a310logger | 9fd0e322d18f9aa1419a05f6df740f13187b61e3643d78ad8b39821b27756f39

General

Target

DC9087009000.exe
Size

564KB
MD5

1a38c8b2bd82b0c0efd9bcdd6a02d5c8
SHA1

6ce1c0fb181c34931809ceac48d36c7c2b40e769
SHA256

99725d77056555125ea584b0ea92984abdb963950773181c61808a45ab3905a4
SHA512

0b29c653c15552ee2dde3e3acae1397f8642d4f26d635b9d3f5b25e1aafb25d6df1f78053d5cbc4ebf43c0ffda6f1ef2e8f0b367e0480dec5bcfc2c2a409ae7a

Score

10^/10

a310logger stormkitty spyware stealer

Malware Config

Signatures

A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
stealer spyware a310logger
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty Payload 2 IoCs

resource	yara_rule
behavioral1/memory/1928-71-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral1/memory/1928-70-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty

A310logger Executable 5 IoCs

resource	yara_rule
behavioral1/memory/1928-71-0x0000000000412452-mapping.dmp	a310logger
behavioral1/memory/1928-70-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral1/files/0x00040000000130e9-75.dat	a310logger
behavioral1/files/0x00040000000130e9-77.dat	a310logger
behavioral1/files/0x00040000000130e9-78.dat	a310logger

Executes dropped EXE 1 IoCs

pid	Process
520	MZ.exe

Loads dropped DLL 1 IoCs

pid	Process
1928	InstallUtil.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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1072 set thread context of 1396	1072	DC9087009000.exe	26
PID 1396 set thread context of 1928	1396	DC9087009000.exe	27

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	InstallUtil.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
520	MZ.exe
520	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1396	DC9087009000.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	520	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1396	DC9087009000.exe
1396	DC9087009000.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1072 wrote to memory of 1396	1072	DC9087009000.exe	26
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1396 wrote to memory of 1928	1396	DC9087009000.exe	27
PID 1928 wrote to memory of 520	1928	InstallUtil.exe	32
PID 1928 wrote to memory of 520	1928	InstallUtil.exe	32
PID 1928 wrote to memory of 520	1928	InstallUtil.exe	32
PID 1928 wrote to memory of 520	1928	InstallUtil.exe	32

C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe
"C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe
  "C:\Users\Admin\AppData\Local\Temp\DC9087009000.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1396
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious use of WriteProcessMemory
    PID:1928
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/520-79-0x0000000002000000-0x0000000002002000-memory.dmp

Filesize
8KB

Download
memory/1072-62-0x0000000000EB0000-0x0000000000F21000-memory.dmp

Filesize
452KB

Download
memory/1072-63-0x00000000004C0000-0x00000000004CF000-memory.dmp

Filesize
60KB

Download
memory/1072-64-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

Filesize
4KB

Download
memory/1072-60-0x0000000000F60000-0x0000000000F61000-memory.dmp

Filesize
4KB

Download
memory/1396-73-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1396-69-0x0000000075411000-0x0000000075413000-memory.dmp

Filesize
8KB

Download
memory/1396-65-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1928-74-0x0000000000D30000-0x0000000000D31000-memory.dmp

Filesize
4KB

Download
memory/1928-70-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

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