992c413dc35a6f2a4fb844640a621cf88d75a93381fc

Download Submit
C:\Users\Admin\Desktop\.exe
Filesize
1.3MB

MD5
7ba9c730b33fd37be0eec329aabeb6a0

SHA1
eabc80e887de547dc8dd16d4d0a515df48f30791

SHA256
30dac0d69e366db4ce57a0935d5619e4bcebfcbaa9f14b7618970cc2aaa522f4

SHA512
a8ac548c69d3698c87a18291577e6ddc3912c6009878382c3b1bc83cd3ad2b96f39cd60f797a60ae75bb992c413dc35a6f2a4fb844640a621cf88d75a93381fc

Download Submit
memory/1460-135-0x0000000000000000-mapping.dmp

Download
memory/1708-134-0x0000000000000000-mapping.dmp

Download
memory/1876-130-0x00000000007A0000-0x00000000008F0000-memory.dmp

Filesize
1.3MB

Download
memory/1876-131-0x0000000007CA0000-0x0000000008244000-memory.dmp

Filesize
5.6MB

Download
memory/1876-132-0x0000000007790000-0x0000000007822000-memory.dmp

Filesize
584KB

Download
memory/1876-133-0x0000000007830000-0x0000000007874000-memory.dmp

Filesize
272KB

Download
memory/3860-139-0x0000000000000000-mapping.dmp

Download
memory/5036-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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