guloader | c6fc27b7f1eddba996aae782de62c487de64cd1f628e9fa4e72fc3c7cf4cd9bb

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
30-12-2024 19:05

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General

Target

New Inquiry/New Inquiry.exe
Size

296KB
MD5

4c77e8e1f6e34cd556d3371978ae2171
SHA1

0ad73e86f57e6b6936b65bf095c597f593b7fc39
SHA256

894159a80304d12d54e28bc4ad52eae517bd2aaededba933fd27f1c46cfb4598
SHA512

30942ec29491ca6ffbc50071454386e292c753918741d0dc519f93bb8832c28128d4b04b989ed119cd99b06d0db5cabc7532db9262cdb2a9a714e127395ff727
SSDEEP

6144:M6bAcJ3iiPiaIj0hkkYYuwpqgCRlif7zZdy5ad2R3thc91Hd:DjIj0hkk8iZdyZe1Hd

Score

10^/10

guloader discovery downloader

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	New Inquiry.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	New Inquiry.exe

Loads dropped DLL 1 IoCs

pid	Process
2352	New Inquiry.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2352	New Inquiry.exe
2812	New Inquiry.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2352 set thread context of 2812	2352	New Inquiry.exe	31

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Undividual\Tekstilarbejderens.lnk	New Inquiry.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	New Inquiry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New Inquiry.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2352	New Inquiry.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2812	2352	New Inquiry.exe	31
PID 2352 wrote to memory of 2812	2352	New Inquiry.exe	31
PID 2352 wrote to memory of 2812	2352	New Inquiry.exe	31
PID 2352 wrote to memory of 2812	2352	New Inquiry.exe	31
PID 2352 wrote to memory of 2812	2352	New Inquiry.exe	31

C:\Users\Admin\AppData\Local\Temp\New Inquiry\New Inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\New Inquiry\New Inquiry.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\New Inquiry\New Inquiry.exe
  "C:\Users\Admin\AppData\Local\Temp\New Inquiry\New Inquiry.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsdBEAE.tmp\System.dll

Filesize
11KB

MD5
8b3830b9dbf87f84ddd3b26645fed3a0

SHA1
223bef1f19e644a610a0877d01eadc9e28299509

SHA256
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37

SHA512
d13cfd98db5ca8dc9c15723eee0e7454975078a776bce26247228be4603a0217e166058ebadc68090afe988862b7514cb8cb84de13b3de35737412a6f0a8ac03

Download Submit
memory/2352-10-0x0000000003970000-0x0000000003A71000-memory.dmp

Filesize
1.0MB

Download
memory/2352-11-0x0000000003970000-0x0000000003A71000-memory.dmp

Filesize
1.0MB

Download
memory/2352-12-0x0000000077B01000-0x0000000077C02000-memory.dmp

Filesize
1.0MB

Download
memory/2352-13-0x0000000077B00000-0x0000000077CA9000-memory.dmp

Filesize
1.7MB

Download
memory/2352-28-0x0000000003970000-0x0000000003A71000-memory.dmp

Filesize
1.0MB

Download
memory/2812-14-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2812-15-0x0000000077B00000-0x0000000077CA9000-memory.dmp

Filesize
1.7MB

Download
memory/2812-16-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2812-19-0x0000000077B00000-0x0000000077CA9000-memory.dmp

Filesize
1.7MB

Download
memory/2812-17-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download