a310logger | 584a847c7e779a2951440152072b93e4ecccb1b86148a2e289c2ccb86962ac34

General

Target

41c3b05debb26645393a5c7253f28e77.exe
Size

594KB
MD5

41c3b05debb26645393a5c7253f28e77
SHA1

e1e8fcfdc15c34f7e1ce974e4278e79879fe86ae
SHA256

584a847c7e779a2951440152072b93e4ecccb1b86148a2e289c2ccb86962ac34
SHA512

c24771dee7d0e7651b2530623332c28b434da98cc3dbadf3af597225d71a9f2c699bd65f9155424ded2e3902ca1a2f63bc234345b10db9f06e724e9d90ec8351
SSDEEP

12288:SfX25LrCxNuYlc+zakllH7RaR00QHtHx6fsZAvantxK13v6pcL4cUikDXR6sVc+i:SfX25LrCxNuYlcSXt0ehkASIN3CTmv+

Score

10^/10

a310logger stormkitty collection 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

Processes:

resource	yara_rule
behavioral2/memory/1992-8-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral2/memory/332-37-0x0000000001240000-0x0000000001250000-memory.dmp	family_stormkitty

A310logger Executable 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1992-8-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe	a310logger
behavioral2/memory/1028-24-0x00000000019E0000-0x00000000019F0000-memory.dmp	a310logger
behavioral2/memory/332-37-0x0000000001240000-0x0000000001250000-memory.dmp	a310logger

Executes dropped EXE 2 IoCs

Processes:

MZ.exeMZ.exe

pid process

1028 MZ.exe
3024 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 2 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

pid	process
1028	MZ.exe
3024	MZ.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exeInstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\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.

Processes:

flow ioc

22 icanhazip.com
Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.

flow	ioc
22	icanhazip.com

Suspicious use of SetThreadContext 4 IoCs

Processes:

41c3b05debb26645393a5c7253f28e77.exe41c3b05debb26645393a5c7253f28e77.exe

description	pid	process	target process
PID 3924 set thread context of 1236	3924	41c3b05debb26645393a5c7253f28e77.exe	41c3b05debb26645393a5c7253f28e77.exe
PID 1236 set thread context of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 set thread context of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 set thread context of 4748	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe

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

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1228 3924 WerFault.exe 41c3b05debb26645393a5c7253f28e77.exe
2664 4748 WerFault.exe InstallUtil.exe

pid	pid_target	process	target process
1228	3924	WerFault.exe	41c3b05debb26645393a5c7253f28e77.exe
2664	4748	WerFault.exe	InstallUtil.exe

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

Processes:

InstallUtil.exeInstallUtil.exe

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 8 IoCs

Processes:

MZ.exeMZ.exe

pid process

1028 MZ.exe
1028 MZ.exe
1028 MZ.exe
1028 MZ.exe
3024 MZ.exe
3024 MZ.exe
3024 MZ.exe
3024 MZ.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

41c3b05debb26645393a5c7253f28e77.exe

pid process

1236 41c3b05debb26645393a5c7253f28e77.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

41c3b05debb26645393a5c7253f28e77.exe

pid process

3924 41c3b05debb26645393a5c7253f28e77.exe

pid	process
1028	MZ.exe
1028	MZ.exe
1028	MZ.exe
1028	MZ.exe
3024	MZ.exe
3024	MZ.exe
3024	MZ.exe
3024	MZ.exe

pid	process
1236	41c3b05debb26645393a5c7253f28e77.exe

pid	process
3924	41c3b05debb26645393a5c7253f28e77.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

InstallUtil.exeMZ.exeInstallUtil.exeMZ.exe

description	pid	process
Token: SeDebugPrivilege	1992	InstallUtil.exe
Token: SeDebugPrivilege	1028	MZ.exe
Token: SeDebugPrivilege	332	InstallUtil.exe
Token: SeDebugPrivilege	3024	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

41c3b05debb26645393a5c7253f28e77.exe

pid process

1236 41c3b05debb26645393a5c7253f28e77.exe
1236 41c3b05debb26645393a5c7253f28e77.exe

pid	process
1236	41c3b05debb26645393a5c7253f28e77.exe
1236	41c3b05debb26645393a5c7253f28e77.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

41c3b05debb26645393a5c7253f28e77.exe41c3b05debb26645393a5c7253f28e77.exeInstallUtil.exeInstallUtil.exe

description	pid	process	target process
PID 3924 wrote to memory of 1236	3924	41c3b05debb26645393a5c7253f28e77.exe	41c3b05debb26645393a5c7253f28e77.exe
PID 3924 wrote to memory of 1236	3924	41c3b05debb26645393a5c7253f28e77.exe	41c3b05debb26645393a5c7253f28e77.exe
PID 3924 wrote to memory of 1236	3924	41c3b05debb26645393a5c7253f28e77.exe	41c3b05debb26645393a5c7253f28e77.exe
PID 3924 wrote to memory of 1236	3924	41c3b05debb26645393a5c7253f28e77.exe	41c3b05debb26645393a5c7253f28e77.exe
PID 1236 wrote to memory of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 1992	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1992 wrote to memory of 1028	1992	InstallUtil.exe	MZ.exe
PID 1992 wrote to memory of 1028	1992	InstallUtil.exe	MZ.exe
PID 1236 wrote to memory of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 332	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 332 wrote to memory of 3024	332	InstallUtil.exe	MZ.exe
PID 332 wrote to memory of 3024	332	InstallUtil.exe	MZ.exe
PID 1236 wrote to memory of 4748	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 4748	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 4748	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe
PID 1236 wrote to memory of 4748	1236	41c3b05debb26645393a5c7253f28e77.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\41c3b05debb26645393a5c7253f28e77.exe
"C:\Users\Admin\AppData\Local\Temp\41c3b05debb26645393a5c7253f28e77.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3924

C:\Users\Admin\AppData\Local\Temp\41c3b05debb26645393a5c7253f28e77.exe
"C:\Users\Admin\AppData\Local\Temp\41c3b05debb26645393a5c7253f28e77.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1236

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
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992

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:1028

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
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:332

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:3024

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
3⤵
PID:4748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 80
4⤵
- Program crash
PID:2664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 368
2⤵
- Program crash
PID:1228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3924 -ip 3924
1⤵
PID:3712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4748 -ip 4748
1⤵
PID:3884

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\MZ.exe.log
Filesize
128B

MD5
3d238ac6dd6710907edf2ad7893a0ed2

SHA1
b07aaeeb31bdc6e94097a254be088b092dc1fb68

SHA256
02d215d5b6ea166e6c4c4669547cbadecbb427d5baf394fbffc7ef374a967501

SHA512
c358aa68303aa99ebc019014b4c1fc2fbfa98733f1ea863bf78ca2b877dc5c610121115432d96504df9e43bdda637b067359b07228b6f129bc5ec9a01ed3ee24

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\InstallUtil.exe.log
Filesize
496B

MD5
5370d1dff94d27a9a6cfab002a5c444b

SHA1
fecadd9e884c57822ebeae897a3989c0e678fd1a

SHA256
0ddb4ec9a919c3566a4ab48ce605f24816e6fb2efdd6e4070a54a1f5912ec946

SHA512
67a3787e49e7d8ea23b3e1766639b36e685cf404042bc270f5c43dc0b0f50623778cb98c013577b3a0a3b425b608ff4e944e29df3725425ce6383759fe7534eb

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
Filesize
20KB

MD5
1bad0cbd09b05a21157d8255dc801778

SHA1
ff284bba12f011b72e20d4c9537d6c455cdbf228

SHA256
218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

SHA512
4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

Download Submit
memory/332-55-0x0000000073E30000-0x00000000743E1000-memory.dmp

Filesize
5.7MB

Download
memory/332-38-0x0000000073E30000-0x00000000743E1000-memory.dmp

Filesize
5.7MB

Download
memory/332-37-0x0000000001240000-0x0000000001250000-memory.dmp

Filesize
64KB

Download
memory/332-36-0x0000000073E30000-0x00000000743E1000-memory.dmp

Filesize
5.7MB

Download
memory/1028-29-0x00007FFBE86F0000-0x00007FFBE9091000-memory.dmp

Filesize
9.6MB

Download
memory/1028-28-0x00007FFBE86F0000-0x00007FFBE9091000-memory.dmp

Filesize
9.6MB

Download
memory/1028-23-0x00007FFBE86F0000-0x00007FFBE9091000-memory.dmp

Filesize
9.6MB

Download
memory/1028-24-0x00000000019E0000-0x00000000019F0000-memory.dmp

Filesize
64KB

Download
memory/1236-3-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1236-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1236-5-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1992-10-0x0000000001880000-0x0000000001890000-memory.dmp

Filesize
64KB

Download
memory/1992-31-0x0000000073C20000-0x00000000741D1000-memory.dmp

Filesize
5.7MB

Download
memory/1992-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1992-9-0x0000000073C20000-0x00000000741D1000-memory.dmp

Filesize
5.7MB

Download
memory/1992-11-0x0000000073C20000-0x00000000741D1000-memory.dmp

Filesize
5.7MB

Download
memory/3024-52-0x0000000001400000-0x0000000001410000-memory.dmp

Filesize
64KB

Download
memory/3024-51-0x00007FFBE8160000-0x00007FFBE8B01000-memory.dmp

Filesize
9.6MB

Download
memory/3024-54-0x00007FFBE8160000-0x00007FFBE8B01000-memory.dmp

Filesize
9.6MB

Download
memory/3024-53-0x00007FFBE8160000-0x00007FFBE8B01000-memory.dmp

Filesize
9.6MB

Download
memory/3024-56-0x00007FFBE8160000-0x00007FFBE8B01000-memory.dmp

Filesize
9.6MB

Download
memory/3924-1-0x0000000000440000-0x0000000000540000-memory.dmp

Filesize
1024KB

Download
memory/3924-2-0x0000000000A60000-0x0000000000A62000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads