guloader | 0512c8c515096734e33d52d39d554b683466183859b968f3c3fc525be6acd69e

Analysis

max time kernel
142s
max time network
143s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25-08-2024 02:13

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General

Target

bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe
Size

120KB
MD5

bfe4aabcee56d9ea66622617e6a5fe4b
SHA1

d42ea0954d9bf83a12a85ad01543a157099de63c
SHA256

0512c8c515096734e33d52d39d554b683466183859b968f3c3fc525be6acd69e
SHA512

e578ba6907d916bb4604c2c68250b624c41f2ece9a07270c79ae3487288eca970ca5cf14f0adc625e1341fac73cebdc3b837daa08877574bc9d848ade65044b3
SSDEEP

1536:wbzdIV2eDCsbvzlJAF4aSeH6iRNKipxXJT4r4580MFO/1aqY990:EZemaIF5OSzTHDME//Y990

Score

10^/10

guloader discovery downloader guloader persistence

Malware Config

Extracted

Family

guloader

https://drive.google.com/uc?export=download&id=1v78PFto3JJf_8bTs6JiFNPTELOwzYfT0

xor.base64

Signatures

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

Guloader payload 1 IoCs

guloader

resource	yara_rule
behavioral1/memory/332-2-0x0000000000760000-0x0000000000768000-memory.dmp	family_guloader

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Lucslandowner = "C:\\Users\\Admin\\HOEJLANDSPLA\\logorrhei.exe"	RegAsm.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	drive.google.com
5	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe
2232	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 332 set thread context of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31

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	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 332 wrote to memory of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31
PID 332 wrote to memory of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31
PID 332 wrote to memory of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31
PID 332 wrote to memory of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31
PID 332 wrote to memory of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31
PID 332 wrote to memory of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31
PID 332 wrote to memory of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31
PID 332 wrote to memory of 2232	332	bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:332
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Users\Admin\AppData\Local\Temp\bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/332-2-0x0000000000760000-0x0000000000768000-memory.dmp

Filesize
32KB

Download
memory/332-3-0x00000000779C1000-0x0000000077AC2000-memory.dmp

Filesize
1.0MB

Download
memory/332-4-0x00000000779C0000-0x0000000077B69000-memory.dmp

Filesize
1.7MB

Download
memory/332-23-0x0000000000760000-0x0000000000768000-memory.dmp

Filesize
32KB

Download
memory/332-24-0x0000000000760000-0x0000000000768000-memory.dmp

Filesize
32KB

Download
memory/2232-6-0x00000000779C0000-0x0000000077B69000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads