a310logger | a04d1b6d23818af17d324ec5ff6e3de019b9dfc66880ab04b7c47ca9629ad336

General

Target

65fdd9a6908f3fad268bda8f8eb02a81.exe
Size

1.5MB
MD5

65fdd9a6908f3fad268bda8f8eb02a81
SHA1

8653566b42ad4e9512046bf47b3d05306b9e3a50
SHA256

a04d1b6d23818af17d324ec5ff6e3de019b9dfc66880ab04b7c47ca9629ad336
SHA512

98b21449cdf51f72ab37320387ea24d10cb051a275faf7ecc25a0f7d36ae41d40965460dc9a250fda15dc351ff18eb7bf19ae79ce1165ea43aeeb7326779791e
SSDEEP

24576:ByrrTqw+DDyPEOkrWCUQDt/tvHPT2fXNvOo:MrXoDDhOk6QZVvvT2/

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

resource	yara_rule
behavioral2/files/0x000600000002322b-52.dat	a310logger
behavioral2/memory/1588-54-0x00000000007D0000-0x0000000000882000-memory.dmp	a310logger

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	65fdd9a6908f3fad268bda8f8eb02a81.exe

Executes dropped EXE 1 IoCs

pid	Process
1588	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
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4164 set thread context of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99

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

pid	Process
3228	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4916	65fdd9a6908f3fad268bda8f8eb02a81.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 3228	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	97
PID 4164 wrote to memory of 3228	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	97
PID 4164 wrote to memory of 3228	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	97
PID 4164 wrote to memory of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99
PID 4164 wrote to memory of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99
PID 4164 wrote to memory of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99
PID 4164 wrote to memory of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99
PID 4164 wrote to memory of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99
PID 4164 wrote to memory of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99
PID 4164 wrote to memory of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99
PID 4164 wrote to memory of 4916	4164	65fdd9a6908f3fad268bda8f8eb02a81.exe	99
PID 4916 wrote to memory of 1588	4916	65fdd9a6908f3fad268bda8f8eb02a81.exe	100
PID 4916 wrote to memory of 1588	4916	65fdd9a6908f3fad268bda8f8eb02a81.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

C:\Users\Admin\AppData\Local\Temp\65fdd9a6908f3fad268bda8f8eb02a81.exe
"C:\Users\Admin\AppData\Local\Temp\65fdd9a6908f3fad268bda8f8eb02a81.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rnVsEWY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D66.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3228
- C:\Users\Admin\AppData\Local\Temp\65fdd9a6908f3fad268bda8f8eb02a81.exe
  "C:\Users\Admin\AppData\Local\Temp\65fdd9a6908f3fad268bda8f8eb02a81.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4916
- - 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:1588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1D66.tmp

Filesize
1KB

MD5
d75fe3f4da9ae13803de76ccfcd79118

SHA1
bda5d44b78d77c9fd78f4e5750e432b8dbbbb3e8

SHA256
cdb30cdc635d99d35cdbf9dad311c023c6bf457750e47dc963854f182c6430da

SHA512
edebaa27d68097a9f85b77adfe80d7730f49af501417ce277c4e21a3e504793e256f23ee0b00d3a890b5819b5bc72bff67334f4d3f7c85599b592b76739d5e91

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\EXGVCL518V.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
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\credentials.txt

Filesize
691B

MD5
055c857272026583a61e1b5821c69a24

SHA1
ec39d34f16487682801dd2b319554cbed57feca4

SHA256
190db16bb64995e3bdea04b9e6fc1994dacfea3253a7559732205b1d41362b84

SHA512
d7833c4651683e95959107e05b07b60d2e963b9fbecd0106b329e2087d1dfc9aedb962b334e22b6b462699cbce86097d4d50ce5d1310ad098e3531efaa4e204b

Download Submit
memory/1588-64-0x00007FF9CAF10000-0x00007FF9CB9D1000-memory.dmp

Filesize
10.8MB

Download
memory/1588-56-0x000000001B5A0000-0x000000001B5B0000-memory.dmp

Filesize
64KB

Download
memory/1588-55-0x00007FF9CAF10000-0x00007FF9CB9D1000-memory.dmp

Filesize
10.8MB

Download
memory/1588-54-0x00000000007D0000-0x0000000000882000-memory.dmp

Filesize
712KB

Download
memory/4164-6-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/4164-7-0x0000000005730000-0x0000000005786000-memory.dmp

Filesize
344KB

Download
memory/4164-10-0x00000000057E0000-0x00000000057F0000-memory.dmp

Filesize
64KB

Download
memory/4164-11-0x0000000006510000-0x00000000065DC000-memory.dmp

Filesize
816KB

Download
memory/4164-12-0x0000000008B10000-0x0000000008B6C000-memory.dmp

Filesize
368KB

Download
memory/4164-8-0x0000000005630000-0x000000000564E000-memory.dmp

Filesize
120KB

Download
memory/4164-2-0x0000000005510000-0x00000000055AC000-memory.dmp

Filesize
624KB

Download
memory/4164-4-0x0000000005690000-0x0000000005722000-memory.dmp

Filesize
584KB

Download
memory/4164-22-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4164-9-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4164-1-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/4164-5-0x00000000057E0000-0x00000000057F0000-memory.dmp

Filesize
64KB

Download
memory/4164-0-0x00000000009C0000-0x0000000000B54000-memory.dmp

Filesize
1.6MB

Download
memory/4164-3-0x0000000005BA0000-0x0000000006144000-memory.dmp

Filesize
5.6MB

Download
memory/4916-21-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4916-18-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4916-69-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads