guloader | 8778a3ffe86b5ec211d0cee3d8fbd760f0659ee26d732db2eaea6765243822b0

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 22:32

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General

Target

transfer_20220801.exe
Size

430KB
MD5

eb773b2023717e9d00d43dea23ce1d41
SHA1

81cfca3461a288bde992e166432af37ae4afe8be
SHA256

ae7c33d18f59f457708d758a9356f99299277cbd836f7888edd1da2fb7937e22
SHA512

f54e805cff6687acf92b88edfa3dd2f7c89e4b7d809bed2741ee22289bb308dd3c4b97ea4368155c4538c7a1660cd22e5894b7e84426f48519c2eb72efc8ed2c
SSDEEP

12288:MNEow2ob31X/DkYpv8fFYmK7dUm5BbtrEwAq/c8w:MNEptv78fi7um5Bbtlzcz

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2032	transfer_20220801.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\Kerystic.ini	transfer_20220801.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	transfer_20220801.exe

C:\Users\Admin\AppData\Local\Temp\transfer_20220801.exe
"C:\Users\Admin\AppData\Local\Temp\transfer_20220801.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsd5C41.tmp\System.dll

Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

Download Submit
memory/2032-9-0x0000000002900000-0x0000000002A01000-memory.dmp

Filesize
1.0MB

Download
memory/2032-10-0x0000000002900000-0x0000000002A01000-memory.dmp

Filesize
1.0MB

Download