masslogger | 92ada9f6219ca67d776271d49eeda8fc231b0d9a98b46686d5318261fd116d15

General

Target

LYUoz7EXa2f53y3.exe
Size

864KB
MD5

1274d72e82a4a389f9bd063c4b025bc0
SHA1

42bcb1cbe89361be9d538dffd2b71429ad7070cf
SHA256

641fe8dbcfc7cf68d594eda921ce75269e4d3bb74a02b7116facb091020f0806
SHA512

9699256cd3b4bea5a0230536639a00ae3ee41b6ff3cea851a31bf49d3a33af30a85a21921edd58321d85d3f19fce2b6a9eb95e2231f24da5b0df2e2d4d6ee0cc
SSDEEP

24576:plv9Wc7NBpneCf6vw3j+7Tx3B4mNJA9fyRvZsAALCvoR:plv9Wc7/peCf6vkjkTn4ky9VLmC

Score

10^/10

masslogger collection rezer0 spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.mytravelexplorer.com
Port:
587
Username:
[email protected]
Password:
43K+H2..0_g^

Signatures

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

MassLogger Main payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/392-12-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral2/memory/1832-6-0x0000000004D40000-0x0000000004DEE000-memory.dmp	rezer0

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:

LYUoz7EXa2f53y3.exeLYUoz7EXa2f53y3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	LYUoz7EXa2f53y3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	LYUoz7EXa2f53y3.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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs

collection

Email Collection

T1114

Processes:

LYUoz7EXa2f53y3.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	LYUoz7EXa2f53y3.exe
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	LYUoz7EXa2f53y3.exe
Key queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key opened	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	LYUoz7EXa2f53y3.exe
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key opened	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key opened	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	LYUoz7EXa2f53y3.exe
Key queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	LYUoz7EXa2f53y3.exe
Key queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	LYUoz7EXa2f53y3.exe
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe
Key queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.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

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

Processes:

LYUoz7EXa2f53y3.exe

description pid process target process

PID 1832 set thread context of 392 1832 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

4324 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

LYUoz7EXa2f53y3.exe

pid process

392 LYUoz7EXa2f53y3.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

LYUoz7EXa2f53y3.exe

pid process

392 LYUoz7EXa2f53y3.exe
392 LYUoz7EXa2f53y3.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

LYUoz7EXa2f53y3.exe

description pid process

Token: SeDebugPrivilege 392 LYUoz7EXa2f53y3.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LYUoz7EXa2f53y3.exe

pid process

392 LYUoz7EXa2f53y3.exe

flow	ioc
41	api.ipify.org

description	pid	process	target process
PID 1832 set thread context of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe

pid	process
4324	schtasks.exe

pid	process
392	LYUoz7EXa2f53y3.exe

pid	process
392	LYUoz7EXa2f53y3.exe
392	LYUoz7EXa2f53y3.exe

description	pid	process
Token: SeDebugPrivilege	392	LYUoz7EXa2f53y3.exe

pid	process
392	LYUoz7EXa2f53y3.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

LYUoz7EXa2f53y3.exe

description	pid	process	target process
PID 1832 wrote to memory of 4324	1832	LYUoz7EXa2f53y3.exe	schtasks.exe
PID 1832 wrote to memory of 4324	1832	LYUoz7EXa2f53y3.exe	schtasks.exe
PID 1832 wrote to memory of 4324	1832	LYUoz7EXa2f53y3.exe	schtasks.exe
PID 1832 wrote to memory of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe
PID 1832 wrote to memory of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe
PID 1832 wrote to memory of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe
PID 1832 wrote to memory of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe
PID 1832 wrote to memory of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe
PID 1832 wrote to memory of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe
PID 1832 wrote to memory of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe
PID 1832 wrote to memory of 392	1832	LYUoz7EXa2f53y3.exe	LYUoz7EXa2f53y3.exe

outlook_office_path 1 IoCs

Processes:

LYUoz7EXa2f53y3.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe

outlook_win_path 1 IoCs

Processes:

LYUoz7EXa2f53y3.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	LYUoz7EXa2f53y3.exe

C:\Users\Admin\AppData\Local\Temp\LYUoz7EXa2f53y3.exe
"C:\Users\Admin\AppData\Local\Temp\LYUoz7EXa2f53y3.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DiExUVCDQV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5EC5.tmp"
2⤵
- Creates scheduled task(s)
PID:4324

C:\Users\Admin\AppData\Local\Temp\LYUoz7EXa2f53y3.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:392

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\LYUoz7EXa2f53y3.exe.log
Filesize
507B

MD5
ab4c71d3ff6255edd4e5c1e09540f49e

SHA1
22e06bf4e258741b5df918061871cba998c50cea

SHA256
1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a

SHA512
8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5EC5.tmp
Filesize
1KB

MD5
bedf5bc7fe936564bdd0d960291f66e9

SHA1
7b1ee7f3e4f7e9728a4da6ba1e36a836e84c3291

SHA256
11f935d358442cc194d9a00a3536157cd7876e2497a2decb181dde2a87f8e3d2

SHA512
cbe7d662d4255e6cafb821b360104d3982e2f278fdff005edd7e6799db7d8dcc7f90047319a3f184ecb9093ccb13944f8fd41a2cb5ab63c3999f24ca36b5e63a

Download Submit
memory/392-28-0x0000000007220000-0x000000000722A000-memory.dmp

Filesize
40KB

Download
memory/392-12-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/392-15-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/392-46-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/392-41-0x00000000080B0000-0x00000000080C4000-memory.dmp

Filesize
80KB

Download
memory/392-33-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/392-32-0x00000000080D0000-0x0000000008120000-memory.dmp

Filesize
320KB

Download
memory/392-20-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/392-17-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/392-19-0x0000000005860000-0x00000000058C6000-memory.dmp

Filesize
408KB

Download
memory/392-47-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/392-18-0x00000000055A0000-0x00000000055E4000-memory.dmp

Filesize
272KB

Download
memory/1832-1-0x0000000000020000-0x00000000000FE000-memory.dmp

Filesize
888KB

Download
memory/1832-3-0x00000000023A0000-0x00000000023B2000-memory.dmp

Filesize
72KB

Download
memory/1832-2-0x0000000004AA0000-0x0000000004B3C000-memory.dmp

Filesize
624KB

Download
memory/1832-4-0x0000000004C20000-0x0000000004CB2000-memory.dmp

Filesize
584KB

Download
memory/1832-0-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

Filesize
4KB

Download
memory/1832-8-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/1832-7-0x0000000005860000-0x0000000005E04000-memory.dmp

Filesize
5.6MB

Download
memory/1832-6-0x0000000004D40000-0x0000000004DEE000-memory.dmp

Filesize
696KB

Download
memory/1832-5-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/1832-16-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads