guloader | eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80

General

Target

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
Size

1.2MB
MD5

b03f23199ae987a7bce0ff1a0d742e3e
SHA1

f454c8de72926ee9f98db7056fa89f0c3ada9666
SHA256

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80
SHA512

01ccdc0f586a8926a56f0d3bfee91c5e882bff5df84cbb5363df6681fb62863a8075af8261bb72ecf2360d9d4dc4552dddb4e1ec1da002c24b9416ff0d3f95be
SSDEEP

24576:aCAoDyk/vnt3h1CzLuTIv08yZVk7ku8h7w6/t338euHdB4bU4VD4C:aCAfqvtx1UuTIMfg7ku8Vfx3/uHHSU4t

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 2 IoCs

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

pid	process
3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

pid process

1776 eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exeeda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

pid	process
3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
1776	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

description	pid	process	target process
PID 3780 set thread context of 1776	3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

Drops file in Windows directory 2 IoCs

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

description	ioc	process
File opened for modification	C:\Windows\Bitcom\Paragraferedes75.ret	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
File opened for modification	C:\Windows\resources\soenderbro.ini	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2960 1776 WerFault.exe eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

pid	pid_target	process	target process
2960	1776	WerFault.exe	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

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

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exeeda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

pid	process
1776	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
1776	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

pid process

3780 eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

description	pid	process	target process
PID 3780 wrote to memory of 1776	3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
PID 3780 wrote to memory of 1776	3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
PID 3780 wrote to memory of 1776	3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
PID 3780 wrote to memory of 1776	3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
PID 3780 wrote to memory of 1776	3780	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe	eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe

C:\Users\Admin\AppData\Local\Temp\eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
"C:\Users\Admin\AppData\Local\Temp\eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.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:3780
- C:\Users\Admin\AppData\Local\Temp\eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe
  "C:\Users\Admin\AppData\Local\Temp\eda014e3b658bfbbfd141c1459a3414d9ee8b7c139a3976fe732141fa9cf3f80.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1776
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1776 -s 1076
    3⤵
    - Program crash
    PID:2960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1776 -ip 1776
1⤵
PID:5068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsi81D3.tmp\System.dll

Filesize
11KB

MD5
3f176d1ee13b0d7d6bd92e1c7a0b9bae

SHA1
fe582246792774c2c9dd15639ffa0aca90d6fd0b

SHA256
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

SHA512
0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

Download Submit
memory/1776-20-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1776-21-0x0000000001660000-0x00000000042EE000-memory.dmp

Filesize
44.6MB

Download
memory/1776-25-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1776-26-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1776-27-0x0000000001660000-0x00000000042EE000-memory.dmp

Filesize
44.6MB

Download
memory/1776-28-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1776-29-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/3780-16-0x0000000002AC0000-0x000000000574E000-memory.dmp

Filesize
44.6MB

Download
memory/3780-17-0x0000000077971000-0x0000000077A91000-memory.dmp

Filesize
1.1MB

Download
memory/3780-18-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/3780-19-0x0000000002AC0000-0x000000000574E000-memory.dmp

Filesize
44.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads