masslogger | 67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2

General

Target

67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Size

820KB
MD5

6e32f33a38ff5bfa5cd5883e9ea49b96
SHA1

3e3771a344d29ee1afd6a36d6360c0ed80ddb3ff
SHA256

67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2
SHA512

12fdcb1e8f64bcbd2861ffa75631f291ef35c2418be6576dbb9995b9cec3d30b32bd4ed76409e9a80cbfd02a3dc01836fae72c886643009e50ba55000bde90dd
SSDEEP

12288:wsJIlwYGu9Qz1dJmKmq33ckBx2dtkrtGq23qFsAiMJ9kbX/JjNzERmsqWPjtVnD5:wTl7AdFmqfBMpZzMJejyRpPfnf1

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\0B7B20BDD4\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 10 Pro64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 1/29/2023 8:31:35 PM MassLogger Started: 1/29/2023 8:31:32 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.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 1 IoCs

resource	yara_rule
behavioral2/memory/1968-142-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.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.

flow	ioc
52	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1564 set thread context of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
5080	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1968	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
1968	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
1968	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
Token: SeDebugPrivilege	1968	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1968	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1564 wrote to memory of 5080	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	91
PID 1564 wrote to memory of 5080	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	91
PID 1564 wrote to memory of 5080	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	91
PID 1564 wrote to memory of 2644	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	93
PID 1564 wrote to memory of 2644	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	93
PID 1564 wrote to memory of 2644	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	93
PID 1564 wrote to memory of 1072	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	94
PID 1564 wrote to memory of 1072	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	94
PID 1564 wrote to memory of 1072	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	94
PID 1564 wrote to memory of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95
PID 1564 wrote to memory of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95
PID 1564 wrote to memory of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95
PID 1564 wrote to memory of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95
PID 1564 wrote to memory of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95
PID 1564 wrote to memory of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95
PID 1564 wrote to memory of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95
PID 1564 wrote to memory of 1968	1564	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe

C:\Users\Admin\AppData\Local\Temp\67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
"C:\Users\Admin\AppData\Local\Temp\67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NERzax" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEACD.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:5080
- C:\Users\Admin\AppData\Local\Temp\67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
  "{path}"
  2⤵
  PID:2644
- C:\Users\Admin\AppData\Local\Temp\67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
  "{path}"
  2⤵
  PID:1072
- C:\Users\Admin\AppData\Local\Temp\67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1968

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\67a7100bbf102bed2773f56abdb1f761d7255bdf21ddf0a80bd2e7ec316af6e2.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEACD.tmp

Filesize
1KB

MD5
7c208d04b458d3574e64fb65e8e93fa1

SHA1
6b2369cb0ee592f238d6bd0da9eec4c8c44ea5bf

SHA256
a85e61c3cb133e5df8d0a90688cde28a98bab4410b1abf766d8dbf0bef68c34a

SHA512
88c1ba5b6e04b001de5d4c337e826c2e52caefed2544a23f0dd6a035644f8f22211bb690b8dc930058efe4739128a3f72266fee842bb2fb101c32fbc76300437

Download Submit
memory/1564-135-0x0000000005060000-0x000000000506A000-memory.dmp

Filesize
40KB

Download
memory/1564-136-0x00000000088B0000-0x000000000894C000-memory.dmp

Filesize
624KB

Download
memory/1564-132-0x0000000000680000-0x0000000000754000-memory.dmp

Filesize
848KB

Download
memory/1564-134-0x0000000004FB0000-0x0000000005042000-memory.dmp

Filesize
584KB

Download
memory/1564-133-0x0000000005690000-0x0000000005C34000-memory.dmp

Filesize
5.6MB

Download
memory/1968-142-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1968-144-0x00000000051F0000-0x0000000005256000-memory.dmp

Filesize
408KB

Download
memory/1968-145-0x0000000007D90000-0x0000000007DE0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads