guloader | 30c62853cfb5c479bfc53ce608a909084ba327d13dc71f00d3da7a4ddbcaff93

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 21:37

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General

Target

RENDELÉSI szám 4956655r7e-pdf.exe
Size

1.4MB
MD5

a951367936161bc1dbb20eb588a6da95
SHA1

f1031fbc04c659943c2a34d2f45490b36ed2cc6a
SHA256

b5233a8b0c90711e8382d0898799c86c61ad1a1d6f93c0105057ec4bd199ca4f
SHA512

a0cc882022535f43bd7b6d2d2d931755b88468185801eff2233e7226b873ee73ec06a1c860ccb2509b32778b565998e8407192901c0e4560ff3ec9fb481cc455
SSDEEP

24576:4Kk6Zhc5+m5Ruww7T0OTRYoBLwbpclU12Z1owyMsMtBH9I9QoP8YfyWhk2xRUAS5:9kb5+o4wwb3BwbylFZ1l7wQokD09OuPE

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
2840	RENDELÉSI szám 4956655r7e-pdf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2840	RENDELÉSI szám 4956655r7e-pdf.exe
2776	caspol.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 2776	2840	RENDELÉSI szám 4956655r7e-pdf.exe	29

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\pass.ini	RENDELÉSI szám 4956655r7e-pdf.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 2 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	RENDELÉSI szám 4956655r7e-pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	caspol.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2840	RENDELÉSI szám 4956655r7e-pdf.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2776	2840	RENDELÉSI szám 4956655r7e-pdf.exe	29
PID 2840 wrote to memory of 2776	2840	RENDELÉSI szám 4956655r7e-pdf.exe	29
PID 2840 wrote to memory of 2776	2840	RENDELÉSI szám 4956655r7e-pdf.exe	29
PID 2840 wrote to memory of 2776	2840	RENDELÉSI szám 4956655r7e-pdf.exe	29
PID 2840 wrote to memory of 2776	2840	RENDELÉSI szám 4956655r7e-pdf.exe	29
PID 2840 wrote to memory of 2776	2840	RENDELÉSI szám 4956655r7e-pdf.exe	29

C:\Users\Admin\AppData\Local\Temp\RENDELÉSI szám 4956655r7e-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RENDELÉSI szám 4956655r7e-pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
  "C:\Users\Admin\AppData\Local\Temp\RENDELÉSI szám 4956655r7e-pdf.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2776

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

C:\Users\Public\Pictures\bovlstrups.ini

Filesize
41B

MD5
1f8a8fe20f1870e7459bc3ceba450e96

SHA1
1f2a4a6c5160948128e72d581db9ffc298706e7d

SHA256
39bf1e3290ba34b0b8ce448ba58048aa4ed75ff8eafce7e191f6b88078b68abe

SHA512
2b5363332229eb290c7318a1bd1a122a71048a71f87241da9feaace4779d3318aeefff724148d84217d7f98fd070b8be0cf0102d78d30a4f10fa3f35a87115c9

Download Submit
\Users\Admin\AppData\Local\Temp\nsjA6EA.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
memory/2776-26-0x0000000077720000-0x00000000778C9000-memory.dmp

Filesize
1.7MB

Download
memory/2776-27-0x0000000072D50000-0x0000000073DB2000-memory.dmp

Filesize
16.4MB

Download
memory/2840-22-0x0000000003B50000-0x0000000006833000-memory.dmp

Filesize
44.9MB

Download
memory/2840-23-0x0000000077721000-0x0000000077822000-memory.dmp

Filesize
1.0MB

Download
memory/2840-25-0x0000000077720000-0x00000000778C9000-memory.dmp

Filesize
1.7MB

Download
memory/2840-24-0x0000000003B50000-0x0000000006833000-memory.dmp

Filesize
44.9MB

Download
memory/2840-33-0x0000000003B50000-0x0000000006833000-memory.dmp

Filesize
44.9MB

Download