guloader | fff7b49756b2b82efe6e3fa1544215dc4fd3ddd12869ad26f1cccc21a88c2079

General

Target

30079615-AylkzetRaporu.exe
Size

727KB
MD5

7f252035c3ae6876c036a4c34c7c64c9
SHA1

1ddb926594ba1df0f1aad90902dac8b32e2395f9
SHA256

fff7b49756b2b82efe6e3fa1544215dc4fd3ddd12869ad26f1cccc21a88c2079
SHA512

9f281c7d15d782b190f9b79d57b44eef4061a0e5beb5c1848f4fa0a13750ec33e85230235be40f655c879c84afc451cef1a1079309cf3dc37a3b96784e0a2173
SSDEEP

12288:jnPdlkh3ky/FJsTpew9f2A6swE7SXxJnKj2Hyi6i8XWDqCVHb9RvjOV4RqQQKY6u:7PdlfqUTVf2APwEevk2Hh6Um0v64RVN6

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7558532911:AAGepJ1c9JoLg9C0OOA7u5vk4MPYoO5ezUQ/sendMessage?chat_id=7573818489

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
63	2776	Process not Found

Loads dropped DLL 2 IoCs

pid	Process
4516	30079615-AylkzetRaporu.exe
4516	30079615-AylkzetRaporu.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-1-5-21-3311063739-2594902809-44604183-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	30079615-AylkzetRaporu.exe
Key opened	\REGISTRY\USER\S-1-5-21-3311063739-2594902809-44604183-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	30079615-AylkzetRaporu.exe
Key opened	\REGISTRY\USER\S-1-5-21-3311063739-2594902809-44604183-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	30079615-AylkzetRaporu.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
17	drive.google.com
19	drive.google.com
42	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
47	checkip.dyndns.org
52	reallyfreegeoip.org
53	reallyfreegeoip.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3020	30079615-AylkzetRaporu.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4516	30079615-AylkzetRaporu.exe
3020	30079615-AylkzetRaporu.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 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	30079615-AylkzetRaporu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	30079615-AylkzetRaporu.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2420	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3020	30079615-AylkzetRaporu.exe
3020	30079615-AylkzetRaporu.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4516	30079615-AylkzetRaporu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	30079615-AylkzetRaporu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 3020	4516	30079615-AylkzetRaporu.exe	90
PID 4516 wrote to memory of 3020	4516	30079615-AylkzetRaporu.exe	90
PID 4516 wrote to memory of 3020	4516	30079615-AylkzetRaporu.exe	90
PID 4516 wrote to memory of 3020	4516	30079615-AylkzetRaporu.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3311063739-2594902809-44604183-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	30079615-AylkzetRaporu.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3311063739-2594902809-44604183-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	30079615-AylkzetRaporu.exe

C:\Users\Admin\AppData\Local\Temp\30079615-AylkzetRaporu.exe
"C:\Users\Admin\AppData\Local\Temp\30079615-AylkzetRaporu.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Users\Admin\AppData\Local\Temp\30079615-AylkzetRaporu.exe
  "C:\Users\Admin\AppData\Local\Temp\30079615-AylkzetRaporu.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:3020

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTgwNTAyMzcwIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2420

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

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\nsa87FE.tmp\System.dll

Filesize
12KB

MD5
4add245d4ba34b04f213409bfe504c07

SHA1
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09

SHA256
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706

SHA512
1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

Download Submit
memory/3020-46-0x00000000016D0000-0x00000000052C4000-memory.dmp

Filesize
60.0MB

Download
memory/3020-23-0x00000000016D0000-0x00000000052C4000-memory.dmp

Filesize
60.0MB

Download
memory/3020-48-0x0000000000470000-0x00000000004BA000-memory.dmp

Filesize
296KB

Download
memory/3020-24-0x0000000076EC1000-0x0000000076FE1000-memory.dmp

Filesize
1.1MB

Download
memory/3020-25-0x0000000076F48000-0x0000000076F49000-memory.dmp

Filesize
4KB

Download
memory/3020-26-0x0000000076F65000-0x0000000076F66000-memory.dmp

Filesize
4KB

Download
memory/3020-27-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/3020-28-0x0000000076EC1000-0x0000000076FE1000-memory.dmp

Filesize
1.1MB

Download
memory/3020-49-0x0000000038140000-0x00000000386E4000-memory.dmp

Filesize
5.6MB

Download
memory/3020-47-0x000000007184E000-0x000000007184F000-memory.dmp

Filesize
4KB

Download
memory/3020-63-0x00000000393E0000-0x00000000393EA000-memory.dmp

Filesize
40KB

Download
memory/3020-62-0x00000000392F0000-0x0000000039382000-memory.dmp

Filesize
584KB

Download
memory/3020-45-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/3020-50-0x0000000037FE0000-0x000000003807C000-memory.dmp

Filesize
624KB

Download
memory/3020-51-0x0000000071840000-0x0000000071FF0000-memory.dmp

Filesize
7.7MB

Download
memory/3020-54-0x000000007184E000-0x000000007184F000-memory.dmp

Filesize
4KB

Download
memory/3020-55-0x0000000071840000-0x0000000071FF0000-memory.dmp

Filesize
7.7MB

Download
memory/3020-58-0x0000000038BB0000-0x0000000038D72000-memory.dmp

Filesize
1.8MB

Download
memory/3020-59-0x0000000035840000-0x0000000035890000-memory.dmp

Filesize
320KB

Download
memory/3020-60-0x0000000038D80000-0x00000000392AC000-memory.dmp

Filesize
5.2MB

Download
memory/4516-22-0x00000000735E5000-0x00000000735E6000-memory.dmp

Filesize
4KB

Download
memory/4516-21-0x0000000076EC1000-0x0000000076FE1000-memory.dmp

Filesize
1.1MB

Download

Analysis

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