a310logger | b77f7c59b071608e552cf6ccae6f9e0e3f6790d83ec7d163713b0eedc6eccf25

General

Target

000100049000TK.exe
Size

955KB
MD5

113f59d0bd4384226e40c17bf899935d
SHA1

4bf159402cefe87d328182fee0e82297b1fff5c5
SHA256

b77f7c59b071608e552cf6ccae6f9e0e3f6790d83ec7d163713b0eedc6eccf25
SHA512

d8e3717916475013e8ec8cc5a5fef303c4467fe66b944f1031ee73ad964a6a699d3c872a305173ac7565e5000ade605e8cef1cbe3ca9438ac1f85993a69a3b78

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/616-70-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral1/memory/616-71-0x0000000000412452-mapping.dmp	family_stormkitty

A310logger Executable 5 IoCs

resource	yara_rule
behavioral1/memory/616-70-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral1/memory/616-71-0x0000000000412452-mapping.dmp	a310logger
behavioral1/files/0x00040000000130c5-75.dat	a310logger
behavioral1/files/0x00040000000130c5-77.dat	a310logger
behavioral1/files/0x00040000000130c5-78.dat	a310logger

Executes dropped EXE 1 IoCs

pid	Process
2040	MZ.exe

Loads dropped DLL 1 IoCs

pid	Process
616	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
4	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 528 set thread context of 1288	528	000100049000TK.exe	29
PID 1288 set thread context of 616	1288	000100049000TK.exe	30

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
2040	MZ.exe
2040	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1288	000100049000TK.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1288	000100049000TK.exe
1288	000100049000TK.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 528 wrote to memory of 1288	528	000100049000TK.exe	29
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 1288 wrote to memory of 616	1288	000100049000TK.exe	30
PID 616 wrote to memory of 2040	616	InstallUtil.exe	32
PID 616 wrote to memory of 2040	616	InstallUtil.exe	32
PID 616 wrote to memory of 2040	616	InstallUtil.exe	32
PID 616 wrote to memory of 2040	616	InstallUtil.exe	32

C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe
"C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:528
- C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe
  "C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1288
- - 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:616
  - - 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:2040

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/528-62-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

Filesize
4KB

Download
memory/528-63-0x00000000046F0000-0x0000000004761000-memory.dmp

Filesize
452KB

Download
memory/528-64-0x0000000000270000-0x000000000027F000-memory.dmp

Filesize
60KB

Download
memory/528-60-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/616-74-0x0000000000530000-0x0000000000531000-memory.dmp

Filesize
4KB

Download
memory/616-70-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1288-73-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1288-69-0x0000000075FF1000-0x0000000075FF3000-memory.dmp

Filesize
8KB

Download
memory/1288-65-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2040-79-0x00000000005B0000-0x00000000005B2000-memory.dmp

Filesize
8KB

Download

Analysis

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