guloader | a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667

General

Target

a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe
Size

726KB
MD5

e353e90a21ca20f3e7bdc640db4bef64
SHA1

4b953174a91cae3617b8f8bfea1056310951d254
SHA256

a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667
SHA512

d4d6b104b59b4786a43a4dd1060143ec4bf1f1ea11f8918073555fedb82c27e5428c823d4deda84d08be7a0d77e53898204b182ea4c195dae921457decea5bae
SSDEEP

12288:dT58++c2/p0FdmxxSKAHNaPH+r3cFaql2DiNpHUy6iqezkmRkFD0ygchhZMfob:dT58+86wxx5dfG3cFnN5UB9vmRkFDZhn

Score

10^/10

guloader vipkeylogger discovery downloader keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
mail.royalwaweltours.com
Port:
587
Username:
[email protected]
Password:
COLL-ARA0324
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 2 IoCs

pid	Process
912	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe
912	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe

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

Web Service

T1102

flow	ioc
34	drive.google.com
35	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
45	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3560	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
912	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe
3560	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.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
2416	3560	WerFault.exe	96

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	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3560	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
912	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 3560	912	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe	96
PID 912 wrote to memory of 3560	912	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe	96
PID 912 wrote to memory of 3560	912	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe	96
PID 912 wrote to memory of 3560	912	a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe	96

C:\Users\Admin\AppData\Local\Temp\a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe
"C:\Users\Admin\AppData\Local\Temp\a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:912
- C:\Users\Admin\AppData\Local\Temp\a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe
  "C:\Users\Admin\AppData\Local\Temp\a29d58240752e42c0e692a6b6b08e8cf2abb9626b4a83d6ddc4ceed51f4ff667.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3560
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 2288
    3⤵
    - Program crash
    PID:2416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3560 -ip 3560
1⤵
PID:1520

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:\Users\Admin\AppData\Local\Temp\nsb7C37.tmp\System.dll

Filesize
12KB

MD5
d968cb2b98b83c03a9f02dd9b8df97dc

SHA1
d784c9b7a92dce58a5038beb62a48ff509e166a0

SHA256
a4ec98011ef99e595912718c1a1bf1aa67bfc2192575729d42f559d01f67b95c

SHA512
2ee41dc68f329a1519a8073ece7d746c9f3bf45d8ef3b915deb376af37e26074134af5f83c8af0fe0ab227f0d1acca9f37e5ca7ae37c46c3bcc0331fe5e2b97e

Download Submit
memory/912-16-0x0000000077A91000-0x0000000077BB1000-memory.dmp

Filesize
1.1MB

Download
memory/912-17-0x0000000077A91000-0x0000000077BB1000-memory.dmp

Filesize
1.1MB

Download
memory/912-18-0x0000000074775000-0x0000000074776000-memory.dmp

Filesize
4KB

Download
memory/3560-19-0x0000000001830000-0x0000000005A83000-memory.dmp

Filesize
66.3MB

Download
memory/3560-20-0x0000000077B18000-0x0000000077B19000-memory.dmp

Filesize
4KB

Download
memory/3560-21-0x0000000077B35000-0x0000000077B36000-memory.dmp

Filesize
4KB

Download
memory/3560-34-0x00000000005D0000-0x0000000001824000-memory.dmp

Filesize
18.3MB

Download
memory/3560-35-0x00000000005D0000-0x0000000001824000-memory.dmp

Filesize
18.3MB

Download
memory/3560-38-0x000000007280E000-0x000000007280F000-memory.dmp

Filesize
4KB

Download
memory/3560-37-0x0000000077A91000-0x0000000077BB1000-memory.dmp

Filesize
1.1MB

Download
memory/3560-39-0x00000000005D0000-0x0000000000618000-memory.dmp

Filesize
288KB

Download
memory/3560-40-0x0000000038870000-0x0000000038E14000-memory.dmp

Filesize
5.6MB

Download
memory/3560-41-0x0000000038E20000-0x0000000038EBC000-memory.dmp

Filesize
624KB

Download
memory/3560-42-0x0000000072800000-0x0000000072FB0000-memory.dmp

Filesize
7.7MB

Download
memory/3560-36-0x0000000001830000-0x0000000005A83000-memory.dmp

Filesize
66.3MB

Download
memory/3560-43-0x0000000077A91000-0x0000000077BB1000-memory.dmp

Filesize
1.1MB

Download
memory/3560-45-0x0000000072800000-0x0000000072FB0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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