a310logger | 8d3cd8573aa9b73d387284b0bd7421daf2914774153423ad74c837361b822782

Analysis

max time kernel
150s
max time network
119s
platform
windows10_x64
resource
win10v20210408
submitted
15-07-2021 12:32

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General

Target

TU09000090.exe
Size

678KB
MD5

58d412f616a769bcca7441a8d5408cf3
SHA1

a051fb0ed9bfc514a1c792fada3582017034da49
SHA256

8d3cd8573aa9b73d387284b0bd7421daf2914774153423ad74c837361b822782
SHA512

78e47adbe51a689210587a38c6656d936fa3544128ec1894f841d198d0025e3d52e922681c1251b050c60b39374f2e187b8c61a7972770f077f4fd0fb955f387

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/1852-128-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral2/memory/1852-129-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/3960-136-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/3956-145-0x0000000000412452-mapping.dmp	family_stormkitty

A310logger Executable 8 IoCs

resource	yara_rule
behavioral2/memory/1852-128-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral2/memory/1852-129-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000500000001ab3d-133.dat	a310logger
behavioral2/files/0x000500000001ab3d-132.dat	a310logger
behavioral2/memory/3960-136-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000100000001ab4a-140.dat	a310logger
behavioral2/files/0x000100000001ab4a-141.dat	a310logger
behavioral2/memory/3956-145-0x0000000000412452-mapping.dmp	a310logger

Executes dropped EXE 2 IoCs

pid	Process
2052	MZ.exe
2232	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
14	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 992 set thread context of 1280	992	TU09000090.exe	78
PID 1280 set thread context of 1852	1280	TU09000090.exe	79
PID 1280 set thread context of 3960	1280	TU09000090.exe	82
PID 1280 set thread context of 3956	1280	TU09000090.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 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 4 IoCs

pid	Process
2052	MZ.exe
2052	MZ.exe
2232	MZ.exe
2232	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1280	TU09000090.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1852	InstallUtil.exe
Token: SeDebugPrivilege	2052	MZ.exe
Token: SeDebugPrivilege	3960	InstallUtil.exe
Token: SeDebugPrivilege	2232	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1280	TU09000090.exe
1280	TU09000090.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 992 wrote to memory of 1280	992	TU09000090.exe	78
PID 992 wrote to memory of 1280	992	TU09000090.exe	78
PID 992 wrote to memory of 1280	992	TU09000090.exe	78
PID 992 wrote to memory of 1280	992	TU09000090.exe	78
PID 992 wrote to memory of 1280	992	TU09000090.exe	78
PID 992 wrote to memory of 1280	992	TU09000090.exe	78
PID 992 wrote to memory of 1280	992	TU09000090.exe	78
PID 992 wrote to memory of 1280	992	TU09000090.exe	78
PID 1280 wrote to memory of 1852	1280	TU09000090.exe	79
PID 1280 wrote to memory of 1852	1280	TU09000090.exe	79
PID 1280 wrote to memory of 1852	1280	TU09000090.exe	79
PID 1280 wrote to memory of 1852	1280	TU09000090.exe	79
PID 1280 wrote to memory of 1852	1280	TU09000090.exe	79
PID 1280 wrote to memory of 1852	1280	TU09000090.exe	79
PID 1280 wrote to memory of 1852	1280	TU09000090.exe	79
PID 1280 wrote to memory of 1852	1280	TU09000090.exe	79
PID 1852 wrote to memory of 2052	1852	InstallUtil.exe	81
PID 1852 wrote to memory of 2052	1852	InstallUtil.exe	81
PID 1280 wrote to memory of 3960	1280	TU09000090.exe	82
PID 1280 wrote to memory of 3960	1280	TU09000090.exe	82
PID 1280 wrote to memory of 3960	1280	TU09000090.exe	82
PID 1280 wrote to memory of 3960	1280	TU09000090.exe	82
PID 1280 wrote to memory of 3960	1280	TU09000090.exe	82
PID 1280 wrote to memory of 3960	1280	TU09000090.exe	82
PID 1280 wrote to memory of 3960	1280	TU09000090.exe	82
PID 1280 wrote to memory of 3960	1280	TU09000090.exe	82
PID 3960 wrote to memory of 2232	3960	InstallUtil.exe	83
PID 3960 wrote to memory of 2232	3960	InstallUtil.exe	83
PID 1280 wrote to memory of 3956	1280	TU09000090.exe	84
PID 1280 wrote to memory of 3956	1280	TU09000090.exe	84
PID 1280 wrote to memory of 3956	1280	TU09000090.exe	84
PID 1280 wrote to memory of 3956	1280	TU09000090.exe	84
PID 1280 wrote to memory of 3956	1280	TU09000090.exe	84
PID 1280 wrote to memory of 3956	1280	TU09000090.exe	84
PID 1280 wrote to memory of 3956	1280	TU09000090.exe	84
PID 1280 wrote to memory of 3956	1280	TU09000090.exe	84

C:\Users\Admin\AppData\Local\Temp\TU09000090.exe
"C:\Users\Admin\AppData\Local\Temp\TU09000090.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:992
- C:\Users\Admin\AppData\Local\Temp\TU09000090.exe
  "C:\Users\Admin\AppData\Local\Temp\TU09000090.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1280
- - 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:1852
  - - 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:2052
- - 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:3960
  - - 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:2232
- - 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
    PID:3956

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/992-120-0x00000000049B0000-0x00000000049B1000-memory.dmp

Filesize
4KB

Download
memory/992-121-0x0000000004940000-0x0000000004E3E000-memory.dmp

Filesize
5.0MB

Download
memory/992-123-0x0000000004E10000-0x0000000004E1F000-memory.dmp

Filesize
60KB

Download
memory/992-116-0x0000000004E40000-0x0000000004E41000-memory.dmp

Filesize
4KB

Download
memory/992-122-0x0000000005540000-0x00000000055B1000-memory.dmp

Filesize
452KB

Download
memory/992-117-0x00000000049E0000-0x00000000049E1000-memory.dmp

Filesize
4KB

Download
memory/992-118-0x0000000004A80000-0x0000000004A81000-memory.dmp

Filesize
4KB

Download
memory/992-119-0x0000000004B00000-0x0000000004B01000-memory.dmp

Filesize
4KB

Download
memory/992-114-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/1280-124-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1852-130-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

Filesize
4KB

Download
memory/1852-128-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2052-134-0x00000000007F0000-0x00000000007F2000-memory.dmp

Filesize
8KB

Download
memory/2232-143-0x0000000002540000-0x0000000002542000-memory.dmp

Filesize
8KB

Download
memory/3956-146-0x0000000002A40000-0x0000000002A41000-memory.dmp

Filesize
4KB

Download
memory/3960-138-0x0000000002F20000-0x0000000002F21000-memory.dmp

Filesize
4KB

Download