a310logger | 2183dd8a07c328ff41cf8fedc06bdc9ec8166d6c11691cb6d379899318d8e555

General

Target

a6c09767f7b9b02156bd3e4f67764e79.exe
Size

922KB
MD5

a6c09767f7b9b02156bd3e4f67764e79
SHA1

5aa1d0515cd9ca1802c872cd8a9354b65cef7463
SHA256

2183dd8a07c328ff41cf8fedc06bdc9ec8166d6c11691cb6d379899318d8e555
SHA512

5f7072604303b4bea39a1c4751e09eb8399d9a10984ba2ddb699680145c952fb71d180e3e56135d30aa9639e9f5ff3899a3e58a2b7ab5d0ec38b88f94f17aa50
SSDEEP

24576:g831bHyqkkvaWB5DQaL+YFswDsd8U0Gdb:g83xjfa65DeYeCUr

Score

10^/10

a310logger blustealer collection spyware stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
mail.masarprecast.com
Port:
587
Username:
info@masarprecast.com
Password:
Masar@Shj06

Signatures

A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
stealer spyware a310logger
BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

A310logger Executable 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe	a310logger
behavioral1/memory/2232-58-0x0000000000130000-0x00000000001E2000-memory.dmp	a310logger

Executes dropped EXE 1 IoCs

Processes:

Fox.exe

pid process

2232 Fox.exe
Loads dropped DLL 1 IoCs

Processes:

a6c09767f7b9b02156bd3e4f67764e79.exe

pid process

2460 a6c09767f7b9b02156bd3e4f67764e79.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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

pid	process
2232	Fox.exe

pid	process
2460	a6c09767f7b9b02156bd3e4f67764e79.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Fox.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Suspicious use of SetThreadContext 1 IoCs

Processes:

a6c09767f7b9b02156bd3e4f67764e79.exe

description pid process target process

PID 2860 set thread context of 2460 2860 a6c09767f7b9b02156bd3e4f67764e79.exe a6c09767f7b9b02156bd3e4f67764e79.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

2544 schtasks.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a6c09767f7b9b02156bd3e4f67764e79.exe

pid process

2460 a6c09767f7b9b02156bd3e4f67764e79.exe

description	pid	process	target process
PID 2860 set thread context of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe

pid	process
2544	schtasks.exe

pid	process
2460	a6c09767f7b9b02156bd3e4f67764e79.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

a6c09767f7b9b02156bd3e4f67764e79.exea6c09767f7b9b02156bd3e4f67764e79.exe

description	pid	process	target process
PID 2860 wrote to memory of 2544	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	schtasks.exe
PID 2860 wrote to memory of 2544	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	schtasks.exe
PID 2860 wrote to memory of 2544	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	schtasks.exe
PID 2860 wrote to memory of 2544	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	schtasks.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2860 wrote to memory of 2460	2860	a6c09767f7b9b02156bd3e4f67764e79.exe	a6c09767f7b9b02156bd3e4f67764e79.exe
PID 2460 wrote to memory of 2232	2460	a6c09767f7b9b02156bd3e4f67764e79.exe	Fox.exe
PID 2460 wrote to memory of 2232	2460	a6c09767f7b9b02156bd3e4f67764e79.exe	Fox.exe
PID 2460 wrote to memory of 2232	2460	a6c09767f7b9b02156bd3e4f67764e79.exe	Fox.exe
PID 2460 wrote to memory of 2232	2460	a6c09767f7b9b02156bd3e4f67764e79.exe	Fox.exe

outlook_office_path 1 IoCs

Processes:

Fox.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

outlook_win_path 1 IoCs

Processes:

Fox.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

C:\Users\Admin\AppData\Local\Temp\a6c09767f7b9b02156bd3e4f67764e79.exe
"C:\Users\Admin\AppData\Local\Temp\a6c09767f7b9b02156bd3e4f67764e79.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2860

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LEjGKtEzH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF067.tmp"
2⤵
- Creates scheduled task(s)
PID:2544

C:\Users\Admin\AppData\Local\Temp\a6c09767f7b9b02156bd3e4f67764e79.exe
"C:\Users\Admin\AppData\Local\Temp\a6c09767f7b9b02156bd3e4f67764e79.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2460

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:2232

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

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF067.tmp
Filesize
1KB

MD5
5c2113e4547139e89037bec2423a69ec

SHA1
45d437a822c4d51408224a0aef06c5385a956ad0

SHA256
9dc8a598f8171dbe51d2ae0180d0afc2cacd2161fee9fe04907af93d56babd07

SHA512
cc32a8af821257c31faf5c5c1592013e4e0b795c23128fced6b6c8e4b4c79ab66809b4a50466cb3ca6e73aee694828a45015de5d5595a992e569d8b86f68900c

Download Submit
C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\TEMPLA~1\C5ILP3~1.ZIP
Filesize
285KB

MD5
40a9752d59f2883e40d928f85a749008

SHA1
c60fb58eff64a7969b46f3934766f991352eeb47

SHA256
ef95540ec8dae3d255439fb847d26397c265b5cccda5ed0d6b9ed3dda14a2820

SHA512
ce33985f91103315accb1039635488d7e144df264bab8e164c1f9844ce6923e1c9c76349f14542901887ffcbbbca40b92cf474126f0b94893e8af1f608464b3c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
Filesize
689KB

MD5
91b41651e6e9ab352805c6d35a297d08

SHA1
11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e

SHA256
0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723

SHA512
b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

Download Submit
memory/2232-62-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

Filesize
9.9MB

Download
memory/2232-60-0x000000001B310000-0x000000001B390000-memory.dmp

Filesize
512KB

Download
memory/2232-59-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

Filesize
9.9MB

Download
memory/2232-58-0x0000000000130000-0x00000000001E2000-memory.dmp

Filesize
712KB

Download
memory/2460-24-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2460-22-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2460-13-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2460-15-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2460-16-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2460-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-25-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-7-0x0000000000C60000-0x0000000000CC2000-memory.dmp

Filesize
392KB

Download
memory/2860-0-0x0000000001360000-0x000000000144C000-memory.dmp

Filesize
944KB

Download
memory/2860-6-0x00000000080D0000-0x000000000819E000-memory.dmp

Filesize
824KB

Download
memory/2860-5-0x0000000000700000-0x0000000000740000-memory.dmp

Filesize
256KB

Download
memory/2860-4-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-3-0x0000000000600000-0x0000000000616000-memory.dmp

Filesize
88KB

Download
memory/2860-2-0x0000000000700000-0x0000000000740000-memory.dmp

Filesize
256KB

Download
memory/2860-1-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads