guloader | 2862f154ed0e21c853a4e215cd7f5ee6d18e166ee3a742702540d5a4bb206a2f

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
13/07/2023, 16:54

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General

Target

145.scr.exe
Size

414KB
MD5

8fa68b8662eaafcac7fcaa6ff003cf76
SHA1

a16a01e51b509957a385bae6ee5f3d0359f69cea
SHA256

2862f154ed0e21c853a4e215cd7f5ee6d18e166ee3a742702540d5a4bb206a2f
SHA512

8a06a8b7764c2f2df39fb682a0877a2080d38a8924633576071f16d6dfcdb013c04424c3bf15233f43cbd8e1e41e6e2914e57575e5a38896a98edb670b1c02b0
SSDEEP

6144:WPXFzAFDQk5CcQ5bRioRCk++koIh1iWb5A2jUs71e1gl6exMEmqMk35QJnkTDGt2:kzyNxDoRCvX5yWby1gceNRx6Jnk6XPS

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
1360	145.scr.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\leaderess\smmendes\Udtrkssengs.int	145.scr.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\gemytlig\clamorers\trindeler\trappean.Ste213	145.scr.exe
File opened for modification	C:\Windows\Fonts\bremsningerne\regionalgeografiers.Ber	145.scr.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\145.scr.exe
"C:\Users\Admin\AppData\Local\Temp\145.scr.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
PID:1360

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Pictures\uhyrernes.ini

Filesize
32B

MD5
dd143147e10d519478db6e6956810edb

SHA1
b7ff19de5084e38102023994ce40631aabde2133

SHA256
332504cea7d45f5f2f2554d3842dab2d3b3eb656288352e65217ea3a99a8d45b

SHA512
9b1d7b9aa854f5d5a9cb903aa55a76c74c272e399f91484338e80d822dab61c7da907597d7302393646772ab36f2a9382f7c326a8f300deabb578198ec848eb9

Download Submit
\Users\Admin\AppData\Local\Temp\nsd6B33.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
memory/1360-263-0x0000000003880000-0x0000000004C4A000-memory.dmp

Filesize
19.8MB

Download
memory/1360-264-0x0000000003880000-0x0000000004C4A000-memory.dmp

Filesize
19.8MB

Download