guloader | cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac

Analysis

max time kernel
3s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13-02-2024 05:18

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General

Target

cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe
Size

1.1MB
MD5

2ac9cd56e3877efa00a0353cde71186f
SHA1

d0460a2b1fe30c342216048c4390af045b120146
SHA256

cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac
SHA512

e78d405d9b92319d396d488e4c104021a224789fabf09a278d252e1aa407cae1ce4d3562f1e6a18bc3151e16049a1a6d3687b6a4578fc4c946349d5292eb9e2d
SSDEEP

24576:oS5HuMJiUsl/f4g0lnQFpy54j3BjqgMQUWhypBj:B5o/falnQ+54j3ZftUNBj

Score

10^/10

guloader downloader

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 1 IoCs

pid	Process
3688	cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe

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

Web Service

T1102

flow	ioc
32	drive.google.com
33	drive.google.com

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\threshes.uds	cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe
File opened for modification	C:\Windows\SysWOW64\lohoch.gim	cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\forbandelsernes\kln.lio	cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\enchasing.Pet	cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe
File opened for modification	C:\Windows\Fonts\Forters67\Elektrotekniker.wra	cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe
File opened for modification	C:\Windows\Tnkepauses.tro	cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe

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

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe
"C:\Users\Admin\AppData\Local\Temp\cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
PID:3688
- C:\Program Files (x86)\windows mail\wab.exe
  "C:\Users\Admin\AppData\Local\Temp\cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac.exe"
  2⤵
  PID:3560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsp4622.tmp\System.dll

Filesize
11KB

MD5
17ed1c86bd67e78ade4712be48a7d2bd

SHA1
1cc9fe86d6d6030b4dae45ecddce5907991c01a0

SHA256
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb

SHA512
0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5

Download Submit
memory/3560-22-0x0000000002260000-0x0000000004AAD000-memory.dmp

Filesize
40.3MB

Download
memory/3560-24-0x0000000077498000-0x0000000077499000-memory.dmp

Filesize
4KB

Download
memory/3560-25-0x0000000077411000-0x0000000077531000-memory.dmp

Filesize
1.1MB

Download
memory/3560-36-0x0000000001000000-0x0000000002254000-memory.dmp

Filesize
18.3MB

Download
memory/3560-40-0x0000000002260000-0x0000000004AAD000-memory.dmp

Filesize
40.3MB

Download
memory/3688-19-0x00000000053C0000-0x0000000007C0D000-memory.dmp

Filesize
40.3MB

Download
memory/3688-20-0x0000000077411000-0x0000000077531000-memory.dmp

Filesize
1.1MB

Download
memory/3688-21-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download
memory/3688-23-0x00000000053C0000-0x0000000007C0D000-memory.dmp

Filesize
40.3MB

Download