masslogger | 967829fdb0b2f1b7a86923187553ebf53066b92d543ca6d2587519a9700999da

General

Target

IMAGE.exe
Size

1.3MB
MD5

77fe809f6ab75c8e4ca3b09d79e7d1c5
SHA1

081154438bcc637acd03bb10e18c71755692ef09
SHA256

2f4324dda02f8721cf5c0c0ed404de8fedbc46cf8fb1dda0e3ec3d07d6fb42e0
SHA512

fd36cdffe011dce3104046769f60c5104a5f5c1e4045e82e749281d22ef2461969b41b064c20547fecb47e6c1f4c57fca73b367b307a35a952e8a9e694617a52

Score

10^/10

masslogger persistence ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\781F780B4E\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.4.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 12:18:21 AM MassLogger Started: 5/21/2022 12:18:18 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 36 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5088-133-0x00000000006B0000-0x000000000080E000-memory.dmp	family_masslogger
C:\Users\Admin\AppData\Roaming\Vwifibus.exe	family_masslogger
C:\Users\Admin\AppData\Roaming\Vwifibus.exe	family_masslogger
behavioral2/memory/1408-147-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-149-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-151-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-153-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-155-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-157-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-159-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-161-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-163-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-165-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-167-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-169-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-171-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-173-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-175-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-177-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-179-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-181-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-183-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-185-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-187-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-189-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-191-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-193-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-195-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-197-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-199-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-201-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-203-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-205-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-207-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-209-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger
behavioral2/memory/1408-211-0x00000000005C0000-0x0000000000670000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file
Executes dropped EXE 2 IoCs

Processes:

Vwifibus.exeAddInProcess32.exe

pid process

2796 Vwifibus.exe
1408 AddInProcess32.exe

yara_rule
masslogger_log_file

pid	process
2796	Vwifibus.exe
1408	AddInProcess32.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

IMAGE.exeAddInProcess32.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	IMAGE.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	AddInProcess32.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\Vwifibus = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Vwifibus.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

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

Processes:

Vwifibus.exe

description pid process target process

PID 2796 set thread context of 1408 2796 Vwifibus.exe AddInProcess32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	ioc
34	api.ipify.org

description	pid	process	target process
PID 2796 set thread context of 1408	2796	Vwifibus.exe	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

IMAGE.exeVwifibus.exeAddInProcess32.exe

pid	process
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
5088	IMAGE.exe
2796	Vwifibus.exe
2796	Vwifibus.exe
2796	Vwifibus.exe
1408	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IMAGE.exeVwifibus.exeAddInProcess32.exe

description pid process

Token: SeDebugPrivilege 5088 IMAGE.exe
Token: SeDebugPrivilege 2796 Vwifibus.exe
Token: SeDebugPrivilege 1408 AddInProcess32.exe

description	pid	process
Token: SeDebugPrivilege	5088	IMAGE.exe
Token: SeDebugPrivilege	2796	Vwifibus.exe
Token: SeDebugPrivilege	1408	AddInProcess32.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

IMAGE.execmd.exeVwifibus.exe

description	pid	process	target process
PID 5088 wrote to memory of 2612	5088	IMAGE.exe	cmd.exe
PID 5088 wrote to memory of 2612	5088	IMAGE.exe	cmd.exe
PID 5088 wrote to memory of 2612	5088	IMAGE.exe	cmd.exe
PID 2612 wrote to memory of 4272	2612	cmd.exe	reg.exe
PID 2612 wrote to memory of 4272	2612	cmd.exe	reg.exe
PID 2612 wrote to memory of 4272	2612	cmd.exe	reg.exe
PID 5088 wrote to memory of 2796	5088	IMAGE.exe	Vwifibus.exe
PID 5088 wrote to memory of 2796	5088	IMAGE.exe	Vwifibus.exe
PID 5088 wrote to memory of 2796	5088	IMAGE.exe	Vwifibus.exe
PID 2796 wrote to memory of 1408	2796	Vwifibus.exe	AddInProcess32.exe
PID 2796 wrote to memory of 1408	2796	Vwifibus.exe	AddInProcess32.exe
PID 2796 wrote to memory of 1408	2796	Vwifibus.exe	AddInProcess32.exe
PID 2796 wrote to memory of 1408	2796	Vwifibus.exe	AddInProcess32.exe
PID 2796 wrote to memory of 1408	2796	Vwifibus.exe	AddInProcess32.exe
PID 2796 wrote to memory of 1408	2796	Vwifibus.exe	AddInProcess32.exe
PID 2796 wrote to memory of 1408	2796	Vwifibus.exe	AddInProcess32.exe
PID 2796 wrote to memory of 1408	2796	Vwifibus.exe	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\IMAGE.exe
"C:\Users\Admin\AppData\Local\Temp\IMAGE.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5088

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v Vwifibus /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Vwifibus.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2612

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v Vwifibus /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Vwifibus.exe"
3⤵
- Adds Run key to start application
PID:4272

C:\Users\Admin\AppData\Roaming\Vwifibus.exe
"C:\Users\Admin\AppData\Roaming\Vwifibus.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1408

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
Filesize
42KB

MD5
9827ff3cdf4b83f9c86354606736ca9c

SHA1
e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723

SHA256
c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a

SHA512
8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579

Download Submit
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
Filesize
42KB

MD5
9827ff3cdf4b83f9c86354606736ca9c

SHA1
e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723

SHA256
c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a

SHA512
8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579

Download Submit
C:\Users\Admin\AppData\Roaming\Vwifibus.exe
Filesize
1.3MB

MD5
77fe809f6ab75c8e4ca3b09d79e7d1c5

SHA1
081154438bcc637acd03bb10e18c71755692ef09

SHA256
2f4324dda02f8721cf5c0c0ed404de8fedbc46cf8fb1dda0e3ec3d07d6fb42e0

SHA512
fd36cdffe011dce3104046769f60c5104a5f5c1e4045e82e749281d22ef2461969b41b064c20547fecb47e6c1f4c57fca73b367b307a35a952e8a9e694617a52

Download Submit
C:\Users\Admin\AppData\Roaming\Vwifibus.exe
Filesize
1.3MB

MD5
77fe809f6ab75c8e4ca3b09d79e7d1c5

SHA1
081154438bcc637acd03bb10e18c71755692ef09

SHA256
2f4324dda02f8721cf5c0c0ed404de8fedbc46cf8fb1dda0e3ec3d07d6fb42e0

SHA512
fd36cdffe011dce3104046769f60c5104a5f5c1e4045e82e749281d22ef2461969b41b064c20547fecb47e6c1f4c57fca73b367b307a35a952e8a9e694617a52

Download Submit
memory/1408-169-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-657-0x0000000004DF0000-0x0000000004E56000-memory.dmp

Filesize
408KB

Download
memory/1408-658-0x00000000063B0000-0x00000000063BA000-memory.dmp

Filesize
40KB

Download
memory/1408-173-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-175-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-656-0x0000000004B70000-0x0000000004C0C000-memory.dmp

Filesize
624KB

Download
memory/1408-143-0x0000000000000000-mapping.dmp

Download
memory/1408-211-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-209-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-147-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-149-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-151-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-153-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-155-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-157-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-159-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-161-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-177-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-165-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-167-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-207-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-171-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-205-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-203-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-163-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-179-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-181-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-183-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-185-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-187-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-189-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-191-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-193-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-195-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-197-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-199-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/1408-201-0x00000000005C0000-0x0000000000670000-memory.dmp

Filesize
704KB

Download
memory/2612-137-0x0000000000000000-mapping.dmp

Download
memory/2796-142-0x00000000069A0000-0x00000000069C2000-memory.dmp

Filesize
136KB

Download
memory/2796-139-0x0000000000000000-mapping.dmp

Download
memory/4272-138-0x0000000000000000-mapping.dmp

Download
memory/5088-133-0x00000000006B0000-0x000000000080E000-memory.dmp

Filesize
1.4MB

Download
memory/5088-134-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/5088-135-0x00000000052D0000-0x0000000005362000-memory.dmp

Filesize
584KB

Download
memory/5088-136-0x00000000056D0000-0x0000000005714000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads