a310logger | 39cd5c2dd4929b254d9ef4bf758ce2401e49fd5da55ae97ad1939db2cc3acdce

General

Target

000100049000TK.exe
Size

955KB
MD5

113f59d0bd4384226e40c17bf899935d
SHA1

4bf159402cefe87d328182fee0e82297b1fff5c5
SHA256

b77f7c59b071608e552cf6ccae6f9e0e3f6790d83ec7d163713b0eedc6eccf25
SHA512

d8e3717916475013e8ec8cc5a5fef303c4467fe66b944f1031ee73ad964a6a699d3c872a305173ac7565e5000ade605e8cef1cbe3ca9438ac1f85993a69a3b78
SSDEEP

12288:gFrXv++Cjkemhes5D9Bq1U50kb9zU9uRyM3/CsUABjFG3CiEN4/PosRbOt/kUQQj:gFrpCDsz2SCyiJA+O9ENGZOMb

Score

10^/10

a310logger stormkitty zgrat collection rat spyware stealer

Malware Config

Signatures

A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
stealer spyware a310logger

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral2/memory/1576-9-0x0000000005620000-0x0000000005636000-memory.dmp	family_zgrat_v1

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/2960-17-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

A310logger Executable 2 IoCs

resource	yara_rule
behavioral2/memory/2960-17-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral2/memory/1932-33-0x0000000000BC0000-0x0000000000BD0000-memory.dmp	a310logger

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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

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
21	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 1576 set thread context of 2784	1576	000100049000TK.exe	91
PID 2784 set thread context of 2960	2784	000100049000TK.exe	90

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process
2552	1092	WerFault.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2784	000100049000TK.exe
2784	000100049000TK.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 2784	1576	000100049000TK.exe	91
PID 1576 wrote to memory of 2784	1576	000100049000TK.exe	91
PID 1576 wrote to memory of 2784	1576	000100049000TK.exe	91
PID 1576 wrote to memory of 2784	1576	000100049000TK.exe	91
PID 1576 wrote to memory of 2784	1576	000100049000TK.exe	91
PID 1576 wrote to memory of 2784	1576	000100049000TK.exe	91
PID 1576 wrote to memory of 2784	1576	000100049000TK.exe	91
PID 1576 wrote to memory of 2784	1576	000100049000TK.exe	91
PID 2784 wrote to memory of 2960	2784	000100049000TK.exe	90
PID 2784 wrote to memory of 2960	2784	000100049000TK.exe	90
PID 2784 wrote to memory of 2960	2784	000100049000TK.exe	90
PID 2784 wrote to memory of 2960	2784	000100049000TK.exe	90
PID 2784 wrote to memory of 2960	2784	000100049000TK.exe	90
PID 2784 wrote to memory of 2960	2784	000100049000TK.exe	90
PID 2784 wrote to memory of 2960	2784	000100049000TK.exe	90
PID 2784 wrote to memory of 2960	2784	000100049000TK.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe
"C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe
  "C:\Users\Admin\AppData\Local\Temp\000100049000TK.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    PID:2792
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
      4⤵
      PID:220
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    PID:1092

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
1⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:2960
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
  2⤵
  PID:1932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1092 -ip 1092
1⤵
PID:3556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1092 -s 80
1⤵
- Program crash
PID:2552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/220-62-0x00007FFDCCFD0000-0x00007FFDCD971000-memory.dmp

Filesize
9.6MB

Download
memory/220-61-0x00007FFDCCFD0000-0x00007FFDCD971000-memory.dmp

Filesize
9.6MB

Download
memory/1576-5-0x00000000056A0000-0x000000000573C000-memory.dmp

Filesize
624KB

Download
memory/1576-3-0x00000000054E0000-0x0000000005572000-memory.dmp

Filesize
584KB

Download
memory/1576-4-0x0000000005580000-0x00000000055F6000-memory.dmp

Filesize
472KB

Download
memory/1576-6-0x0000000005490000-0x00000000054A0000-memory.dmp

Filesize
64KB

Download
memory/1576-1-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/1576-7-0x00000000054C0000-0x00000000054DE000-memory.dmp

Filesize
120KB

Download
memory/1576-8-0x0000000005770000-0x00000000057E8000-memory.dmp

Filesize
480KB

Download
memory/1576-9-0x0000000005620000-0x0000000005636000-memory.dmp

Filesize
88KB

Download
memory/1576-2-0x00000000059B0000-0x0000000005F54000-memory.dmp

Filesize
5.6MB

Download
memory/1576-16-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/1576-0-0x00000000009E0000-0x0000000000AD4000-memory.dmp

Filesize
976KB

Download
memory/1932-32-0x00007FFDCCE60000-0x00007FFDCD801000-memory.dmp

Filesize
9.6MB

Download
memory/1932-38-0x00007FFDCCE60000-0x00007FFDCD801000-memory.dmp

Filesize
9.6MB

Download
memory/1932-42-0x00007FFDCCE60000-0x00007FFDCD801000-memory.dmp

Filesize
9.6MB

Download
memory/1932-37-0x00007FFDCCE60000-0x00007FFDCD801000-memory.dmp

Filesize
9.6MB

Download
memory/1932-33-0x0000000000BC0000-0x0000000000BD0000-memory.dmp

Filesize
64KB

Download
memory/2784-41-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2784-10-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2784-13-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2792-46-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-48-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-47-0x0000000001690000-0x00000000016A0000-memory.dmp

Filesize
64KB

Download
memory/2792-63-0x0000000074B20000-0x00000000750D1000-memory.dmp

Filesize
5.7MB

Download
memory/2960-40-0x0000000074E10000-0x00000000753C1000-memory.dmp

Filesize
5.7MB

Download
memory/2960-20-0x00000000014D0000-0x00000000014E0000-memory.dmp

Filesize
64KB

Download
memory/2960-17-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2960-18-0x0000000074E10000-0x00000000753C1000-memory.dmp

Filesize
5.7MB

Download
memory/2960-19-0x0000000074E10000-0x00000000753C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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