guloader | 78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef

Analysis

max time kernel
91s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2022, 16:32

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General

Target

78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef.exe
Size

153KB
MD5

76455b7e8546d6f3621ce0fe9cbdd34b
SHA1

d102feac4d08fbeb77c3ed4746c0d8007941addd
SHA256

78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef
SHA512

ec580c20d102e3d8ece8b62c42c1ad88654841d48dea09a9d421b898dfdf9b28d20bf9c67789c817e2e5be1f0a1a96b5653adef4661d3109b7c1cf92bf4fecc9
SSDEEP

3072:eYu/YbAcxltXugkbffcKwEU2OVG6daAOG99Up+BUHW5hZMehi5qFt13fSB:e6bAcJyX5ch5Kp+UsXu

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
652	78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef.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 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\filosofierne\Trowie239\Antidromal.ini	78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef.exe
File opened for modification	C:\Program Files (x86)\Common Files\Egenskaben\Blselamper\Trissendes.ini	78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Fonts\Smeariness\Shiitterne\Fluesvampenes.Ske	78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef.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\78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef.exe
"C:\Users\Admin\AppData\Local\Temp\78fc852976d4f8e68360f4bd282b78abb21f7aa02b52cf885203b43d0838c5ef.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
PID:652

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

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

Filesize
11KB

MD5
8b3830b9dbf87f84ddd3b26645fed3a0

SHA1
223bef1f19e644a610a0877d01eadc9e28299509

SHA256
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37

SHA512
d13cfd98db5ca8dc9c15723eee0e7454975078a776bce26247228be4603a0217e166058ebadc68090afe988862b7514cb8cb84de13b3de35737412a6f0a8ac03

Download Submit
memory/652-133-0x0000000002D10000-0x0000000002E10000-memory.dmp

Filesize
1024KB

Download
memory/652-134-0x0000000002D10000-0x0000000002E10000-memory.dmp

Filesize
1024KB

Download