guloader | c6fc49d43b804580f1e77083f46671ffba07d1776148f19fb6f45ac25789248c

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27/09/2022, 19:09

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General

Target

SecuriteInfo.com.VHO.Packed.NSIS.Krynis.gen.11646.15492.exe
Size

129KB
MD5

e7a5f64db3aa0ff4d554d7a67c336e1f
SHA1

dd46d06c47c29bfcbdbc9795baf77661e92a25f1
SHA256

c6fc49d43b804580f1e77083f46671ffba07d1776148f19fb6f45ac25789248c
SHA512

b91e902c90e572395b6df3dcbcba9882f98feb3d0ee57f07f4a799b1e7bd7ead9475e6c0ffffb06cfee1ac51bc3813069eb0366667c1a61c26f38b4f38e6e052
SSDEEP

3072:icL0bUTppDAYzI27HM9WcEM+hxRrkPEYDlooVkqQ9x0lUnLOZfSXs9:EbUTp1NcEM+hvrEEiloEkqJlK+T9

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
564	SecuriteInfo.com.VHO.Packed.NSIS.Krynis.gen.11646.15492.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 Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\Dsende\Smagte57\Whiskys\Fidelities.Vej	SecuriteInfo.com.VHO.Packed.NSIS.Krynis.gen.11646.15492.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\Enogtyvendedels\Kupfferite.Tit	SecuriteInfo.com.VHO.Packed.NSIS.Krynis.gen.11646.15492.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\SecuriteInfo.com.VHO.Packed.NSIS.Krynis.gen.11646.15492.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.VHO.Packed.NSIS.Krynis.gen.11646.15492.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
PID:564

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\nsy1325.tmp\System.dll

Filesize
11KB

MD5
7399323923e3946fe9140132ac388132

SHA1
728257d06c452449b1241769b459f091aabcffc5

SHA256
5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3

SHA512
d6f28ba761351f374ae007c780be27758aea7b9f998e2a88a542eede459d18700adffe71abcb52b8a8c00695efb7ccc280175b5eeb57ca9a645542edfabb64f1

Download Submit
memory/564-54-0x0000000074AD1000-0x0000000074AD3000-memory.dmp

Filesize
8KB

Download
memory/564-56-0x00000000032F0000-0x00000000033F1000-memory.dmp

Filesize
1.0MB

Download
memory/564-57-0x00000000032F0000-0x00000000033F1000-memory.dmp

Filesize
1.0MB

Download