guloader | 081a1704ac4a8de63a1deb76c232fbe383e911ff566d34ee39a76605600182a9

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 06:08

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General

Target

Pigroots.exe
Size

544KB
MD5

8ee0889bf7428589385714250950d97d
SHA1

c373041de5f626e6718ea7fad3f143215b34ebc6
SHA256

081a1704ac4a8de63a1deb76c232fbe383e911ff566d34ee39a76605600182a9
SHA512

9f91fad6dbf4cd5555db47ed3400745586be462dd900563dc27e0ada8942caf02ff762df59c44251dc6796dd0f3c7224de1485226125a95150ed7edcbe8e8d3b
SSDEEP

12288:32EIB9TC1qfE+63h27diGoWaCuvQTmd3ZhZt:3wDT8qs+2hCiG5axvGmdPZt

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
mail.cipmach.com
Port:
587
Username:
[email protected]
Password:
mail@2019$
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
804	Pigroots.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
6	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2628	Pigroots.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
804	Pigroots.exe
2628	Pigroots.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 804 set thread context of 2628	804	Pigroots.exe	31

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\slnger\barometerstandenes.san	Pigroots.exe

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2628	Pigroots.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
804	Pigroots.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	Pigroots.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 2628	804	Pigroots.exe	31
PID 804 wrote to memory of 2628	804	Pigroots.exe	31
PID 804 wrote to memory of 2628	804	Pigroots.exe	31
PID 804 wrote to memory of 2628	804	Pigroots.exe	31
PID 804 wrote to memory of 2628	804	Pigroots.exe	31
PID 804 wrote to memory of 2628	804	Pigroots.exe	31

C:\Users\Admin\AppData\Local\Temp\Pigroots.exe
"C:\Users\Admin\AppData\Local\Temp\Pigroots.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:804
- C:\Users\Admin\AppData\Local\Temp\Pigroots.exe
  "C:\Users\Admin\AppData\Local\Temp\Pigroots.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nstE486.tmp\System.dll

Filesize
11KB

MD5
75ed96254fbf894e42058062b4b4f0d1

SHA1
996503f1383b49021eb3427bc28d13b5bbd11977

SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

Download Submit
memory/804-9-0x0000000002830000-0x0000000005A6C000-memory.dmp

Filesize
50.2MB

Download
memory/804-10-0x0000000002830000-0x0000000005A6C000-memory.dmp

Filesize
50.2MB

Download
memory/804-11-0x0000000077271000-0x0000000077372000-memory.dmp

Filesize
1.0MB

Download
memory/804-12-0x0000000077270000-0x0000000077419000-memory.dmp

Filesize
1.7MB

Download
memory/804-13-0x0000000002830000-0x0000000005A6C000-memory.dmp

Filesize
50.2MB

Download
memory/2628-14-0x00000000007E0000-0x0000000001842000-memory.dmp

Filesize
16.4MB

Download
memory/2628-16-0x00000000007E0000-0x000000000082A000-memory.dmp

Filesize
296KB

Download