guloader | 25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066

General

Target

25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe
Size

694KB
MD5

964744dc0ee9f5fcb1c2d50553c1a080
SHA1

b097808717cf2aed2109c0191b6a32471a97b1c5
SHA256

25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066
SHA512

9151bfa7447126013681209b92e46f8049a8bea2d09fb972a19942795d0a16274c191bbb654eb66465011da5260fc34c08b0eb456348ab377e5bde1aa90713f0
SSDEEP

12288:sMwaWgmqtOAmk6kIATs0yjE8HELsQP04nwNtsgw3PgAeeVhGctH74:sMwaWgqkJIAw0yghs2f2Mobev74

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
mail.foodex.com.pk
Port:
587
Username:
[email protected]
Password:
wajahat1975
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
2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.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
24	checkip.dyndns.org

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\diskussionsklubbens.ini	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4640	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe
4640	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2452 set thread context of 4640	2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe	92

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\mooktar\julekaktussers.ini	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4424	4640	WerFault.exe	92

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	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4640	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4640	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 4640	2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe	92
PID 2452 wrote to memory of 4640	2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe	92
PID 2452 wrote to memory of 4640	2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe	92
PID 2452 wrote to memory of 4640	2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe	92
PID 2452 wrote to memory of 4640	2452	25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe	92

C:\Users\Admin\AppData\Local\Temp\25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe
"C:\Users\Admin\AppData\Local\Temp\25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- 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:2452
- C:\Users\Admin\AppData\Local\Temp\25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe
  "C:\Users\Admin\AppData\Local\Temp\25e63b30d14cfb8e34d5223ad2d2eee2d684603b5e74b91fdecd2ff9b8945066.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 2268
    3⤵
    - Program crash
    PID:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4640 -ip 4640
1⤵
PID:3248

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

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsf93E4.tmp\System.dll

Filesize
12KB

MD5
564bb0373067e1785cba7e4c24aab4bf

SHA1
7c9416a01d821b10b2eef97b80899d24014d6fc1

SHA256
7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5

SHA512
22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472

Download Submit
memory/2452-12-0x0000000003280000-0x0000000003E92000-memory.dmp

Filesize
12.1MB

Download
memory/2452-13-0x00000000777A1000-0x00000000778C1000-memory.dmp

Filesize
1.1MB

Download
memory/2452-14-0x0000000074495000-0x0000000074496000-memory.dmp

Filesize
4KB

Download
memory/2452-15-0x0000000003280000-0x0000000003E92000-memory.dmp

Filesize
12.1MB

Download
memory/4640-16-0x00000000016C0000-0x00000000022D2000-memory.dmp

Filesize
12.1MB

Download
memory/4640-17-0x0000000077828000-0x0000000077829000-memory.dmp

Filesize
4KB

Download
memory/4640-18-0x0000000077845000-0x0000000077846000-memory.dmp

Filesize
4KB

Download
memory/4640-24-0x00000000777A1000-0x00000000778C1000-memory.dmp

Filesize
1.1MB

Download
memory/4640-23-0x00000000016C0000-0x00000000022D2000-memory.dmp

Filesize
12.1MB

Download
memory/4640-22-0x0000000000460000-0x00000000016B4000-memory.dmp

Filesize
18.3MB

Download
memory/4640-25-0x0000000000460000-0x00000000004AA000-memory.dmp

Filesize
296KB

Download
memory/4640-26-0x0000000034F50000-0x00000000354F4000-memory.dmp

Filesize
5.6MB

Download
memory/4640-27-0x0000000032BD0000-0x0000000032C6C000-memory.dmp

Filesize
624KB

Download
memory/4640-29-0x00000000777A1000-0x00000000778C1000-memory.dmp

Filesize
1.1MB

Download
memory/4640-30-0x00000000016C0000-0x00000000022D2000-memory.dmp

Filesize
12.1MB

Download

Analysis

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