a310logger | 038b5ec90419cc38dcfc837ec372f5abbf49b3903501c11b5e3ee8bffc749755

General

Target

TT000900_989990.exe
Size

894KB
MD5

f343cb0399d345b279de6d50d99f4be9
SHA1

6983c9557f3ab79b9a78f069599080d6988fd0c1
SHA256

451e257b591ad6beacf73a6ff2dc67942fa68cdd453da2784e084d790e66d3df
SHA512

109ab328298c9945aafabe0c306b4ba4534171e40d7ef966ed5e5e14fcc4a87d3ebbc3ff4800fd42fcc78c2d9211b37d37461538f8c79ee3e79fdd5fc429fb19
SSDEEP

12288:BjO5fIDWxzzaaIUGQ44wgdPkp7XLPtdnTJKQiP4Uh+4ryD5exR0xknr5eVLdCmfq:BCO7oUsP2myXx+iKvrG

Score

10^/10

a310logger stormkitty collection discovery spyware stealer

Malware Config

Signatures

A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
stealer spyware a310logger
A310logger family
a310logger
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral3/memory/2412-16-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

A310logger Executable 3 IoCs

resource	yara_rule
behavioral3/memory/2412-16-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral3/files/0x0028000000046119-24.dat	a310logger
behavioral3/memory/4376-34-0x0000000001230000-0x0000000001240000-memory.dmp	a310logger

Executes dropped EXE 1 IoCs

pid	Process
4376	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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1581648047-808845429-2272123689-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1581648047-808845429-2272123689-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1581648047-808845429-2272123689-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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
15	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 4428 set thread context of 1940	4428	TT000900_989990.exe	82
PID 1940 set thread context of 2412	1940	TT000900_989990.exe	83
PID 1940 set thread context of 4972	1940	TT000900_989990.exe	93
PID 1940 set thread context of 1204	1940	TT000900_989990.exe	97

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3780	4972	WerFault.exe	93
3092	1204	WerFault.exe	97

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TT000900_989990.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TT000900_989990.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

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
4376	MZ.exe
4376	MZ.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1940	TT000900_989990.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2412	InstallUtil.exe
Token: SeDebugPrivilege	4376	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1940	TT000900_989990.exe
1940	TT000900_989990.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4428 wrote to memory of 1940	4428	TT000900_989990.exe	82
PID 4428 wrote to memory of 1940	4428	TT000900_989990.exe	82
PID 4428 wrote to memory of 1940	4428	TT000900_989990.exe	82
PID 4428 wrote to memory of 1940	4428	TT000900_989990.exe	82
PID 4428 wrote to memory of 1940	4428	TT000900_989990.exe	82
PID 4428 wrote to memory of 1940	4428	TT000900_989990.exe	82
PID 4428 wrote to memory of 1940	4428	TT000900_989990.exe	82
PID 4428 wrote to memory of 1940	4428	TT000900_989990.exe	82
PID 1940 wrote to memory of 2412	1940	TT000900_989990.exe	83
PID 1940 wrote to memory of 2412	1940	TT000900_989990.exe	83
PID 1940 wrote to memory of 2412	1940	TT000900_989990.exe	83
PID 1940 wrote to memory of 2412	1940	TT000900_989990.exe	83
PID 1940 wrote to memory of 2412	1940	TT000900_989990.exe	83
PID 1940 wrote to memory of 2412	1940	TT000900_989990.exe	83
PID 1940 wrote to memory of 2412	1940	TT000900_989990.exe	83
PID 1940 wrote to memory of 2412	1940	TT000900_989990.exe	83
PID 2412 wrote to memory of 4376	2412	InstallUtil.exe	88
PID 2412 wrote to memory of 4376	2412	InstallUtil.exe	88
PID 1940 wrote to memory of 4972	1940	TT000900_989990.exe	93
PID 1940 wrote to memory of 4972	1940	TT000900_989990.exe	93
PID 1940 wrote to memory of 4972	1940	TT000900_989990.exe	93
PID 1940 wrote to memory of 4972	1940	TT000900_989990.exe	93
PID 1940 wrote to memory of 1204	1940	TT000900_989990.exe	97
PID 1940 wrote to memory of 1204	1940	TT000900_989990.exe	97
PID 1940 wrote to memory of 1204	1940	TT000900_989990.exe	97
PID 1940 wrote to memory of 1204	1940	TT000900_989990.exe	97

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1581648047-808845429-2272123689-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1581648047-808845429-2272123689-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\TT000900_989990.exe
"C:\Users\Admin\AppData\Local\Temp\TT000900_989990.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Users\Admin\AppData\Local\Temp\TT000900_989990.exe
  "C:\Users\Admin\AppData\Local\Temp\TT000900_989990.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    - outlook_office_path
    - outlook_win_path
    PID:2412
  - - 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:4376
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    PID:4972
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 80
      4⤵
      Program crash
      PID:3780
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
    3⤵
    PID:1204
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 80
      4⤵
      Program crash
      PID:3092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 4972 -ip 4972
1⤵
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1204 -ip 1204
1⤵
PID:2972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe

Filesize
20KB

MD5
1bad0cbd09b05a21157d8255dc801778

SHA1
ff284bba12f011b72e20d4c9537d6c455cdbf228

SHA256
218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

SHA512
4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

Download Submit
memory/1940-10-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1940-39-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1940-13-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2412-19-0x0000000074260000-0x0000000074811000-memory.dmp

Filesize
5.7MB

Download
memory/2412-16-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2412-37-0x0000000074260000-0x0000000074811000-memory.dmp

Filesize
5.7MB

Download
memory/2412-18-0x0000000074260000-0x0000000074811000-memory.dmp

Filesize
5.7MB

Download
memory/2412-17-0x0000000074262000-0x0000000074263000-memory.dmp

Filesize
4KB

Download
memory/4376-34-0x0000000001230000-0x0000000001240000-memory.dmp

Filesize
64KB

Download
memory/4428-4-0x0000000005440000-0x000000000545E000-memory.dmp

Filesize
120KB

Download
memory/4428-3-0x00000000747C0000-0x0000000074F71000-memory.dmp

Filesize
7.7MB

Download
memory/4428-9-0x00000000057D0000-0x00000000057E6000-memory.dmp

Filesize
88KB

Download
memory/4428-8-0x00000000058A0000-0x000000000593C000-memory.dmp

Filesize
624KB

Download
memory/4428-7-0x0000000005800000-0x0000000005892000-memory.dmp

Filesize
584KB

Download
memory/4428-0-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download
memory/4428-2-0x00000000054C0000-0x0000000005536000-memory.dmp

Filesize
472KB

Download
memory/4428-5-0x0000000005580000-0x00000000055F8000-memory.dmp

Filesize
480KB

Download
memory/4428-6-0x0000000005CD0000-0x0000000006276000-memory.dmp

Filesize
5.6MB

Download
memory/4428-38-0x00000000747C0000-0x0000000074F71000-memory.dmp

Filesize
7.7MB

Download
memory/4428-1-0x0000000000A10000-0x0000000000AF4000-memory.dmp

Filesize
912KB

Download

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Analysis

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