guloader | ba69b44766436aa5dbd83711b7fbdeb2c5c3faf8350f99626dc4460222c94f36

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/09/2024, 23:56

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General

Target

fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe
Size

96KB
MD5

fb22a399994f0ffa43ddc8228d4bd5f7
SHA1

391503a47e20ab4eeb9427638ddcd9fcb46be341
SHA256

ba69b44766436aa5dbd83711b7fbdeb2c5c3faf8350f99626dc4460222c94f36
SHA512

9dd74784866080656050310076628620175107228fcb058118e0332fd7a4e94c38d87bdd7a9f82dcc3e559faeee1dea7ad1f478a915b5bd84f8a8e029a9493bd
SSDEEP

768:veZZKvtZ0SvvaJSOSwPxJQkCTqER8EoK9k+pr1wUftpq:mZZKv3UOeJQkCeERkK9kH

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://tucompraperfecta.com/bin_encrypted_F8CB27F.bin

xor.base64

Signatures

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2464	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe
1200	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2464 set thread context of 1200	2464	fb22a399994f0ffa43ddc8228d4bd5f7_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	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2464	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2464	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 1200	2464	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe	31
PID 2464 wrote to memory of 1200	2464	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe	31
PID 2464 wrote to memory of 1200	2464	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe	31
PID 2464 wrote to memory of 1200	2464	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe	31
PID 2464 wrote to memory of 1200	2464	fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb22a399994f0ffa43ddc8228d4bd5f7_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:2464
- C:\Users\Admin\AppData\Local\Temp\fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fb22a399994f0ffa43ddc8228d4bd5f7_JaffaCakes118.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:1200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1200-8-0x0000000077BE0000-0x0000000077D89000-memory.dmp

Filesize
1.7MB

Download
memory/1200-4-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2464-2-0x0000000000290000-0x00000000002A0000-memory.dmp

Filesize
64KB

Download
memory/2464-3-0x0000000077BE1000-0x0000000077CE2000-memory.dmp

Filesize
1.0MB

Download
memory/2464-7-0x0000000000290000-0x00000000002A0000-memory.dmp

Filesize
64KB

Download
memory/2464-5-0x0000000077BE0000-0x0000000077D89000-memory.dmp

Filesize
1.7MB

Download