guloader | 69a0042174fbffed7ac840081ec1d5618f2a70fe4d56078b98a1db06627f9eab

General

Target

????????.exe
Size

827KB
MD5

89b3b4723ea3983fc0f103eaf3093edc
SHA1

bb6fb38b57fd6694e0803d1de469f0a326e231f4
SHA256

69a0042174fbffed7ac840081ec1d5618f2a70fe4d56078b98a1db06627f9eab
SHA512

74befa13a84be96af3d7209113b11511dde96835c1a8a7a3453649cddf383d356a034632c58cc4778389495625fef0da894c03a75e5e04afdcf6eadc3dc947fa
SSDEEP

24576:UvYV0HT73uFztJXcrBbO3j8xa93BPapMMjC+eN3o67:POzaRcBbO3j193SLjC+ko

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.foodex.com.pk
Port:
587
Username:
[email protected]
Password:
wajahat1975

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
mail.foodex.com.pk
Port:
587
Username:
[email protected]
Password:
wajahat1975
Email To:
[email protected]

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 1 IoCs

pid	Process
4804	________.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	________.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	________.exe
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	________.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
23	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
816	________.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4804	________.exe
816	________.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4804 set thread context of 816	4804	________.exe	89

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	________.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	________.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
816	________.exe
816	________.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4804	________.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	816	________.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 816	4804	________.exe	89
PID 4804 wrote to memory of 816	4804	________.exe	89
PID 4804 wrote to memory of 816	4804	________.exe	89
PID 4804 wrote to memory of 816	4804	________.exe	89
PID 4804 wrote to memory of 816	4804	________.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	________.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	________.exe

C:\Users\Admin\AppData\Local\Temp\________.exe
"C:\Users\Admin\AppData\Local\Temp\________.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Users\Admin\AppData\Local\Temp\________.exe
  "C:\Users\Admin\AppData\Local\Temp\________.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:816

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsg886C.tmp\System.dll

Filesize
11KB

MD5
fc90dfb694d0e17b013d6f818bce41b0

SHA1
3243969886d640af3bfa442728b9f0dff9d5f5b0

SHA256
7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528

SHA512
324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

Download Submit
memory/816-24-0x00000000775B1000-0x00000000776D1000-memory.dmp

Filesize
1.1MB

Download
memory/816-32-0x0000000035E20000-0x0000000035E70000-memory.dmp

Filesize
320KB

Download
memory/816-26-0x0000000000480000-0x00000000004CA000-memory.dmp

Filesize
296KB

Download
memory/816-25-0x00000000724AE000-0x00000000724AF000-memory.dmp

Filesize
4KB

Download
memory/816-16-0x00000000016E0000-0x0000000002408000-memory.dmp

Filesize
13.2MB

Download
memory/816-17-0x0000000077638000-0x0000000077639000-memory.dmp

Filesize
4KB

Download
memory/816-18-0x0000000077655000-0x0000000077656000-memory.dmp

Filesize
4KB

Download
memory/816-22-0x00000000016E0000-0x0000000002408000-memory.dmp

Filesize
13.2MB

Download
memory/816-27-0x0000000035070000-0x0000000035614000-memory.dmp

Filesize
5.6MB

Download
memory/816-37-0x0000000036480000-0x0000000036512000-memory.dmp

Filesize
584KB

Download
memory/816-38-0x0000000036570000-0x000000003657A000-memory.dmp

Filesize
40KB

Download
memory/816-35-0x00000000724A0000-0x0000000072C50000-memory.dmp

Filesize
7.7MB

Download
memory/816-23-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/816-28-0x0000000035620000-0x00000000356BC000-memory.dmp

Filesize
624KB

Download
memory/816-29-0x00000000724A0000-0x0000000072C50000-memory.dmp

Filesize
7.7MB

Download
memory/816-31-0x0000000035C30000-0x0000000035DF2000-memory.dmp

Filesize
1.8MB

Download
memory/816-34-0x0000000035F00000-0x000000003642C000-memory.dmp

Filesize
5.2MB

Download
memory/816-33-0x00000000724AE000-0x00000000724AF000-memory.dmp

Filesize
4KB

Download
memory/4804-13-0x00000000775B1000-0x00000000776D1000-memory.dmp

Filesize
1.1MB

Download
memory/4804-14-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/4804-12-0x0000000003390000-0x00000000040B8000-memory.dmp

Filesize
13.2MB

Download
memory/4804-15-0x0000000003390000-0x00000000040B8000-memory.dmp

Filesize
13.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads