a310logger | 980ff35a7cf5a6557b96df3d9956a133163d91d1691ccf7c1b752bdc0aa4ff2b

General

Target

a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe
Size

762KB
MD5

a9ad148eb1e943000ff55d94820da73c
SHA1

4131afbaa43d4c405e5e5c046065d12456cf8d22
SHA256

980ff35a7cf5a6557b96df3d9956a133163d91d1691ccf7c1b752bdc0aa4ff2b
SHA512

5c88f18eee0ec5e04b9f582f327f1fa125657c4ca9c6b1160ca6dcb900662f7e52529475a6867dbfecca04b69d816dd52ba99bb479fd2e6e4f7165f7af460a22
SSDEEP

12288:DPLhvHUfG027ace+kc49t1DmOz03ofuJaeWGnNaHUvJyaxMRdt0:bVPUl0UTKn3ofQLWGNaHURd+

Score

10^/10

a310logger blustealer collection spyware stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
mail.enche.com
Port:
587
Username:
[email protected]
Password:
Merchandise08012021

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/0x000300000000072f-45.dat	a310logger
behavioral2/memory/1628-47-0x00000000007D0000-0x0000000000882000-memory.dmp	a310logger

Executes dropped EXE 1 IoCs

pid	Process
1628	Fox.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\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

description	pid	Process	procid_target
PID 2900 set thread context of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1052	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94
PID 2900 wrote to memory of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94
PID 2900 wrote to memory of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94
PID 2900 wrote to memory of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94
PID 2900 wrote to memory of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94
PID 2900 wrote to memory of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94
PID 2900 wrote to memory of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94
PID 2900 wrote to memory of 1052	2900	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	94
PID 1052 wrote to memory of 1628	1052	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	95
PID 1052 wrote to memory of 1628	1052	a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fox.exe

C:\Users\Admin\AppData\Local\Temp\a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Users\Admin\AppData\Local\Temp\a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a9ad148eb1e943000ff55d94820da73c_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1052
- - 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:1628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\LWZ1H74DIL.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/1052-11-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1052-60-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1052-13-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1628-57-0x00007FFD494D0000-0x00007FFD49F91000-memory.dmp

Filesize
10.8MB

Download
memory/1628-49-0x000000001B5D0000-0x000000001B5E0000-memory.dmp

Filesize
64KB

Download
memory/1628-48-0x00007FFD494D0000-0x00007FFD49F91000-memory.dmp

Filesize
10.8MB

Download
memory/1628-47-0x00000000007D0000-0x0000000000882000-memory.dmp

Filesize
712KB

Download
memory/2900-5-0x00000000058D0000-0x00000000058DA000-memory.dmp

Filesize
40KB

Download
memory/2900-10-0x0000000007210000-0x0000000007294000-memory.dmp

Filesize
528KB

Download
memory/2900-9-0x00000000070C0000-0x000000000715C000-memory.dmp

Filesize
624KB

Download
memory/2900-16-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2900-8-0x00000000056B0000-0x00000000056C0000-memory.dmp

Filesize
64KB

Download
memory/2900-7-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2900-6-0x00000000070A0000-0x00000000070B8000-memory.dmp

Filesize
96KB

Download
memory/2900-0-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2900-4-0x00000000056B0000-0x00000000056C0000-memory.dmp

Filesize
64KB

Download
memory/2900-3-0x0000000005700000-0x0000000005792000-memory.dmp

Filesize
584KB

Download
memory/2900-2-0x0000000005C10000-0x00000000061B4000-memory.dmp

Filesize
5.6MB

Download
memory/2900-1-0x0000000000C90000-0x0000000000D54000-memory.dmp

Filesize
784KB

Download

Analysis

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