guloader | ef34189ff1f1d0d1df2bd1f90802dd30d5eeb285e20136e3eb477afe2b324248

Analysis

max time kernel
145s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 06:28

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General

Target

ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe
Size

168KB
MD5

ed042ec84feec8fe4759aec258c565fa
SHA1

35ab35126c579947eb5389918549f41a8b47730e
SHA256

ef34189ff1f1d0d1df2bd1f90802dd30d5eeb285e20136e3eb477afe2b324248
SHA512

652375791a855ca16ba2491433af18ee67b3d5eff68c1f15ef1e2ca9f915a541d1c9e5e03b7cf1dfc96667fd74ff04c0c17d35f4c06422102974c0ca1e015063
SSDEEP

1536:MChkOF0AGSt4BtBKiKAmmRYBCt4BtBKiKqGPeFn:nklA9ziKAFR4CziKq+0

Score

10^/10

guloader discovery downloader persistence

Malware Config

Extracted

Family

guloader

https://drive.google.com/uc?export=download&id=1nkmV-fnQTYlzRvUiWB_nGvLsm4Y5PbaT

xor.base64

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader 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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Individua4 = "C:\\Users\\Admin\\Arbejdsfor6\\Svrmet.exe"	ieinstal.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
2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe
2540	ieinstal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30

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	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ieinstal.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2540	2380	ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ed042ec84feec8fe4759aec258c565fa_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:2380
- C:\Program Files (x86)\internet explorer\ieinstal.exe
  "C:\Users\Admin\AppData\Local\Temp\ed042ec84feec8fe4759aec258c565fa_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2540

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/2380-2-0x00000000002C0000-0x00000000002C8000-memory.dmp

Filesize
32KB

Download
memory/2380-3-0x00000000779E0000-0x0000000077AB6000-memory.dmp

Filesize
856KB

Download
memory/2380-4-0x00000000777F1000-0x00000000778F2000-memory.dmp

Filesize
1.0MB

Download
memory/2380-8-0x00000000002C0000-0x00000000002C8000-memory.dmp

Filesize
32KB

Download
memory/2380-25-0x00000000002C0000-0x00000000002C8000-memory.dmp

Filesize
32KB

Download
memory/2540-5-0x0000000000200000-0x0000000000300000-memory.dmp

Filesize
1024KB

Download
memory/2540-6-0x00000000777F0000-0x0000000077999000-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