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 discovery downloader keylogger 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

pid	Process
3040	JOSHHHHHH.exe

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

Web Service

T1102

flow	ioc
3	drive.google.com
5	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.

flow	ioc
14	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2600	JOSHHHHHH.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3040	JOSHHHHHH.exe
2600	JOSHHHHHH.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3040 set thread context of 2600	3040	JOSHHHHHH.exe	31

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Kernelder\nyxis.ini	JOSHHHHHH.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	JOSHHHHHH.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JOSHHHHHH.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2600	JOSHHHHHH.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3040	JOSHHHHHH.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	JOSHHHHHH.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2600	3040	JOSHHHHHH.exe	31
PID 3040 wrote to memory of 2600	3040	JOSHHHHHH.exe	31
PID 3040 wrote to memory of 2600	3040	JOSHHHHHH.exe	31
PID 3040 wrote to memory of 2600	3040	JOSHHHHHH.exe	31
PID 3040 wrote to memory of 2600	3040	JOSHHHHHH.exe	31
PID 3040 wrote to memory of 2600	3040	JOSHHHHHH.exe	31

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:3040
- C:\Users\Admin\AppData\Local\Temp\JOSHHHHHH.exe
  "C:\Users\Admin\AppData\Local\Temp\JOSHHHHHH.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nstE3EA.tmp\System.dll

Filesize
11KB

MD5
75ed96254fbf894e42058062b4b4f0d1

SHA1
996503f1383b49021eb3427bc28d13b5bbd11977

SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

Download Submit
memory/2600-14-0x00000000773B0000-0x0000000077559000-memory.dmp

Filesize
1.7MB

Download
memory/2600-16-0x0000000000480000-0x00000000014E2000-memory.dmp

Filesize
16.4MB

Download
memory/2600-38-0x0000000000480000-0x00000000014E2000-memory.dmp

Filesize
16.4MB

Download
memory/2600-39-0x0000000000480000-0x00000000004C8000-memory.dmp

Filesize
288KB

Download
memory/3040-10-0x0000000004040000-0x0000000005C8F000-memory.dmp

Filesize
28.3MB

Download
memory/3040-12-0x00000000773B0000-0x0000000077559000-memory.dmp

Filesize
1.7MB

Download
memory/3040-11-0x00000000773B1000-0x00000000774B2000-memory.dmp

Filesize
1.0MB

Download
memory/3040-13-0x0000000004040000-0x0000000005C8F000-memory.dmp

Filesize
28.3MB

Download
memory/3040-15-0x0000000004040000-0x0000000005C8F000-memory.dmp

Filesize
28.3MB

Download

Analysis

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