guloader | 87914002d7ad26ca003996e4519a72bf4768ce5557cc8b591228de2c21393432

General

Target

Zamówienie na sprzęt.exe
Size

742KB
MD5

20a7c8112e5876adb90550f2fe0c78de
SHA1

1671082a2bf6cb091364ac4c8520c20aefc7cb8a
SHA256

702ceddaa83348514f637a06c19a476999b3a391a7de4fc49efe9fa368fcaa62
SHA512

1fe26d1e00a156d7c73acc7cdc62c9f5e7a822099d70ce8f0fc7155a5d2215ba353aac1caff9de3b823e45e0ecac879ede1c7a36ceea9b0e6d5f5d3b52f3019a
SSDEEP

12288:EnPdlO7MQiTrKAEYNKoFfwtJr1zLlKsc6NdELyMdj2XHyQs2NMh4vp4zaS7+:UPdliMQsDR8o5C7zLrPELZ23yQRN1Gb7

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot8118244750:AAHW9qN4qIFfpwTeDTPtn27qicq6nUcMbog/sendMessage?chat_id=1767942457

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger

Loads dropped DLL 2 IoCs

pid	Process
2604	Zamówienie na sprzęt.exe
2604	Zamówienie na sprzęt.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zamówienie na sprzęt.exe
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zamówienie na sprzęt.exe
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zamówienie na sprzęt.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
22	drive.google.com
23	drive.google.com

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
42	reallyfreegeoip.org
43	reallyfreegeoip.org
38	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3608	Zamówienie na sprzęt.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2604	Zamówienie na sprzęt.exe
3608	Zamówienie na sprzęt.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	Zamówienie na sprzęt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Zamówienie na sprzęt.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3608	Zamówienie na sprzęt.exe
3608	Zamówienie na sprzęt.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2604	Zamówienie na sprzęt.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3608	Zamówienie na sprzęt.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 3608	2604	Zamówienie na sprzęt.exe	88
PID 2604 wrote to memory of 3608	2604	Zamówienie na sprzęt.exe	88
PID 2604 wrote to memory of 3608	2604	Zamówienie na sprzęt.exe	88
PID 2604 wrote to memory of 3608	2604	Zamówienie na sprzęt.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zamówienie na sprzęt.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zamówienie na sprzęt.exe

C:\Users\Admin\AppData\Local\Temp\Zamówienie na sprzęt.exe
"C:\Users\Admin\AppData\Local\Temp\Zamówienie na sprzęt.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Users\Admin\AppData\Local\Temp\Zamówienie na sprzęt.exe
  "C:\Users\Admin\AppData\Local\Temp\Zamówienie na sprzęt.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3608

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

Browser Information Discovery

1

T1217

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsz9D1D.tmp\System.dll

Filesize
12KB

MD5
4add245d4ba34b04f213409bfe504c07

SHA1
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09

SHA256
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706

SHA512
1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

Download Submit
memory/2604-21-0x0000000005210000-0x0000000005FC0000-memory.dmp

Filesize
13.7MB

Download
memory/2604-22-0x0000000077531000-0x0000000077651000-memory.dmp

Filesize
1.1MB

Download
memory/2604-23-0x0000000074185000-0x0000000074186000-memory.dmp

Filesize
4KB

Download
memory/2604-25-0x0000000005210000-0x0000000005FC0000-memory.dmp

Filesize
13.7MB

Download
memory/3608-26-0x00000000016D0000-0x0000000002480000-memory.dmp

Filesize
13.7MB

Download
memory/3608-27-0x00000000775B8000-0x00000000775B9000-memory.dmp

Filesize
4KB

Download
memory/3608-28-0x00000000775D5000-0x00000000775D6000-memory.dmp

Filesize
4KB

Download
memory/3608-29-0x00000000016D0000-0x0000000002480000-memory.dmp

Filesize
13.7MB

Download
memory/3608-43-0x0000000077531000-0x0000000077651000-memory.dmp

Filesize
1.1MB

Download
memory/3608-42-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/3608-44-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/3608-45-0x00000000016D0000-0x0000000002480000-memory.dmp

Filesize
13.7MB

Download
memory/3608-46-0x0000000000470000-0x00000000004BA000-memory.dmp

Filesize
296KB

Download
memory/3608-47-0x0000000035270000-0x0000000035814000-memory.dmp

Filesize
5.6MB

Download
memory/3608-48-0x0000000035820000-0x00000000358BC000-memory.dmp

Filesize
624KB

Download
memory/3608-51-0x0000000035DE0000-0x0000000035FA2000-memory.dmp

Filesize
1.8MB

Download
memory/3608-52-0x0000000035FB0000-0x0000000036000000-memory.dmp

Filesize
320KB

Download
memory/3608-54-0x0000000032C10000-0x0000000032CA2000-memory.dmp

Filesize
584KB

Download
memory/3608-55-0x0000000032CD0000-0x0000000032CDA000-memory.dmp

Filesize
40KB

Download

Analysis

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