a310logger | 9fd0e322d18f9aa1419a05f6df740f13187b61e3643d78ad8b39821b27756f39

Analysis

max time kernel
152s
max time network
122s
platform
windows10_x64
resource
win10v20210408
submitted
04-09-2021 07:03

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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 3 IoCs

resource	yara_rule
behavioral2/memory/3688-126-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral2/memory/3688-127-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/888-136-0x0000000000412452-mapping.dmp	family_stormkitty

A310logger Executable 7 IoCs

resource	yara_rule
behavioral2/memory/3688-126-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral2/memory/3688-127-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000400000001ab1b-130.dat	a310logger
behavioral2/files/0x000400000001ab1b-131.dat	a310logger
behavioral2/memory/888-136-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000100000001ab2d-140.dat	a310logger
behavioral2/files/0x000100000001ab2d-141.dat	a310logger

Executes dropped EXE 2 IoCs

pid	Process
2152	MZ.exe
2804	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
13	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 568 set thread context of 2792	568	DC9087009000.exe	75
PID 2792 set thread context of 3688	2792	DC9087009000.exe	76
PID 2792 set thread context of 1504	2792	DC9087009000.exe	81
PID 2792 set thread context of 888	2792	DC9087009000.exe	84

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2324	1504	WerFault.exe	81

Checks processor information in registry 2 TTPs 4 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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2152	MZ.exe
2152	MZ.exe
2804	MZ.exe
2804	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2792	DC9087009000.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3688	InstallUtil.exe
Token: SeDebugPrivilege	2152	MZ.exe
Token: SeDebugPrivilege	888	InstallUtil.exe
Token: SeDebugPrivilege	2804	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2792	DC9087009000.exe
2792	DC9087009000.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 568 wrote to memory of 2792	568	DC9087009000.exe	75
PID 568 wrote to memory of 2792	568	DC9087009000.exe	75
PID 568 wrote to memory of 2792	568	DC9087009000.exe	75
PID 568 wrote to memory of 2792	568	DC9087009000.exe	75
PID 568 wrote to memory of 2792	568	DC9087009000.exe	75
PID 568 wrote to memory of 2792	568	DC9087009000.exe	75
PID 568 wrote to memory of 2792	568	DC9087009000.exe	75
PID 568 wrote to memory of 2792	568	DC9087009000.exe	75
PID 2792 wrote to memory of 3688	2792	DC9087009000.exe	76
PID 2792 wrote to memory of 3688	2792	DC9087009000.exe	76
PID 2792 wrote to memory of 3688	2792	DC9087009000.exe	76
PID 2792 wrote to memory of 3688	2792	DC9087009000.exe	76
PID 2792 wrote to memory of 3688	2792	DC9087009000.exe	76
PID 2792 wrote to memory of 3688	2792	DC9087009000.exe	76
PID 2792 wrote to memory of 3688	2792	DC9087009000.exe	76
PID 2792 wrote to memory of 3688	2792	DC9087009000.exe	76
PID 3688 wrote to memory of 2152	3688	InstallUtil.exe	79
PID 3688 wrote to memory of 2152	3688	InstallUtil.exe	79
PID 2792 wrote to memory of 1504	2792	DC9087009000.exe	81
PID 2792 wrote to memory of 1504	2792	DC9087009000.exe	81
PID 2792 wrote to memory of 1504	2792	DC9087009000.exe	81
PID 2792 wrote to memory of 1504	2792	DC9087009000.exe	81
PID 2792 wrote to memory of 888	2792	DC9087009000.exe	84
PID 2792 wrote to memory of 888	2792	DC9087009000.exe	84
PID 2792 wrote to memory of 888	2792	DC9087009000.exe	84
PID 2792 wrote to memory of 888	2792	DC9087009000.exe	84
PID 2792 wrote to memory of 888	2792	DC9087009000.exe	84
PID 2792 wrote to memory of 888	2792	DC9087009000.exe	84
PID 2792 wrote to memory of 888	2792	DC9087009000.exe	84
PID 2792 wrote to memory of 888	2792	DC9087009000.exe	84
PID 888 wrote to memory of 2804	888	InstallUtil.exe	86
PID 888 wrote to memory of 2804	888	InstallUtil.exe	86

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:568
- 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:2792
- - 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:3688
  - - 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:2152
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    PID:1504
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1504 -s 88
      4⤵
      Program crash
      PID:2324
- - 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:888
  - - 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:2804

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/568-121-0x0000000004F50000-0x0000000004F5F000-memory.dmp

Filesize
60KB

Download
memory/568-116-0x0000000004E80000-0x0000000004EF1000-memory.dmp

Filesize
452KB

Download
memory/568-117-0x0000000005480000-0x0000000005481000-memory.dmp

Filesize
4KB

Download
memory/568-118-0x0000000005020000-0x0000000005021000-memory.dmp

Filesize
4KB

Download
memory/568-119-0x00000000050C0000-0x00000000050C1000-memory.dmp

Filesize
4KB

Download
memory/568-114-0x00000000005F0000-0x00000000005F1000-memory.dmp

Filesize
4KB

Download
memory/568-120-0x0000000004E70000-0x0000000004E71000-memory.dmp

Filesize
4KB

Download
memory/888-138-0x00000000030F0000-0x00000000030F1000-memory.dmp

Filesize
4KB

Download
memory/2152-132-0x00000000014A0000-0x00000000014A2000-memory.dmp

Filesize
8KB

Download
memory/2792-122-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2804-143-0x0000000002930000-0x0000000002932000-memory.dmp

Filesize
8KB

Download
memory/3688-128-0x00000000025F0000-0x00000000025F1000-memory.dmp

Filesize
4KB

Download
memory/3688-126-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download