a310logger | 2079e40b5cbdef00232f13d540bb2e057952692a184d7a4c41daffe882943d4a

Analysis

max time kernel
151s
max time network
137s
platform
windows10_x64
resource
win10-en
submitted
06/09/2021, 06:49

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General

Target
NKPOY00987900K.exe
Size 37KB
Sample210906-hlrbyaafc2
SHA256 990b62bd8929c8b736fdcf793edb869c350b1a47a7d14ae07f12f951b4d9d55d
MD5 519495b97861c5e3aa560ccbf16b6a00
SHA1 d25dfc588f3462eb4bfb4360bf2822c5c8645ec5
SHA512 7720caf3c3aed61ef4fc00c3f281f56b5fc547abee6a7c0014e77b465b6684ea657bba3de7a289ae4e7f5a3186bcceb589d19ea906471668d59cffdde6c8e03c
MD5 SHA1 SHA512

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 4 IoCs

resource	yara_rule
behavioral2/memory/3368-118-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral2/memory/3368-119-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/3504-128-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/1272-137-0x0000000000412452-mapping.dmp	family_stormkitty

A310logger Executable 10 IoCs

resource	yara_rule
behavioral2/memory/3368-118-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral2/memory/3368-119-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000600000000ff5d-124.dat	a310logger
behavioral2/files/0x000600000000ff5d-125.dat	a310logger
behavioral2/memory/3504-128-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000700000001ab27-132.dat	a310logger
behavioral2/files/0x000700000001ab27-133.dat	a310logger
behavioral2/memory/1272-137-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000800000001ab27-140.dat	a310logger
behavioral2/files/0x000800000001ab27-141.dat	a310logger

Executes dropped EXE 3 IoCs

pid	Process
3820	MZ.exe
2024	MZ.exe
812	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
19	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 2280 set thread context of 2820	2280	NKPOY00987900K.exe	76
PID 2820 set thread context of 3368	2820	NKPOY00987900K.exe	77
PID 2820 set thread context of 3504	2820	NKPOY00987900K.exe	82
PID 2820 set thread context of 1272	2820	NKPOY00987900K.exe	84

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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3820	MZ.exe
3820	MZ.exe
2024	MZ.exe
2024	MZ.exe
812	MZ.exe
812	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2820	NKPOY00987900K.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2280	NKPOY00987900K.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3368	InstallUtil.exe
Token: SeDebugPrivilege	3820	MZ.exe
Token: SeDebugPrivilege	3504	InstallUtil.exe
Token: SeDebugPrivilege	2024	MZ.exe
Token: SeDebugPrivilege	1272	InstallUtil.exe
Token: SeDebugPrivilege	812	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2820	NKPOY00987900K.exe
2820	NKPOY00987900K.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2820	2280	NKPOY00987900K.exe	76
PID 2280 wrote to memory of 2820	2280	NKPOY00987900K.exe	76
PID 2280 wrote to memory of 2820	2280	NKPOY00987900K.exe	76
PID 2280 wrote to memory of 2820	2280	NKPOY00987900K.exe	76
PID 2820 wrote to memory of 3368	2820	NKPOY00987900K.exe	77
PID 2820 wrote to memory of 3368	2820	NKPOY00987900K.exe	77
PID 2820 wrote to memory of 3368	2820	NKPOY00987900K.exe	77
PID 2820 wrote to memory of 3368	2820	NKPOY00987900K.exe	77
PID 2820 wrote to memory of 3368	2820	NKPOY00987900K.exe	77
PID 2820 wrote to memory of 3368	2820	NKPOY00987900K.exe	77
PID 2820 wrote to memory of 3368	2820	NKPOY00987900K.exe	77
PID 2820 wrote to memory of 3368	2820	NKPOY00987900K.exe	77
PID 3368 wrote to memory of 3820	3368	InstallUtil.exe	80
PID 3368 wrote to memory of 3820	3368	InstallUtil.exe	80
PID 2820 wrote to memory of 3504	2820	NKPOY00987900K.exe	82
PID 2820 wrote to memory of 3504	2820	NKPOY00987900K.exe	82
PID 2820 wrote to memory of 3504	2820	NKPOY00987900K.exe	82
PID 2820 wrote to memory of 3504	2820	NKPOY00987900K.exe	82
PID 2820 wrote to memory of 3504	2820	NKPOY00987900K.exe	82
PID 2820 wrote to memory of 3504	2820	NKPOY00987900K.exe	82
PID 2820 wrote to memory of 3504	2820	NKPOY00987900K.exe	82
PID 2820 wrote to memory of 3504	2820	NKPOY00987900K.exe	82
PID 3504 wrote to memory of 2024	3504	InstallUtil.exe	83
PID 3504 wrote to memory of 2024	3504	InstallUtil.exe	83
PID 2820 wrote to memory of 1272	2820	NKPOY00987900K.exe	84
PID 2820 wrote to memory of 1272	2820	NKPOY00987900K.exe	84
PID 2820 wrote to memory of 1272	2820	NKPOY00987900K.exe	84
PID 2820 wrote to memory of 1272	2820	NKPOY00987900K.exe	84
PID 2820 wrote to memory of 1272	2820	NKPOY00987900K.exe	84
PID 2820 wrote to memory of 1272	2820	NKPOY00987900K.exe	84
PID 2820 wrote to memory of 1272	2820	NKPOY00987900K.exe	84
PID 2820 wrote to memory of 1272	2820	NKPOY00987900K.exe	84
PID 1272 wrote to memory of 812	1272	InstallUtil.exe	85
PID 1272 wrote to memory of 812	1272	InstallUtil.exe	85

C:\Users\Admin\AppData\Local\Temp\NKPOY00987900K.exe
"C:\Users\Admin\AppData\Local\Temp\NKPOY00987900K.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\NKPOY00987900K.exe
  "C:\Users\Admin\AppData\Local\Temp\NKPOY00987900K.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2820
- - 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:3368
  - - 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:3820
- - 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:3504
  - - 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:2024
- - 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:1272
  - - 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:812

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/812-142-0x0000000000C40000-0x0000000000C42000-memory.dmp

Download

memory/1272-138-0x0000000002EE0000-0x0000000002EE1000-memory.dmp

Download

memory/2024-135-0x0000000000FC0000-0x0000000000FC2000-memory.dmp

Download

memory/2280-120-0x000000000F3C0000-0x000000000F3C2000-memory.dmp

Download

memory/2820-121-0x0000000000400000-0x0000000000430000-memory.dmp

Download

memory/3368-118-0x0000000000400000-0x0000000000418000-memory.dmp

Download

memory/3368-122-0x0000000001410000-0x0000000001411000-memory.dmp

Download

memory/3504-130-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

Download

memory/3820-126-0x0000000002260000-0x0000000002262000-memory.dmp

Download