a310logger | 7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce

General

Target

1c995e8f_by_Libranalysis.exe
Size

868KB
MD5

1c995e8f4af85982a6bd26019369ef62
SHA1

9cd0055ad7599440f852329e4ba3f2e6d7b76565
SHA256

7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce
SHA512

73a454656de2dbe2c402b750b9961f43184fa5c9670eba561bbf3d3126917fa3ee3f74e20c0f676d4536613ee3840fa63bda9f8ba12af2d1f1293938342aaf31

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
behavioral2/memory/1172-129-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral2/memory/1172-130-0x0000000000412452-mapping.dmp	family_stormkitty

A310logger Executable 4 IoCs

resource	yara_rule
behavioral2/memory/1172-129-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral2/memory/1172-130-0x0000000000412452-mapping.dmp	a310logger
behavioral2/files/0x000200000001ab95-133.dat	a310logger
behavioral2/files/0x000200000001ab95-134.dat	a310logger

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral2/memory/3680-120-0x0000000005410000-0x0000000005415000-memory.dmp	CustAttr

Executes dropped EXE 1 IoCs

pid	Process
3776	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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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 2 IoCs

description	pid	Process	procid_target
PID 3680 set thread context of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 4076 set thread context of 1172	4076	1c995e8f_by_Libranalysis.exe	80

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
3776	MZ.exe
3776	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4076	1c995e8f_by_Libranalysis.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	InstallUtil.exe
Token: SeDebugPrivilege	3776	MZ.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4076	1c995e8f_by_Libranalysis.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4076	1c995e8f_by_Libranalysis.exe
4076	1c995e8f_by_Libranalysis.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 3680 wrote to memory of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 3680 wrote to memory of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 3680 wrote to memory of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 3680 wrote to memory of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 3680 wrote to memory of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 3680 wrote to memory of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 3680 wrote to memory of 4076	3680	1c995e8f_by_Libranalysis.exe	79
PID 4076 wrote to memory of 1172	4076	1c995e8f_by_Libranalysis.exe	80
PID 4076 wrote to memory of 1172	4076	1c995e8f_by_Libranalysis.exe	80
PID 4076 wrote to memory of 1172	4076	1c995e8f_by_Libranalysis.exe	80
PID 4076 wrote to memory of 1172	4076	1c995e8f_by_Libranalysis.exe	80
PID 4076 wrote to memory of 1172	4076	1c995e8f_by_Libranalysis.exe	80
PID 4076 wrote to memory of 1172	4076	1c995e8f_by_Libranalysis.exe	80
PID 4076 wrote to memory of 1172	4076	1c995e8f_by_Libranalysis.exe	80
PID 4076 wrote to memory of 1172	4076	1c995e8f_by_Libranalysis.exe	80
PID 1172 wrote to memory of 3776	1172	InstallUtil.exe	82
PID 1172 wrote to memory of 3776	1172	InstallUtil.exe	82

C:\Users\Admin\AppData\Local\Temp\1c995e8f_by_Libranalysis.exe
"C:\Users\Admin\AppData\Local\Temp\1c995e8f_by_Libranalysis.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3680
- C:\Users\Admin\AppData\Local\Temp\1c995e8f_by_Libranalysis.exe
  "C:\Users\Admin\AppData\Local\Temp\1c995e8f_by_Libranalysis.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4076
- - 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:1172
  - - 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:3776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1172-129-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1172-131-0x0000000003370000-0x0000000003371000-memory.dmp

Filesize
4KB

Download
memory/3680-119-0x0000000005400000-0x0000000005401000-memory.dmp

Filesize
4KB

Download
memory/3680-117-0x0000000005420000-0x0000000005421000-memory.dmp

Filesize
4KB

Download
memory/3680-122-0x0000000006130000-0x00000000061E2000-memory.dmp

Filesize
712KB

Download
memory/3680-123-0x00000000086E0000-0x0000000008755000-memory.dmp

Filesize
468KB

Download
memory/3680-116-0x0000000005A30000-0x0000000005A31000-memory.dmp

Filesize
4KB

Download
memory/3680-121-0x0000000005530000-0x0000000005A2E000-memory.dmp

Filesize
5.0MB

Download
memory/3680-118-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/3680-120-0x0000000005410000-0x0000000005415000-memory.dmp

Filesize
20KB

Download
memory/3680-114-0x0000000000B10000-0x0000000000B11000-memory.dmp

Filesize
4KB

Download
memory/3776-135-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/4076-128-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4076-124-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

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