guloader | f97e7763f53610fb7915fa5ee7d0fd649749281f6ea3c6774d044c641cc32a86

Resubmissions

23/09/2022, 14:23

220923-rqmnzsaedq 10

23/09/2022, 14:02

220923-rb3rnaadhq 10

Analysis

max time kernel
317s
max time network
512s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23/09/2022, 14:23

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Report Analysis Logs

General

Target

extracted_at_0x0.exe
Size

474KB
MD5

cbd03b0128ec974c983c0604d4319536
SHA1

19bd4374de4f58df2a303a68a22df8ffd23a51b8
SHA256

0d49d91ede6737be9e75bac99701a344b3a8a32acaf95e452a8888521481e15d
SHA512

ee4970768b92c24adae33c1b0c3cf9e4957d3c6d52c1915caa95cb4fca5e566965d024bf4856ed90c531b5550ba49d2d91eea87eca45e7cb0f6dbb9e2ddb3914
SSDEEP

6144:ZtXZXzWCOd3DgW86qeVRvnx051WPKOV1mDVa1rqWvzN1R4Uz4JSvkxYTpPnc/vfh:ZtZ4z60DxK1WSEUa1rJ1+c44JnW9f

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
4664	extracted_at_0x0.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\ionisere\Stagendes\Modellen.Ver	extracted_at_0x0.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\Kakifarvet.Dio	extracted_at_0x0.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\extracted_at_0x0.exe
"C:\Users\Admin\AppData\Local\Temp\extracted_at_0x0.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
PID:4664

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\nsf6F4B.tmp\System.dll

Filesize
11KB

MD5
7399323923e3946fe9140132ac388132

SHA1
728257d06c452449b1241769b459f091aabcffc5

SHA256
5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3

SHA512
d6f28ba761351f374ae007c780be27758aea7b9f998e2a88a542eede459d18700adffe71abcb52b8a8c00695efb7ccc280175b5eeb57ca9a645542edfabb64f1

Download Submit
memory/4664-133-0x00000000051B0000-0x00000000052C7000-memory.dmp

Filesize
1.1MB

Download
memory/4664-134-0x00000000051B0000-0x00000000052C7000-memory.dmp

Filesize
1.1MB

Download