guloader | 2e6c8c289deb4e04aa77b08d453e8bb63ece89fa9311b7fdafb3f68ffba79992

General

Target

EFT Payment Advice.exe
Size

128KB
MD5

1c4f0c8a3980ddb659d4ad8e91d7618d
SHA1

056cc5e13f2417bab9252d8119ac2bccfaee40fd
SHA256

7ff4fa75489bccc3b2530358950665e594636699d68c07eb742cba4e70a7668c
SHA512

5a55f59808e23ba7ed00f35ac64342d594987464a2a954107c5ecfe0b9c86eb6b58e3c18db95570a6d2c43877f199f986bb0f3a5a0190280b2a02b11019b79b2
SSDEEP

1536:JtTodMBHMVqPg0V9vCPuEfeuAdCA8KCkS88iFub:3pqkNV1CPuqend38bqs

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	EFT Payment Advice.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	EFT Payment Advice.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Ministr = "C:\\Users\\Admin\\AppData\\Local\\Temp\\featherbird\\sammenbr.vbs"	EFT Payment Advice.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2752	EFT Payment Advice.exe
2740	EFT Payment Advice.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2740	2752	EFT Payment Advice.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	EFT Payment Advice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EFT Payment Advice.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2752	EFT Payment Advice.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2752	EFT Payment Advice.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2752 wrote to memory of 2740	2752	EFT Payment Advice.exe	30
PID 2752 wrote to memory of 2740	2752	EFT Payment Advice.exe	30
PID 2752 wrote to memory of 2740	2752	EFT Payment Advice.exe	30
PID 2752 wrote to memory of 2740	2752	EFT Payment Advice.exe	30
PID 2752 wrote to memory of 2740	2752	EFT Payment Advice.exe	30

C:\Users\Admin\AppData\Local\Temp\EFT Payment Advice.exe
"C:\Users\Admin\AppData\Local\Temp\EFT Payment Advice.exe"
1⤵
- Checks QEMU agent file
- Adds Run key to start application
- 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:2752
- C:\Users\Admin\AppData\Local\Temp\EFT Payment Advice.exe
  "C:\Users\Admin\AppData\Local\Temp\EFT Payment Advice.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2740

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabDE7F.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarDE91.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2740-6-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2740-9-0x0000000077900000-0x0000000077AA9000-memory.dmp

Filesize
1.7MB

Download
memory/2740-10-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2740-227-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2752-2-0x0000000000310000-0x0000000000322000-memory.dmp

Filesize
72KB

Download
memory/2752-3-0x0000000077901000-0x0000000077A02000-memory.dmp

Filesize
1.0MB

Download
memory/2752-4-0x0000000077900000-0x0000000077AA9000-memory.dmp

Filesize
1.7MB

Download
memory/2752-5-0x0000000000310000-0x0000000000322000-memory.dmp

Filesize
72KB

Download
memory/2752-8-0x0000000000310000-0x0000000000322000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads