masslogger | cafdb96c01c40316073dcd570dd863c2962d593b087275d0b493608f1d8ca20c

General

Target

QUOTE-FILE476544567493478.pdf.exe
Size

1.4MB
MD5

dae94a89e0be7fb5eeab946b07ddc57a
SHA1

be4e5889e429eaa15acc685864fbf64dd677a903
SHA256

9827d07eba83763e229dfa24ce8c14e3751b216bba993a299f333a429b08232f
SHA512

dadb69ee9bc230e29a0f6c96e675cb8f2bdf06ce6475959352f04515901caa412869be2ac89d780361d7e372819181cff0d24dffc70dd27be12c76ee691199dd

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 11 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1844-54-0x00000000003A0000-0x000000000050E000-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/1200-63-0x00000000013D0000-0x000000000153E000-memory.dmp	family_masslogger
behavioral1/memory/1444-71-0x0000000000400000-0x00000000004B8000-memory.dmp	family_masslogger
behavioral1/memory/1444-72-0x0000000000400000-0x00000000004B8000-memory.dmp	family_masslogger
behavioral1/memory/1444-73-0x0000000000400000-0x00000000004B8000-memory.dmp	family_masslogger
behavioral1/memory/1444-74-0x00000000004B2FCE-mapping.dmp	family_masslogger
behavioral1/memory/1444-77-0x0000000000400000-0x00000000004B8000-memory.dmp	family_masslogger
behavioral1/memory/1444-79-0x0000000000400000-0x00000000004B8000-memory.dmp	family_masslogger

Executes dropped EXE 2 IoCs

Processes:

app.exeRegAsm.exe

pid process

1200 app.exe
1444 RegAsm.exe
Loads dropped DLL 3 IoCs

Processes:

QUOTE-FILE476544567493478.pdf.exeapp.exeRegAsm.exe

pid process

1844 QUOTE-FILE476544567493478.pdf.exe
1200 app.exe
1444 RegAsm.exe

pid	process
1200	app.exe
1444	RegAsm.exe

pid	process
1844	QUOTE-FILE476544567493478.pdf.exe
1200	app.exe
1444	RegAsm.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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\app = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Documents\\app.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

app.exe

description pid process target process

PID 1200 set thread context of 1444 1200 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:

QUOTE-FILE476544567493478.pdf.exeapp.exeRegAsm.exe

pid process

1844 QUOTE-FILE476544567493478.pdf.exe
1844 QUOTE-FILE476544567493478.pdf.exe
1200 app.exe
1200 app.exe
1200 app.exe
1444 RegAsm.exe
1444 RegAsm.exe

description	pid	process	target process
PID 1200 set thread context of 1444	1200	app.exe	RegAsm.exe

pid	process
1844	QUOTE-FILE476544567493478.pdf.exe
1844	QUOTE-FILE476544567493478.pdf.exe
1200	app.exe
1200	app.exe
1200	app.exe
1444	RegAsm.exe
1444	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

QUOTE-FILE476544567493478.pdf.exeapp.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1844	QUOTE-FILE476544567493478.pdf.exe
Token: SeDebugPrivilege	1200	app.exe
Token: SeDebugPrivilege	1444	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

QUOTE-FILE476544567493478.pdf.execmd.exeapp.exe

description	pid	process	target process
PID 1844 wrote to memory of 1380	1844	QUOTE-FILE476544567493478.pdf.exe	cmd.exe
PID 1844 wrote to memory of 1380	1844	QUOTE-FILE476544567493478.pdf.exe	cmd.exe
PID 1844 wrote to memory of 1380	1844	QUOTE-FILE476544567493478.pdf.exe	cmd.exe
PID 1844 wrote to memory of 1380	1844	QUOTE-FILE476544567493478.pdf.exe	cmd.exe
PID 1380 wrote to memory of 1724	1380	cmd.exe	reg.exe
PID 1380 wrote to memory of 1724	1380	cmd.exe	reg.exe
PID 1380 wrote to memory of 1724	1380	cmd.exe	reg.exe
PID 1380 wrote to memory of 1724	1380	cmd.exe	reg.exe
PID 1844 wrote to memory of 1200	1844	QUOTE-FILE476544567493478.pdf.exe	app.exe
PID 1844 wrote to memory of 1200	1844	QUOTE-FILE476544567493478.pdf.exe	app.exe
PID 1844 wrote to memory of 1200	1844	QUOTE-FILE476544567493478.pdf.exe	app.exe
PID 1844 wrote to memory of 1200	1844	QUOTE-FILE476544567493478.pdf.exe	app.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe
PID 1200 wrote to memory of 1444	1200	app.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\QUOTE-FILE476544567493478.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTE-FILE476544567493478.pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1844

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\Documents\app.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1380

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:1724

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:1200

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1444

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

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
1.4MB

MD5
dae94a89e0be7fb5eeab946b07ddc57a

SHA1
be4e5889e429eaa15acc685864fbf64dd677a903

SHA256
9827d07eba83763e229dfa24ce8c14e3751b216bba993a299f333a429b08232f

SHA512
dadb69ee9bc230e29a0f6c96e675cb8f2bdf06ce6475959352f04515901caa412869be2ac89d780361d7e372819181cff0d24dffc70dd27be12c76ee691199dd

Download Submit
C:\Users\Admin\Documents\app.exe
Filesize
1.4MB

MD5
dae94a89e0be7fb5eeab946b07ddc57a

SHA1
be4e5889e429eaa15acc685864fbf64dd677a903

SHA256
9827d07eba83763e229dfa24ce8c14e3751b216bba993a299f333a429b08232f

SHA512
dadb69ee9bc230e29a0f6c96e675cb8f2bdf06ce6475959352f04515901caa412869be2ac89d780361d7e372819181cff0d24dffc70dd27be12c76ee691199dd

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
1.4MB

MD5
dae94a89e0be7fb5eeab946b07ddc57a

SHA1
be4e5889e429eaa15acc685864fbf64dd677a903

SHA256
9827d07eba83763e229dfa24ce8c14e3751b216bba993a299f333a429b08232f

SHA512
dadb69ee9bc230e29a0f6c96e675cb8f2bdf06ce6475959352f04515901caa412869be2ac89d780361d7e372819181cff0d24dffc70dd27be12c76ee691199dd

Download Submit
memory/1200-60-0x0000000000000000-mapping.dmp

Download
memory/1200-63-0x00000000013D0000-0x000000000153E000-memory.dmp

Filesize
1.4MB

Download
memory/1200-65-0x00000000005A0000-0x00000000005AA000-memory.dmp

Filesize
40KB

Download
memory/1380-57-0x0000000000000000-mapping.dmp

Download
memory/1444-72-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1444-68-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1444-69-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1444-71-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1444-73-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1444-74-0x00000000004B2FCE-mapping.dmp

Download
memory/1444-77-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1444-79-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1444-82-0x00000000008B0000-0x0000000000928000-memory.dmp

Filesize
480KB

Download
memory/1724-58-0x0000000000000000-mapping.dmp

Download
memory/1844-54-0x00000000003A0000-0x000000000050E000-memory.dmp

Filesize
1.4MB

Download
memory/1844-56-0x0000000000530000-0x0000000000544000-memory.dmp

Filesize
80KB

Download
memory/1844-55-0x0000000075261000-0x0000000075263000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads