guloader | afd5f9c1042e4440a8ab7518fdeb992d525ad9b5075a1dd47ba4774e88fb6910

Analysis

max time kernel
47s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
08-09-2022 05:13

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General

Target

afd5f9c1042e4440a8ab7518fdeb992d525ad9b5075a1dd47ba4774e88fb6910.exe
Size

123KB
MD5

7c4d4080bdd13425e20850a20939f561
SHA1

f9a140fdc8b3e86d6024f91eaad7f38b9a598fad
SHA256

afd5f9c1042e4440a8ab7518fdeb992d525ad9b5075a1dd47ba4774e88fb6910
SHA512

a8dfaa7914b6aea17a4d2f09d25117ebd043397052c03b213bc31aaf5d7c9e9b1e9ff86b1b52d7d57ad3eb3a31b9b06428cc08e28c0c048ad3aa40a735183644
SSDEEP

3072:WuxVUg3yGDRb8lc7uEUWDBD5iXME6pIb3H7:JgORaHsaXM83b

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1768	afd5f9c1042e4440a8ab7518fdeb992d525ad9b5075a1dd47ba4774e88fb6910.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Samleobjekts.ini	afd5f9c1042e4440a8ab7518fdeb992d525ad9b5075a1dd47ba4774e88fb6910.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\Pouncer\Telefonisterne\Tummels.His	afd5f9c1042e4440a8ab7518fdeb992d525ad9b5075a1dd47ba4774e88fb6910.exe

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

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\afd5f9c1042e4440a8ab7518fdeb992d525ad9b5075a1dd47ba4774e88fb6910.exe
"C:\Users\Admin\AppData\Local\Temp\afd5f9c1042e4440a8ab7518fdeb992d525ad9b5075a1dd47ba4774e88fb6910.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
PID:1768

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nso8758.tmp\System.dll

Filesize
12KB

MD5
564bb0373067e1785cba7e4c24aab4bf

SHA1
7c9416a01d821b10b2eef97b80899d24014d6fc1

SHA256
7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5

SHA512
22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472

Download Submit
memory/1768-54-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1768-56-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1768-57-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/1768-58-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download