masslogger | a856e5350e746c93706bb1ab5ea9ecf205fa1ac10c4363a248cd8b9ef456e66c

Analysis

max time kernel
80s
max time network
84s
platform
windows7_x64
resource
win7-20220414-en
submitted
21/05/2022, 11:18

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General

Target

Order inquiry skmt042.exe
Size

886KB
MD5

293669a0b90d7bc20d639c077517ef93
SHA1

dbe8051a4f25ee4716297a36295cafb4e46c951c
SHA256

f6df04b1b109a5d525073529a3877c3df598f9fcb62278a82412fc7736ed1ba7
SHA512

1fbd62362ff5769bb07557a498c85eab818e4916a33aab2cc65dee5566ae3a6bc6b0761e943ea7d2551a70f7609881b8d3c23c1f69a60751ff1c80749079165a

Score

10^/10

masslogger collection evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\79FE0CC911\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.6.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 11:36:49 AM MassLogger Started: 5/21/2022 11:36:42 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Order inquiry skmt042.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.samlogistics.pk
Port:
587
Username:
[email protected]
Password:
Seaimport121@

Signatures

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

MassLogger Main Payload 33 IoCs

resource	yara_rule
behavioral1/memory/1812-63-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-64-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-65-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-66-0x00000000004ACD3E-mapping.dmp	family_masslogger
behavioral1/memory/1812-68-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-70-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-72-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-74-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-76-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-78-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-80-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-82-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-84-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-86-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-88-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-90-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-92-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-94-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-96-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-98-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-100-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-102-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-104-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-108-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-106-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-110-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-112-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-114-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-116-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-120-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-118-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-122-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1812-124-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

Modifies visibility of file extensions in Explorer 2 TTPs
evasion

Hidden Files and Directories
T1158

Modify Registry
T1112

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	Order inquiry skmt042.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 15 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Order inquiry skmt042.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Order inquiry skmt042.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Order inquiry skmt042.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Order inquiry skmt042.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Order inquiry skmt042.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Order inquiry skmt042.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
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1488 set thread context of 1812	1488	Order inquiry skmt042.exe	29

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
1940	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1488	Order inquiry skmt042.exe
1488	Order inquiry skmt042.exe
1488	Order inquiry skmt042.exe
1488	Order inquiry skmt042.exe
1812	Order inquiry skmt042.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1488	Order inquiry skmt042.exe
Token: SeDebugPrivilege	1812	Order inquiry skmt042.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 1940	1488	Order inquiry skmt042.exe	27
PID 1488 wrote to memory of 1940	1488	Order inquiry skmt042.exe	27
PID 1488 wrote to memory of 1940	1488	Order inquiry skmt042.exe	27
PID 1488 wrote to memory of 1940	1488	Order inquiry skmt042.exe	27
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29
PID 1488 wrote to memory of 1812	1488	Order inquiry skmt042.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order inquiry skmt042.exe

C:\Users\Admin\AppData\Local\Temp\Order inquiry skmt042.exe
"C:\Users\Admin\AppData\Local\Temp\Order inquiry skmt042.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lgzxpd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpADEC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1940
- C:\Users\Admin\AppData\Local\Temp\Order inquiry skmt042.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Hidden Files and Directories

T1158

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpADEC.tmp

Filesize
1KB

MD5
e99475e8f5672579410a8fbf6cf2c29f

SHA1
79d033c47a0e1499944108f3fdf0ddfecb027e99

SHA256
482ba606c5fdc50532630a6f0448ae171ac4837d10a7728552daa32dcf166aac

SHA512
9aeae3f333083f5a28f3cc5bfc6f322250067497926ac736a78b5d31f1768cc4f7a23860ce92feaaadc30242ff9359f359ab16a38be4c6cc9d54d13d6fd87a2c

Download Submit
memory/1488-55-0x0000000000240000-0x000000000024A000-memory.dmp

Filesize
40KB

Download
memory/1488-56-0x00000000057A0000-0x0000000005866000-memory.dmp

Filesize
792KB

Download
memory/1488-57-0x00000000080E0000-0x0000000008192000-memory.dmp

Filesize
712KB

Download
memory/1488-54-0x0000000000250000-0x0000000000334000-memory.dmp

Filesize
912KB

Download
memory/1812-88-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-92-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-80-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-82-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-84-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-86-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-590-0x00000000043A0000-0x00000000043B4000-memory.dmp

Filesize
80KB

Download
memory/1812-90-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-94-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-96-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-98-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-100-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-102-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-104-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-108-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-106-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-110-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-112-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-114-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-116-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-120-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-118-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-122-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-124-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1812-587-0x0000000000720000-0x0000000000764000-memory.dmp

Filesize
272KB

Download
memory/1812-589-0x0000000004D55000-0x0000000004D66000-memory.dmp

Filesize
68KB

Download