guloader | 46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1

General

Target

46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe
Size

992KB
MD5

092882e43c9e2ace82c4d28b9acf2a63
SHA1

179b5c8592778cc9f63c31983379bbe63ea125e6
SHA256

46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1
SHA512

913e0c3abdca6b747ff3c19c8918bc0425f28298823d00996d745e121136f9c7c4b22929ea94080c418bf3e0dbe557856e7158dfbe953b9555b3aa78c54dd065
SSDEEP

24576:+G/7zT3+EusUj82LKgkfG3Cf2lOVJxBvuFIht:7+Bt82jkf/dVJWa

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7888169387:AAFhsoUaeWK9XqbrEJl452LFnH_AAaGbsWI/sendMessage?chat_id=6838630391

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
1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe
1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

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

Web Service

T1102

flow	ioc
4	drive.google.com
5	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
16	reallyfreegeoip.org
17	reallyfreegeoip.org
14	checkip.dyndns.org

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\revyviserne\Tilbed.ini	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1296	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe
1296	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\delarbejderne.nar	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\fremmder\ifaldne.lev	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.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	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1296	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1296	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 1296	1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe	30
PID 1924 wrote to memory of 1296	1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe	30
PID 1924 wrote to memory of 1296	1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe	30
PID 1924 wrote to memory of 1296	1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe	30
PID 1924 wrote to memory of 1296	1924	46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe	30

C:\Users\Admin\AppData\Local\Temp\46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe
"C:\Users\Admin\AppData\Local\Temp\46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Users\Admin\AppData\Local\Temp\46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe
  "C:\Users\Admin\AppData\Local\Temp\46498a10e9c05d7416f92efce645a67bbe21652e8c0600a0cf64b7e2a3a2cca1.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1296

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

C:\ProgramData\Microsoft\Windows\Templates\dinosaurusserne.lnk

Filesize
1KB

MD5
c1dcd78b9f80d63f80b174d326df7f92

SHA1
91af2420ea63115a1255a0d627c9dfbfa38d0406

SHA256
bd671d8673294e04c64944f1bf7daaf9ae28b0c14b24a39c97d0cb8b7f154a19

SHA512
478152e22adfce65d0eca5fd076cbcc6aae7faf2d95d7924b5a232336fd92809ae5ec2a11ca70f53c3e61785872dc4911c5c6b56058febb54f2c137b9b996f99

Download Submit
\Users\Admin\AppData\Local\Temp\nsyA066.tmp\System.dll

Filesize
11KB

MD5
b853d5d2361ade731e33e882707efc34

SHA1
c58b1aeabdf1cbb8334ef8797e7aceaa7a1cb6be

SHA256
f0cd96e0b6e40f92ad1aa0efacde833bae807b92fca19bf062c1cf8acf29484b

SHA512
8ea31d82ffa6f58dab5632fe72690d3a6db0be65aec85fc8a1f71626773c0974dcebefae17bcf67c4c56ef442545e985eea0b348ff6e4fc36740640092b08d69

Download Submit
memory/1296-315-0x00000000014F0000-0x0000000002465000-memory.dmp

Filesize
15.5MB

Download
memory/1296-317-0x0000000077680000-0x0000000077829000-memory.dmp

Filesize
1.7MB

Download
memory/1296-337-0x0000000000480000-0x00000000014E2000-memory.dmp

Filesize
16.4MB

Download
memory/1296-338-0x0000000000480000-0x00000000014E2000-memory.dmp

Filesize
16.4MB

Download
memory/1296-339-0x00000000014F0000-0x0000000002465000-memory.dmp

Filesize
15.5MB

Download
memory/1296-340-0x0000000000480000-0x00000000004CA000-memory.dmp

Filesize
296KB

Download
memory/1924-312-0x00000000035A0000-0x0000000004515000-memory.dmp

Filesize
15.5MB

Download
memory/1924-314-0x0000000077680000-0x0000000077829000-memory.dmp

Filesize
1.7MB

Download
memory/1924-313-0x0000000077681000-0x0000000077782000-memory.dmp

Filesize
1.0MB

Download
memory/1924-316-0x00000000035A0000-0x0000000004515000-memory.dmp

Filesize
15.5MB

Download

Analysis

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