guloader | 119aed96b731f84dc4bc6cf38f8f2110373c266e5ef18f49eacf7ce1e106ce2c

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
26-06-2024 09:45

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General

Target

118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
Size

180KB
MD5

118f52b809205173695432ce0cb8f549
SHA1

9e8630d903a44945f7e0b107005b20026fcc0ac5
SHA256

119aed96b731f84dc4bc6cf38f8f2110373c266e5ef18f49eacf7ce1e106ce2c
SHA512

e401f8a4a1e132867ef7073ac707f19696add75e8f91a78d868cd5d5c91e00ba688671af41a8c02f7a6a9728363ee40d9b4d8efa0f23d9982298e12c25ac1b27
SSDEEP

1536:6n4Og5YjenvitHCEwgDGvQ5ubNSFTNq/:6BgGBHCPIRTNq/

Score

10^/10

guloader downloader persistence

Malware Config

Extracted

Family

guloader

http://62.113.202.111/Remmy_jMBaBPxmX117.bin

xor.base64

Signatures

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

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

Processes:

118f52b809205173695432ce0cb8f549_JaffaCakes118.exe118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\sekundmetre = "C:\\Users\\Admin\\AppData\\Local\\Temp\\centuply\\POLER.vbs"	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

118f52b809205173695432ce0cb8f549_JaffaCakes118.exe118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

pid process

2740 118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
2556 118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

description pid process target process

PID 2740 set thread context of 2556 2740 118f52b809205173695432ce0cb8f549_JaffaCakes118.exe 118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

pid process

2740 118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

pid process

2740 118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

pid	process
2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
2556	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

description	pid	process	target process
PID 2740 set thread context of 2556	2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

pid	process
2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

pid	process
2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

description	pid	process	target process
PID 2740 wrote to memory of 2556	2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
PID 2740 wrote to memory of 2556	2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
PID 2740 wrote to memory of 2556	2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
PID 2740 wrote to memory of 2556	2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
PID 2740 wrote to memory of 2556	2740	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe	118f52b809205173695432ce0cb8f549_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\118f52b809205173695432ce0cb8f549_JaffaCakes118.exe"
1⤵
- Checks QEMU agent file
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2740

C:\Users\Admin\AppData\Local\Temp\118f52b809205173695432ce0cb8f549_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\118f52b809205173695432ce0cb8f549_JaffaCakes118.exe"
2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2556

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/2556-8-0x00000000775A0000-0x0000000077749000-memory.dmp

Filesize
1.7MB

Download
memory/2556-5-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2556-11-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2740-3-0x00000000775A1000-0x00000000776A2000-memory.dmp

Filesize
1.0MB

Download
memory/2740-2-0x0000000000300000-0x000000000030D000-memory.dmp

Filesize
52KB

Download
memory/2740-4-0x00000000775A0000-0x0000000077749000-memory.dmp

Filesize
1.7MB

Download
memory/2740-7-0x0000000000300000-0x000000000030D000-memory.dmp

Filesize
52KB

Download