masslogger | d9ba65273cd9e8f4f3c4dcf601c652d153fe3fc54a0dd1135389574945128dd5

Analysis

max time kernel
130s
max time network
167s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 02:02

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General

Target

PURCHASE.exe
Size

1.7MB
MD5

692a0e33a1f8159a91020ff78a91fd0f
SHA1

e609fdef9d33611113fe311276d6584a0d3e221c
SHA256

dbdbfa24b62d54b1624dac7d07bd939677342c820867b0d8993f0ab95af3d342
SHA512

1bc350b7aee9c53d116ea2dc41e04dce24bae01b2a0a41fa56457d42a5164e76b7debdf6be9670f83a87b3922f85d4548ebbbcc655e03ed7a344a212135eeb72

Score

10^/10

masslogger collection rezer0 spyware stealer upx

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.flockmail.com
Port:
587
Username:
[email protected]
Password:
Fraudoo7

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file

yara_rule
masslogger_log_file

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\Costura\8E3603ED8A0381E02887C1DBBE921340\32\sqlite.interop.dll	acprotect

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1992-57-0x000000000A260000-0x000000000A3C6000-memory.dmp	rezer0

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\Costura\8E3603ED8A0381E02887C1DBBE921340\32\sqlite.interop.dll	upx

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

Processes:

PURCHASE.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	PURCHASE.exe

Loads dropped DLL 1 IoCs

Processes:

PURCHASE.exe

pid process

1660 PURCHASE.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

pid	process
1660	PURCHASE.exe

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

Processes:

PURCHASE.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PURCHASE.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PURCHASE.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PURCHASE.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PURCHASE.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PURCHASE.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PURCHASE.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.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

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

Processes:

PURCHASE.exe

description pid process target process

PID 1992 set thread context of 1660 1992 PURCHASE.exe PURCHASE.exe
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

Processes:

schtasks.exe

pid process

1700 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

PURCHASE.exe

pid process

1660 PURCHASE.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

PURCHASE.exe

pid process

1660 PURCHASE.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PURCHASE.exePURCHASE.exe

description pid process

Token: SeDebugPrivilege 1992 PURCHASE.exe
Token: SeDebugPrivilege 1660 PURCHASE.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PURCHASE.exe

pid process

1660 PURCHASE.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1992 set thread context of 1660	1992	PURCHASE.exe	PURCHASE.exe

pid	process
1700	schtasks.exe

pid	process
1660	PURCHASE.exe

pid	process
1660	PURCHASE.exe

description	pid	process
Token: SeDebugPrivilege	1992	PURCHASE.exe
Token: SeDebugPrivilege	1660	PURCHASE.exe

pid	process
1660	PURCHASE.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PURCHASE.exe

description	pid	process	target process
PID 1992 wrote to memory of 1700	1992	PURCHASE.exe	schtasks.exe
PID 1992 wrote to memory of 1700	1992	PURCHASE.exe	schtasks.exe
PID 1992 wrote to memory of 1700	1992	PURCHASE.exe	schtasks.exe
PID 1992 wrote to memory of 1700	1992	PURCHASE.exe	schtasks.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe
PID 1992 wrote to memory of 1660	1992	PURCHASE.exe	PURCHASE.exe

outlook_office_path 1 IoCs

Processes:

PURCHASE.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe

outlook_win_path 1 IoCs

Processes:

PURCHASE.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PURCHASE.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UTZEtCS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D8.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1700
- C:\Users\Admin\AppData\Local\Temp\PURCHASE.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - 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:1660

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3D8.tmp

Filesize
1KB

MD5
d35735e2f2c4449eeeca3d4fb9254702

SHA1
a52b2a0d2a2451742ca0a008eef0f4b867ba6bc2

SHA256
4e2b9d28fd20df815c5dbe2f5aef8fc19fcc843b17fe72f3dfa32e9cdeff0f64

SHA512
c0268f5ab9323d3ca970efe8b7ac5f15291b1930bb1f5ee9507a1a501c1ab8c77b7847584366fb37ae0709dc086d6aec3fc140f3767a897e4e0f2167b5b466dd

Download Submit
\Users\Admin\AppData\Local\Temp\Costura\8E3603ED8A0381E02887C1DBBE921340\32\sqlite.interop.dll

Filesize
594KB

MD5
e81aeac387c5db32b7f9b07d15e788e0

SHA1
829be6eaf1cb0d82b2ddfc98272e1087f4a7a7c3

SHA256
44f31f99f048bfc5195937353b5207332e455bcd5a722bcfd32cacfd93f60f06

SHA512
cc6a96325a01c50c059706a1f4156f109e502ef9c0b0f5de209d1f52e7cc973cebc027f57ed988e9d1b8fca62746b60ee7430d608de95cdd0e5ac3cb61fbe32e

Download Submit
memory/1660-88-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-64-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-92-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-635-0x0000000006050000-0x00000000060B0000-memory.dmp

Filesize
384KB

Download
memory/1660-60-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-61-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-63-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-90-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-66-0x000000000055996E-mapping.dmp

Download
memory/1660-68-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-65-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-70-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-634-0x0000000005D60000-0x0000000005DF0000-memory.dmp

Filesize
576KB

Download
memory/1660-74-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-76-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-78-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-80-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-82-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-84-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-86-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-72-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-633-0x0000000000370000-0x00000000003B4000-memory.dmp

Filesize
272KB

Download
memory/1660-122-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-94-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-96-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-98-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-100-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-102-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-104-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-106-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-108-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-110-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-112-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-114-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-116-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-118-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1660-120-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/1700-58-0x0000000000000000-mapping.dmp

Download
memory/1992-55-0x00000000755C1000-0x00000000755C3000-memory.dmp

Filesize
8KB

Download
memory/1992-57-0x000000000A260000-0x000000000A3C6000-memory.dmp

Filesize
1.4MB

Download
memory/1992-54-0x0000000000B10000-0x0000000000CCC000-memory.dmp

Filesize
1.7MB

Download
memory/1992-56-0x00000000003D0000-0x00000000003D8000-memory.dmp

Filesize
32KB

Download