a310logger | 87c44dc08a84f171306e12a0c94547cf9540d782c7c5461a0815067a2ab0e130

Analysis

max time kernel
152s
max time network
136s
platform
windows10_x64
resource
win10v20210408
submitted
31-08-2021 03:35

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General

Target

00900090KN.exe
Size

529KB
MD5

aaf17abfdde05c49c802f36152e7332f
SHA1

96cb10637d94c28163b390d11a43a2ece002d5f0
SHA256

16c87c40706e8c0eee97f32fccac2fa229961b13d266e011ce411d37b864dafa
SHA512

d93fe97db4fe0ba40fc53996e01c3f72e184f3646d630064ba23f718c1f3e7e8bad78078772924147262551e8ab686ac3ef46af98ccb39cd68f1c98f82f4f5b3

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 5 IoCs

resource	yara_rule
behavioral2/memory/3452-118-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral2/memory/3452-119-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/2120-128-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/2120-130-0x0000000000A30000-0x0000000000B7A000-memory.dmp	family_stormkitty
behavioral2/memory/1768-137-0x0000000000412452-mapping.dmp	family_stormkitty

A310logger Executable 11 IoCs

resource	yara_rule
behavioral2/memory/3452-118-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral2/memory/3452-119-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000200000001561c-125.dat	a310logger
behavioral2/files/0x000200000001561c-124.dat	a310logger
behavioral2/memory/2120-128-0x0000000000412452-mapping.dmp	a310logger
behavioral2/memory/2120-130-0x0000000000A30000-0x0000000000B7A000-memory.dmp	a310logger
behavioral2/files/0x000100000001ab47-132.dat	a310logger
behavioral2/files/0x000100000001ab47-133.dat	a310logger
behavioral2/memory/1768-137-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x0003000000000691-140.dat	a310logger
behavioral2/files/0x0003000000000691-141.dat	a310logger

Executes dropped EXE 3 IoCs

pid	Process
804	MZ.exe
4004	MZ.exe
412	MZ.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
23	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 4 IoCs

description	pid	Process	procid_target
PID 852 set thread context of 4080	852	00900090KN.exe	75
PID 4080 set thread context of 3452	4080	00900090KN.exe	76
PID 4080 set thread context of 2120	4080	00900090KN.exe	81
PID 4080 set thread context of 1768	4080	00900090KN.exe	83

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 6 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
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	InstallUtil.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	InstallUtil.exe
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 6 IoCs

pid	Process
804	MZ.exe
804	MZ.exe
4004	MZ.exe
4004	MZ.exe
412	MZ.exe
412	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4080	00900090KN.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
852	00900090KN.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3452	InstallUtil.exe
Token: SeDebugPrivilege	804	MZ.exe
Token: SeDebugPrivilege	2120	InstallUtil.exe
Token: SeDebugPrivilege	4004	MZ.exe
Token: SeDebugPrivilege	1768	InstallUtil.exe
Token: SeDebugPrivilege	412	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4080	00900090KN.exe
4080	00900090KN.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 852 wrote to memory of 4080	852	00900090KN.exe	75
PID 852 wrote to memory of 4080	852	00900090KN.exe	75
PID 852 wrote to memory of 4080	852	00900090KN.exe	75
PID 852 wrote to memory of 4080	852	00900090KN.exe	75
PID 4080 wrote to memory of 3452	4080	00900090KN.exe	76
PID 4080 wrote to memory of 3452	4080	00900090KN.exe	76
PID 4080 wrote to memory of 3452	4080	00900090KN.exe	76
PID 4080 wrote to memory of 3452	4080	00900090KN.exe	76
PID 4080 wrote to memory of 3452	4080	00900090KN.exe	76
PID 4080 wrote to memory of 3452	4080	00900090KN.exe	76
PID 4080 wrote to memory of 3452	4080	00900090KN.exe	76
PID 4080 wrote to memory of 3452	4080	00900090KN.exe	76
PID 3452 wrote to memory of 804	3452	InstallUtil.exe	77
PID 3452 wrote to memory of 804	3452	InstallUtil.exe	77
PID 4080 wrote to memory of 2120	4080	00900090KN.exe	81
PID 4080 wrote to memory of 2120	4080	00900090KN.exe	81
PID 4080 wrote to memory of 2120	4080	00900090KN.exe	81
PID 4080 wrote to memory of 2120	4080	00900090KN.exe	81
PID 4080 wrote to memory of 2120	4080	00900090KN.exe	81
PID 4080 wrote to memory of 2120	4080	00900090KN.exe	81
PID 4080 wrote to memory of 2120	4080	00900090KN.exe	81
PID 4080 wrote to memory of 2120	4080	00900090KN.exe	81
PID 2120 wrote to memory of 4004	2120	InstallUtil.exe	82
PID 2120 wrote to memory of 4004	2120	InstallUtil.exe	82
PID 4080 wrote to memory of 1768	4080	00900090KN.exe	83
PID 4080 wrote to memory of 1768	4080	00900090KN.exe	83
PID 4080 wrote to memory of 1768	4080	00900090KN.exe	83
PID 4080 wrote to memory of 1768	4080	00900090KN.exe	83
PID 4080 wrote to memory of 1768	4080	00900090KN.exe	83
PID 4080 wrote to memory of 1768	4080	00900090KN.exe	83
PID 4080 wrote to memory of 1768	4080	00900090KN.exe	83
PID 4080 wrote to memory of 1768	4080	00900090KN.exe	83
PID 1768 wrote to memory of 412	1768	InstallUtil.exe	84
PID 1768 wrote to memory of 412	1768	InstallUtil.exe	84

C:\Users\Admin\AppData\Local\Temp\00900090KN.exe
"C:\Users\Admin\AppData\Local\Temp\00900090KN.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:852
- C:\Users\Admin\AppData\Local\Temp\00900090KN.exe
  "C:\Users\Admin\AppData\Local\Temp\00900090KN.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4080
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3452
  - - 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:804
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2120
  - - 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:4004
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1768
  - - 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:412

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/412-142-0x0000000002D00000-0x0000000002D02000-memory.dmp

Filesize
8KB

Download
memory/804-126-0x0000000002D60000-0x0000000002D62000-memory.dmp

Filesize
8KB

Download
memory/852-114-0x00000000033D0000-0x00000000033D1000-memory.dmp

Filesize
4KB

Download
memory/852-120-0x0000000005660000-0x0000000005662000-memory.dmp

Filesize
8KB

Download
memory/1768-138-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/2120-130-0x0000000000A30000-0x0000000000B7A000-memory.dmp

Filesize
1.3MB

Download
memory/3452-122-0x00000000013F0000-0x00000000013F1000-memory.dmp

Filesize
4KB

Download
memory/3452-118-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4004-135-0x0000000002F50000-0x0000000002F52000-memory.dmp

Filesize
8KB

Download
memory/4080-121-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download