masslogger | 7e8874cfbd36629e9bec7aeb253821f511e3a1296e8da614eeb96642d7257a65

General

Target

TILOCRYP.exe
Size

1.1MB
MD5

204bdadf1189b3224b4ddc9317ae1559
SHA1

27eafcc0591dc3742718a24f59aacd80a7dd3b47
SHA256

3f83c090819bc1dd8a9c1db3588b51ecd839bf0ca85a21f552c4346abe09efdc
SHA512

b73ebdc5a67acfa1b78ca1a18c2b74806034ac00e5d8eb6f35bb24e5e4106ee575886d70382c68be84f3b5f975a6a1b66a3a37c09a3492073bd318c99fbcca61

Score

10^/10

masslogger agilenet 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 11 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1784-54-0x00000000009C0000-0x0000000000AE8000-memory.dmp	family_masslogger
\Users\Admin\Documents\app.exe	family_masslogger
C:\Users\Admin\Documents\app.exe	family_masslogger
C:\Users\Admin\Documents\app.exe	family_masslogger
behavioral1/memory/964-63-0x00000000008D0000-0x00000000009F8000-memory.dmp	family_masslogger
behavioral1/memory/1388-71-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1388-72-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1388-73-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1388-74-0x0000000000481A0E-mapping.dmp	family_masslogger
behavioral1/memory/1388-77-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1388-79-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger

Executes dropped EXE 2 IoCs

Processes:

app.exeRegAsm.exe

pid process

964 app.exe
1388 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:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation RegAsm.exe
Loads dropped DLL 3 IoCs

Processes:

TILOCRYP.exeapp.exeRegAsm.exe

pid process

1784 TILOCRYP.exe
964 app.exe
1388 RegAsm.exe

pid	process
964	app.exe
1388	RegAsm.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	RegAsm.exe

pid	process
1784	TILOCRYP.exe
964	app.exe
1388	RegAsm.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/1784-56-0x0000000000250000-0x0000000000260000-memory.dmp	agile_net

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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\app = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Documents\\app.exe"	reg.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

app.exe

description pid process target process

PID 964 set thread context of 1388 964 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
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

TILOCRYP.exeapp.exeRegAsm.exe

pid process

1784 TILOCRYP.exe
1784 TILOCRYP.exe
964 app.exe
964 app.exe
964 app.exe
1388 RegAsm.exe
1388 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

TILOCRYP.exeapp.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 1784 TILOCRYP.exe
Token: SeDebugPrivilege 964 app.exe
Token: SeDebugPrivilege 1388 RegAsm.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 964 set thread context of 1388	964	app.exe	RegAsm.exe

pid	process
1784	TILOCRYP.exe
1784	TILOCRYP.exe
964	app.exe
964	app.exe
964	app.exe
1388	RegAsm.exe
1388	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1784	TILOCRYP.exe
Token: SeDebugPrivilege	964	app.exe
Token: SeDebugPrivilege	1388	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

TILOCRYP.execmd.exeapp.exe

description	pid	process	target process
PID 1784 wrote to memory of 1704	1784	TILOCRYP.exe	cmd.exe
PID 1784 wrote to memory of 1704	1784	TILOCRYP.exe	cmd.exe
PID 1784 wrote to memory of 1704	1784	TILOCRYP.exe	cmd.exe
PID 1784 wrote to memory of 1704	1784	TILOCRYP.exe	cmd.exe
PID 1704 wrote to memory of 1336	1704	cmd.exe	reg.exe
PID 1704 wrote to memory of 1336	1704	cmd.exe	reg.exe
PID 1704 wrote to memory of 1336	1704	cmd.exe	reg.exe
PID 1704 wrote to memory of 1336	1704	cmd.exe	reg.exe
PID 1784 wrote to memory of 964	1784	TILOCRYP.exe	app.exe
PID 1784 wrote to memory of 964	1784	TILOCRYP.exe	app.exe
PID 1784 wrote to memory of 964	1784	TILOCRYP.exe	app.exe
PID 1784 wrote to memory of 964	1784	TILOCRYP.exe	app.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe
PID 964 wrote to memory of 1388	964	app.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\TILOCRYP.exe
"C:\Users\Admin\AppData\Local\Temp\TILOCRYP.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1784

C:\Windows\SysWOW64\cmd.exe
"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\Documents\app.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1704

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\Documents\app.exe"
3⤵
- Adds Run key to start application
PID:1336

C:\Users\Admin\Documents\app.exe
"C:\Users\Admin\Documents\app.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:964

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1388

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
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

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

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\Documents\app.exe

Filesize
1.1MB

MD5
204bdadf1189b3224b4ddc9317ae1559

SHA1
27eafcc0591dc3742718a24f59aacd80a7dd3b47

SHA256
3f83c090819bc1dd8a9c1db3588b51ecd839bf0ca85a21f552c4346abe09efdc

SHA512
b73ebdc5a67acfa1b78ca1a18c2b74806034ac00e5d8eb6f35bb24e5e4106ee575886d70382c68be84f3b5f975a6a1b66a3a37c09a3492073bd318c99fbcca61

Download Submit
C:\Users\Admin\Documents\app.exe

Filesize
1.1MB

MD5
204bdadf1189b3224b4ddc9317ae1559

SHA1
27eafcc0591dc3742718a24f59aacd80a7dd3b47

SHA256
3f83c090819bc1dd8a9c1db3588b51ecd839bf0ca85a21f552c4346abe09efdc

SHA512
b73ebdc5a67acfa1b78ca1a18c2b74806034ac00e5d8eb6f35bb24e5e4106ee575886d70382c68be84f3b5f975a6a1b66a3a37c09a3492073bd318c99fbcca61

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

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

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

Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\Documents\app.exe

Filesize
1.1MB

MD5
204bdadf1189b3224b4ddc9317ae1559

SHA1
27eafcc0591dc3742718a24f59aacd80a7dd3b47

SHA256
3f83c090819bc1dd8a9c1db3588b51ecd839bf0ca85a21f552c4346abe09efdc

SHA512
b73ebdc5a67acfa1b78ca1a18c2b74806034ac00e5d8eb6f35bb24e5e4106ee575886d70382c68be84f3b5f975a6a1b66a3a37c09a3492073bd318c99fbcca61

Download Submit
memory/964-65-0x00000000006B0000-0x00000000006BA000-memory.dmp

Filesize
40KB

Download
memory/964-63-0x00000000008D0000-0x00000000009F8000-memory.dmp

Filesize
1.2MB

Download
memory/964-60-0x0000000000000000-mapping.dmp

Download
memory/1336-58-0x0000000000000000-mapping.dmp

Download
memory/1388-69-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1388-68-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1388-71-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1388-72-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1388-73-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1388-74-0x0000000000481A0E-mapping.dmp

Download
memory/1388-77-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1388-79-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1704-57-0x0000000000000000-mapping.dmp

Download
memory/1784-54-0x00000000009C0000-0x0000000000AE8000-memory.dmp

Filesize
1.2MB

Download
memory/1784-56-0x0000000000250000-0x0000000000260000-memory.dmp

Filesize
64KB

Download
memory/1784-55-0x00000000765F1000-0x00000000765F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads