guloader | d4d30acde6fa4db431b90817911b44d21c65fc1fa72744625bccafe3899869bc

General

Target

9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe
Size

116KB
MD5

9ce158db3a35f68975710ad534de747c
SHA1

3bd2c5f7af8bd0686844c7e933994a926980d7b1
SHA256

d4d30acde6fa4db431b90817911b44d21c65fc1fa72744625bccafe3899869bc
SHA512

8b89fdab399a0ea02ecd4cbad69c570af4b16f826ecc0ca7c6bf81e48ec0651cd8694c9aa0526f1c1ea47f36fc9cecd2f990ae93378c9a2feca86963a2c51c5c
SSDEEP

768:/pYYXgmJWdD+LirNYYLwIUkrQBFfG5Hdp6/UgejMHouSl4rv4+Ms91Kb3B3ZeUrN:htZQFwyg6b6/eMH9SCvlMvye

Score

10^/10

guloader discovery downloader persistence

Malware Config

Signatures

Guloader family
guloader
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

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	ieinstal.exe

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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\amalienborgs = "C:\\Users\\Admin\\AppData\\Local\\Temp\\subsidire\\Chancy.exe"	ieinstal.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe
1500	ieinstal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2412 set thread context of 1500	2412	9ce158db3a35f68975710ad534de747c_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	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ieinstal.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 1500	2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe	31
PID 2412 wrote to memory of 1500	2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe	31
PID 2412 wrote to memory of 1500	2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe	31
PID 2412 wrote to memory of 1500	2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe	31
PID 2412 wrote to memory of 1500	2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe	31
PID 2412 wrote to memory of 1500	2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe	31
PID 2412 wrote to memory of 1500	2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe	31
PID 2412 wrote to memory of 1500	2412	9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe"
1⤵
- Checks QEMU agent file
- 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:2412
- C:\Program Files (x86)\internet explorer\ieinstal.exe
  "C:\Users\Admin\AppData\Local\Temp\9ce158db3a35f68975710ad534de747c_JaffaCakes118.exe"
  2⤵
  - Checks QEMU agent file
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:1500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1500-4-0x0000000000150000-0x0000000000250000-memory.dmp

Filesize
1024KB

Download
memory/1500-7-0x0000000077220000-0x00000000773C9000-memory.dmp

Filesize
1.7MB

Download
memory/2412-2-0x0000000000300000-0x0000000000315000-memory.dmp

Filesize
84KB

Download
memory/2412-3-0x0000000077221000-0x0000000077322000-memory.dmp

Filesize
1.0MB

Download
memory/2412-6-0x0000000000300000-0x0000000000315000-memory.dmp

Filesize
84KB

Download
memory/2412-5-0x0000000077220000-0x00000000773C9000-memory.dmp

Filesize
1.7MB

Download
memory/2412-9-0x0000000000300000-0x0000000000315000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads