guloader | d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 12:43

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General

Target

d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe
Size

898KB
MD5

2a19eac38990809a62213e2b89be0f60
SHA1

99d231bc3c54c0d29469c97c4987329fd523fe20
SHA256

d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6
SHA512

c5691f86d12f6263405d44288f0ca918dccb8ecd131010053cb12b4989587257935fd0f219ae06f36f79a30fba123596569cdcd0c65a342db2d68583f6a56d11
SSDEEP

24576:ZFZsHTO9u9XKhrmooaiw6J/xJ3hLGdftX8P2J8:Z3n9i6BiwW5J3lStMPm8

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
1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe
3020	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1780 set thread context of 3020	1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe	31

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	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 3020	1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe	31
PID 1780 wrote to memory of 3020	1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe	31
PID 1780 wrote to memory of 3020	1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe	31
PID 1780 wrote to memory of 3020	1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe	31
PID 1780 wrote to memory of 3020	1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe	31
PID 1780 wrote to memory of 3020	1780	d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe	31

C:\Users\Admin\AppData\Local\Temp\d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe
"C:\Users\Admin\AppData\Local\Temp\d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Users\Admin\AppData\Local\Temp\d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe
  "C:\Users\Admin\AppData\Local\Temp\d322df678d8d8b40b30c463a51395a961b0a703a01523d6def82a4679b5729a6.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:3020

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\nseE42B.tmp\System.dll

Filesize
12KB

MD5
d968cb2b98b83c03a9f02dd9b8df97dc

SHA1
d784c9b7a92dce58a5038beb62a48ff509e166a0

SHA256
a4ec98011ef99e595912718c1a1bf1aa67bfc2192575729d42f559d01f67b95c

SHA512
2ee41dc68f329a1519a8073ece7d746c9f3bf45d8ef3b915deb376af37e26074134af5f83c8af0fe0ab227f0d1acca9f37e5ca7ae37c46c3bcc0331fe5e2b97e

Download Submit
memory/1780-10-0x0000000003F50000-0x0000000004AA6000-memory.dmp

Filesize
11.3MB

Download
memory/1780-11-0x0000000077AB1000-0x0000000077BB2000-memory.dmp

Filesize
1.0MB

Download
memory/1780-12-0x0000000003F50000-0x0000000004AA6000-memory.dmp

Filesize
11.3MB

Download
memory/1780-13-0x0000000077AB0000-0x0000000077C59000-memory.dmp

Filesize
1.7MB

Download
memory/1780-28-0x0000000003F50000-0x0000000004AA6000-memory.dmp

Filesize
11.3MB

Download
memory/3020-15-0x0000000077AB0000-0x0000000077C59000-memory.dmp

Filesize
1.7MB

Download
memory/3020-14-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/3020-16-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download