guloader | 7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24

General

Target

7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
Size

677KB
MD5

cfd2a2a0de8c10180319835f2c148578
SHA1

a685193f4a254f4a67d116120c870f827d83b561
SHA256

7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24
SHA512

a423f5abf8ff6b7caa625cb292760f08839527352dde9808f8c73b2d7e5f76d5c7e6f4d997054c39a9375a02a74b044a89efd4dae9e7ad0a4c835c8ae83ca259
SSDEEP

12288:Xa/AcZ6qJ2s1+pBOi+jWtpXpUtvntYRo0/vzwZ2XdgjPEmADNA0EpphZNG2K:X4Z6SQB5+ypXGL4oyszjsmY0K

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7868872251:AAGgFQ9Bkl4sqj91n2vPKSuoyNLVzJTqODY/sendMessage?chat_id=8173633564

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 2 IoCs

pid	Process
1628	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
1628	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.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-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe

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

Web Service

T1102

flow	ioc
10	drive.google.com
11	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
23	checkip.dyndns.org
25	reallyfreegeoip.org
26	reallyfreegeoip.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4296	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1628	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
4296	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.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 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	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4296	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
4296	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1628	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 4296	1628	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe	87
PID 1628 wrote to memory of 4296	1628	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe	87
PID 1628 wrote to memory of 4296	1628	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe	87
PID 1628 wrote to memory of 4296	1628	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe

C:\Users\Admin\AppData\Local\Temp\7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
"C:\Users\Admin\AppData\Local\Temp\7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Users\Admin\AppData\Local\Temp\7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.exe
  "C:\Users\Admin\AppData\Local\Temp\7d9639376d9c7dcecfdf494950100a6d04238a7d510d65c4b52225b634073b24.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:4296

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\nsjAA5A.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\Music\timelanges.lnk

Filesize
838B

MD5
91269dcd3baef115fb6c35f53c39c9c9

SHA1
da70ce7dc2ee43a954aaecdb5456d3f15f3c5be0

SHA256
5a3c140156458acab95e73b7fc0b37f5a998caf46d75fa433cccb927d00c353a

SHA512
ff0fb80e6f610ae7d835af3c08d5f468ecc456d69112e5f18009b480240bc27096f63d9c586a8ff89920a4f1648710169ee87400e17fe0cfc8f777808123a882

Download Submit
memory/1628-307-0x00000000030A0000-0x0000000005831000-memory.dmp

Filesize
39.6MB

Download
memory/1628-308-0x0000000077691000-0x00000000777B1000-memory.dmp

Filesize
1.1MB

Download
memory/1628-310-0x00000000030A0000-0x0000000005831000-memory.dmp

Filesize
39.6MB

Download
memory/1628-311-0x0000000074B35000-0x0000000074B36000-memory.dmp

Filesize
4KB

Download
memory/4296-327-0x00000000016F0000-0x0000000003E81000-memory.dmp

Filesize
39.6MB

Download
memory/4296-330-0x0000000036C90000-0x0000000037234000-memory.dmp

Filesize
5.6MB

Download
memory/4296-325-0x0000000000490000-0x00000000016E4000-memory.dmp

Filesize
18.3MB

Download
memory/4296-326-0x0000000000490000-0x00000000016E4000-memory.dmp

Filesize
18.3MB

Download
memory/4296-309-0x00000000016F0000-0x0000000003E81000-memory.dmp

Filesize
39.6MB

Download
memory/4296-328-0x0000000000490000-0x00000000004DA000-memory.dmp

Filesize
296KB

Download
memory/4296-329-0x00000000016F0000-0x0000000003E81000-memory.dmp

Filesize
39.6MB

Download
memory/4296-312-0x00000000016F0000-0x0000000003E81000-memory.dmp

Filesize
39.6MB

Download
memory/4296-331-0x0000000034930000-0x00000000349CC000-memory.dmp

Filesize
624KB

Download
memory/4296-333-0x0000000037700000-0x00000000378C2000-memory.dmp

Filesize
1.8MB

Download
memory/4296-334-0x00000000378D0000-0x0000000037920000-memory.dmp

Filesize
320KB

Download
memory/4296-335-0x0000000037970000-0x0000000037E9C000-memory.dmp

Filesize
5.2MB

Download
memory/4296-337-0x0000000037EF0000-0x0000000037F82000-memory.dmp

Filesize
584KB

Download
memory/4296-338-0x0000000037FE0000-0x0000000037FEA000-memory.dmp

Filesize
40KB

Download

Analysis

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