guloader | 82736a226e54e0314c4b4e9967ef45eddbfd6bdc4737bb7d0d6f23cf89bde33c

General

Target

JOSHHHHHH.exe
Size

705KB
MD5

54025d91662e8fa2169596cd35431cda
SHA1

40e1c2fbc4ef47373dfd69a8853c18e5095d4cf1
SHA256

82736a226e54e0314c4b4e9967ef45eddbfd6bdc4737bb7d0d6f23cf89bde33c
SHA512

edc43b538a0cc040d7ee53b360acbd424f3b03e3622b9b00b6975ce7543b4e2f2b7661452c444afb3ba45be9fa7fb70a624450ea862806d4234d53ec481f0bc7
SSDEEP

12288:fTkuHDduR2Bqj82jeCCixMncA+XPiHmcrsQKnsk2axTsZ:fTRogAfCBiSnc7XPiGc1qxTsZ

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7511877228:AAEfdtsXiYLhmN4YbL4GOCHPaqlvykB-alc/sendMessage?chat_id=7534008929

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

Processes:

JOSHHHHHH.exe

pid process

4964 JOSHHHHHH.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

pid	process
4964	JOSHHHHHH.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

JOSHHHHHH.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JOSHHHHHH.exe
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JOSHHHHHH.exe
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JOSHHHHHH.exe

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

Web Service
T1102

Processes:

flow ioc

29 drive.google.com
30 drive.google.com
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

44 checkip.dyndns.org
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

JOSHHHHHH.exe

pid process

2948 JOSHHHHHH.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

JOSHHHHHH.exeJOSHHHHHH.exe

pid process

4964 JOSHHHHHH.exe
2948 JOSHHHHHH.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

JOSHHHHHH.exe

description pid process target process

PID 4964 set thread context of 2948 4964 JOSHHHHHH.exe JOSHHHHHH.exe
Drops file in Windows directory 1 IoCs

Processes:

JOSHHHHHH.exe

description ioc process

File opened for modification C:\Windows\Kernelder\nyxis.ini JOSHHHHHH.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

flow	ioc
29	drive.google.com
30	drive.google.com

flow	ioc
44	checkip.dyndns.org

pid	process
2948	JOSHHHHHH.exe

pid	process
4964	JOSHHHHHH.exe
2948	JOSHHHHHH.exe

description	pid	process	target process
PID 4964 set thread context of 2948	4964	JOSHHHHHH.exe	JOSHHHHHH.exe

description	ioc	process
File opened for modification	C:\Windows\Kernelder\nyxis.ini	JOSHHHHHH.exe

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

Processes:

JOSHHHHHH.exeJOSHHHHHH.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JOSHHHHHH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JOSHHHHHH.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

JOSHHHHHH.exe

pid process

2948 JOSHHHHHH.exe
2948 JOSHHHHHH.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

JOSHHHHHH.exe

pid process

4964 JOSHHHHHH.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

JOSHHHHHH.exe

description pid process

Token: SeDebugPrivilege 2948 JOSHHHHHH.exe

pid	process
2948	JOSHHHHHH.exe
2948	JOSHHHHHH.exe

pid	process
4964	JOSHHHHHH.exe

description	pid	process
Token: SeDebugPrivilege	2948	JOSHHHHHH.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

JOSHHHHHH.exe

description	pid	process	target process
PID 4964 wrote to memory of 2948	4964	JOSHHHHHH.exe	JOSHHHHHH.exe
PID 4964 wrote to memory of 2948	4964	JOSHHHHHH.exe	JOSHHHHHH.exe
PID 4964 wrote to memory of 2948	4964	JOSHHHHHH.exe	JOSHHHHHH.exe
PID 4964 wrote to memory of 2948	4964	JOSHHHHHH.exe	JOSHHHHHH.exe
PID 4964 wrote to memory of 2948	4964	JOSHHHHHH.exe	JOSHHHHHH.exe

outlook_office_path 1 IoCs

Processes:

JOSHHHHHH.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JOSHHHHHH.exe

outlook_win_path 1 IoCs

Processes:

JOSHHHHHH.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JOSHHHHHH.exe

C:\Users\Admin\AppData\Local\Temp\JOSHHHHHH.exe
"C:\Users\Admin\AppData\Local\Temp\JOSHHHHHH.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\JOSHHHHHH.exe
  "C:\Users\Admin\AppData\Local\Temp\JOSHHHHHH.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:2948

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsg7D8D.tmp\System.dll

Filesize
11KB

MD5
75ed96254fbf894e42058062b4b4f0d1

SHA1
996503f1383b49021eb3427bc28d13b5bbd11977

SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

Download Submit
memory/2948-32-0x0000000035FD0000-0x0000000036574000-memory.dmp

Filesize
5.6MB

Download
memory/2948-34-0x0000000077541000-0x0000000077661000-memory.dmp

Filesize
1.1MB

Download
memory/2948-30-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/2948-31-0x0000000000480000-0x00000000004C8000-memory.dmp

Filesize
288KB

Download
memory/2948-13-0x00000000016E0000-0x000000000332F000-memory.dmp

Filesize
28.3MB

Download
memory/2948-14-0x00000000775C8000-0x00000000775C9000-memory.dmp

Filesize
4KB

Download
memory/2948-16-0x00000000775E5000-0x00000000775E6000-memory.dmp

Filesize
4KB

Download
memory/2948-15-0x00000000016E0000-0x000000000332F000-memory.dmp

Filesize
28.3MB

Download
memory/2948-40-0x0000000036DB0000-0x0000000036DBA000-memory.dmp

Filesize
40KB

Download
memory/2948-29-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/2948-39-0x0000000036CE0000-0x0000000036D72000-memory.dmp

Filesize
584KB

Download
memory/2948-37-0x00000000365E0000-0x0000000036630000-memory.dmp

Filesize
320KB

Download
memory/2948-33-0x0000000035EE0000-0x0000000035F7C000-memory.dmp

Filesize
624KB

Download
memory/2948-36-0x0000000036AC0000-0x0000000036C82000-memory.dmp

Filesize
1.8MB

Download
memory/4964-10-0x0000000077541000-0x0000000077661000-memory.dmp

Filesize
1.1MB

Download
memory/4964-9-0x0000000005240000-0x0000000006E8F000-memory.dmp

Filesize
28.3MB

Download
memory/4964-12-0x0000000005240000-0x0000000006E8F000-memory.dmp

Filesize
28.3MB

Download
memory/4964-11-0x00000000743A4000-0x00000000743A5000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads