a310logger | 2b6b5926ec7e5d6acea355bbd8f43a89850ed85e0c3739edfad2608ead9f1573

General

Target

doc3723636638837373344.exe
Size

546KB
MD5

bb0f727180c9b29e51c9ab2a9b4c539c
SHA1

ccd4d7a83603d2471aabb0caf2e1196b9193b586
SHA256

2b6b5926ec7e5d6acea355bbd8f43a89850ed85e0c3739edfad2608ead9f1573
SHA512

ce0670de14582f900b89149cb63fdfe171d188a1a7752d72ed068e57775c54557817acd09148d93725bd52456ed901de8e6b6d0fec0d064b24b46fa8dab7e5d5

Score

10^/10

a310logger blustealer collection spyware stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
mail.yekamuhendislik.com
Port:
587
Username:
[email protected]
Password:
MuhasebE123*

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
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe	a310logger

Executes dropped EXE 1 IoCs

Processes:

Fox.exe

pid process

1780 Fox.exe
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
T1081
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
1780	Fox.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Fox.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

doc3723636638837373344.exe

description pid process target process

PID 2112 set thread context of 708 2112 doc3723636638837373344.exe doc3723636638837373344.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

1432 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

doc3723636638837373344.exe

pid process

2112 doc3723636638837373344.exe
2112 doc3723636638837373344.exe
2112 doc3723636638837373344.exe
2112 doc3723636638837373344.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

doc3723636638837373344.exe

description pid process

Token: SeDebugPrivilege 2112 doc3723636638837373344.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

doc3723636638837373344.exe

pid process

708 doc3723636638837373344.exe

description	pid	process	target process
PID 2112 set thread context of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe

pid	process
1432	schtasks.exe

pid	process
2112	doc3723636638837373344.exe
2112	doc3723636638837373344.exe
2112	doc3723636638837373344.exe
2112	doc3723636638837373344.exe

description	pid	process
Token: SeDebugPrivilege	2112	doc3723636638837373344.exe

pid	process
708	doc3723636638837373344.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

doc3723636638837373344.exedoc3723636638837373344.exeWinMail.exe

description	pid	process	target process
PID 2112 wrote to memory of 1432	2112	doc3723636638837373344.exe	schtasks.exe
PID 2112 wrote to memory of 1432	2112	doc3723636638837373344.exe	schtasks.exe
PID 2112 wrote to memory of 1432	2112	doc3723636638837373344.exe	schtasks.exe
PID 2112 wrote to memory of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe
PID 2112 wrote to memory of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe
PID 2112 wrote to memory of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe
PID 2112 wrote to memory of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe
PID 2112 wrote to memory of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe
PID 2112 wrote to memory of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe
PID 2112 wrote to memory of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe
PID 2112 wrote to memory of 708	2112	doc3723636638837373344.exe	doc3723636638837373344.exe
PID 708 wrote to memory of 1780	708	doc3723636638837373344.exe	Fox.exe
PID 708 wrote to memory of 1780	708	doc3723636638837373344.exe	Fox.exe
PID 708 wrote to memory of 1496	708	doc3723636638837373344.exe	WinMail.exe
PID 708 wrote to memory of 1496	708	doc3723636638837373344.exe	WinMail.exe
PID 708 wrote to memory of 1496	708	doc3723636638837373344.exe	WinMail.exe
PID 1496 wrote to memory of 1144	1496	WinMail.exe	WinMail.exe
PID 1496 wrote to memory of 1144	1496	WinMail.exe	WinMail.exe

outlook_office_path 1 IoCs

Processes:

Fox.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ARXXSy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9CE8.tmp"
2⤵
- Creates scheduled task(s)
PID:1432

C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"
2⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:708

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:1780

C:\Program Files (x86)\Windows Mail\WinMail.exe
"C:\Program Files (x86)\Windows Mail\WinMail" OCInstallUserConfigOE
3⤵
- Suspicious use of WriteProcessMemory
PID:1496

C:\Program Files\Windows Mail\WinMail.exe
"C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE
4⤵
PID:1144

Network

MITRE ATT&CK Matrix ATT&CK 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

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
MD5
91b41651e6e9ab352805c6d35a297d08

SHA1
11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e

SHA256
0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723

SHA512
b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
MD5
91b41651e6e9ab352805c6d35a297d08

SHA1
11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e

SHA256
0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723

SHA512
b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\credentials.txt
MD5
055c857272026583a61e1b5821c69a24

SHA1
ec39d34f16487682801dd2b319554cbed57feca4

SHA256
190db16bb64995e3bdea04b9e6fc1994dacfea3253a7559732205b1d41362b84

SHA512
d7833c4651683e95959107e05b07b60d2e963b9fbecd0106b329e2087d1dfc9aedb962b334e22b6b462699cbce86097d4d50ce5d1310ad098e3531efaa4e204b

Download Submit
memory/708-126-0x0000000000401B9C-mapping.dmp

Download
memory/708-125-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/708-128-0x00000000014A0000-0x00000000014AA000-memory.dmp

Filesize
40KB

Download
memory/708-127-0x00000000014A0000-0x00000000014A6000-memory.dmp

Filesize
24KB

Download
memory/1144-137-0x0000000000000000-mapping.dmp

Download
memory/1432-124-0x0000000000000000-mapping.dmp

Download
memory/1496-136-0x0000000000000000-mapping.dmp

Download
memory/1780-129-0x0000000000000000-mapping.dmp

Download
memory/1780-132-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/1780-134-0x0000000000C70000-0x0000000000C72000-memory.dmp

Filesize
8KB

Download
memory/2112-120-0x00000000056D0000-0x00000000056D1000-memory.dmp

Filesize
4KB

Download
memory/2112-115-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

Filesize
4KB

Download
memory/2112-123-0x0000000006660000-0x00000000066D9000-memory.dmp

Filesize
484KB

Download
memory/2112-122-0x0000000006440000-0x0000000006441000-memory.dmp

Filesize
4KB

Download
memory/2112-119-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/2112-118-0x0000000005720000-0x0000000005721000-memory.dmp

Filesize
4KB

Download
memory/2112-117-0x0000000005C20000-0x0000000005C21000-memory.dmp

Filesize
4KB

Download
memory/2112-121-0x0000000005A30000-0x0000000005A36000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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