guloader | 410ef6d906ba484fc887ccde242ff8f0057fe55c338a7e4dc9d7be4ed94c7f9a

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2023 13:48

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General

Target

E-dekont.exe
Size

878KB
MD5

1349f4cdeeff77f8e18cddb241f3e425
SHA1

f631ca6cb8897a6d052f09df9c278f16088aa25e
SHA256

410ef6d906ba484fc887ccde242ff8f0057fe55c338a7e4dc9d7be4ed94c7f9a
SHA512

3ed9368e40be9803b0f9590d1f67e4dddad886a3551e52915a042a36fa7813d5556e78034d9a6297c9aefef3da5203bc9fb1bb013dd57e09a121f66dc77b82cd
SSDEEP

24576:P7EcmNaAnMM0Xc4H0KZCbhDjoJfMpxXM+u7vR/k4k:wRBfAdZCbtjogxFgRE

Score

10^/10

guloader downloader

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Loads dropped DLL 1 IoCs

Processes:

E-dekont.exe

pid process

4748 E-dekont.exe
Drops file in System32 directory 1 IoCs

Processes:

E-dekont.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\octocoralline\udflet.kly E-dekont.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

E-dekont.exemsbuild.exe

pid process

4748 E-dekont.exe
3768 msbuild.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

E-dekont.exe

description pid process target process

PID 4748 set thread context of 3768 4748 E-dekont.exe msbuild.exe
Drops file in Program Files directory 1 IoCs

Processes:

E-dekont.exe

description ioc process

File created C:\Program Files (x86)\Alkoholpaavirkede.lnk E-dekont.exe

pid	process
4748	E-dekont.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\octocoralline\udflet.kly	E-dekont.exe

pid	process
4748	E-dekont.exe
3768	msbuild.exe

description	pid	process	target process
PID 4748 set thread context of 3768	4748	E-dekont.exe	msbuild.exe

description	ioc	process
File created	C:\Program Files (x86)\Alkoholpaavirkede.lnk	E-dekont.exe

Drops file in Windows directory 2 IoCs

Processes:

E-dekont.exe

description	ioc	process
File opened for modification	C:\Windows\Fonts\sttemaskinerne.aft	E-dekont.exe
File opened for modification	C:\Windows\pau.anl	E-dekont.exe

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

System Information Discovery
T1082
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

E-dekont.exe

pid process

4748 E-dekont.exe

pid	process
4748	E-dekont.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

E-dekont.exe

description	pid	process	target process
PID 4748 wrote to memory of 3768	4748	E-dekont.exe	msbuild.exe
PID 4748 wrote to memory of 3768	4748	E-dekont.exe	msbuild.exe
PID 4748 wrote to memory of 3768	4748	E-dekont.exe	msbuild.exe
PID 4748 wrote to memory of 3768	4748	E-dekont.exe	msbuild.exe
PID 4748 wrote to memory of 3768	4748	E-dekont.exe	msbuild.exe

C:\Users\Admin\AppData\Local\Temp\E-dekont.exe
"C:\Users\Admin\AppData\Local\Temp\E-dekont.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4748

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
"C:\Users\Admin\AppData\Local\Temp\E-dekont.exe"
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:3768

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

C:\Users\Admin\AppData\Local\Temp\nsg498E.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\regdir.ini

Filesize
23B

MD5
c92bd40da0253a8950d8212a10a45b7a

SHA1
51b8c9ec204739dc6533aedb479e2246dc6c814e

SHA256
66254a3eeb63222b02602732fac5e85f080d77c5e257e138864931763fb955fb

SHA512
26cc58e0e7aceea7e1f3083fa8ca7e231ca71616006d34a5b73de93f1edbcb2904ab246f0ae241f2fcd51c93f467757081c381c57e1de8c77a2a8695ec4ac4e1

Download Submit
memory/3768-46-0x0000000001170000-0x0000000003843000-memory.dmp

Filesize
38.8MB

Download
memory/3768-49-0x00000000772C8000-0x00000000772C9000-memory.dmp

Filesize
4KB

Download
memory/3768-48-0x0000000077241000-0x0000000077361000-memory.dmp

Filesize
1.1MB

Download
memory/3768-50-0x0000000072E40000-0x0000000074094000-memory.dmp

Filesize
18.3MB

Download
memory/3768-52-0x0000000001170000-0x0000000003843000-memory.dmp

Filesize
38.8MB

Download
memory/4748-43-0x0000000004250000-0x0000000006923000-memory.dmp

Filesize
38.8MB

Download
memory/4748-44-0x0000000077241000-0x0000000077361000-memory.dmp

Filesize
1.1MB

Download
memory/4748-45-0x00000000740A0000-0x00000000740A7000-memory.dmp

Filesize
28KB

Download
memory/4748-47-0x0000000004250000-0x0000000006923000-memory.dmp

Filesize
38.8MB

Download