guloader | e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
06-06-2024 11:31

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General

Target

e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe
Size

427KB
MD5

736667e7dc440e5841a4b8e91f962998
SHA1

8db35b8be861540df59422eb979752b72379fa5b
SHA256

e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558
SHA512

bc09edfa764fec004e4450c7208206a64f9fe01eb4a2158f7eba6c8a4c66a0c02e9143235a4ecbc1ed0cba3a4a8ad5d9a1ab64138ec145b36ebedb7e887ab0d5
SSDEEP

12288:yqAPWt4Lmt3ZClJfBIr5hT0D8qGBxhUeqJo:Set0D1+ulo

Score

10^/10

guloader downloader

Malware Config

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
1988	e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe
1988	e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1988	e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\prevoyance.ini	e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe

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

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe
"C:\Users\Admin\AppData\Local\Temp\e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
PID:1988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsoF1F.tmp\System.dll

Filesize
11KB

MD5
6ad39193ed20078aa1b23c33a1e48859

SHA1
95e70e4f47aa1689cc08afbdaef3ec323b5342fa

SHA256
b9631423a50c666faf2cc6901c5a8d6eb2fecd306fdd2524256b7e2e37b251c2

SHA512
78c89bb8c86f3b68e5314467eca4e8e922d143335081fa66b01d756303e1aec68ed01f4be7098dbe06a789ca32a0f31102f5ba408bc5ab28e61251611bb4f62b

Download Submit
memory/1988-29-0x0000000004E10000-0x00000000064B2000-memory.dmp

Filesize
22.6MB

Download
memory/1988-30-0x0000000076CF1000-0x0000000076DF2000-memory.dmp

Filesize
1.0MB

Download
memory/1988-31-0x0000000076CF0000-0x0000000076E99000-memory.dmp

Filesize
1.7MB

Download
memory/1988-32-0x0000000004E10000-0x00000000064B2000-memory.dmp

Filesize
22.6MB

Download