guloader | 7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28/09/2024, 01:28

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General

Target

7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe
Size

546KB
MD5

09646b466d4203f0a605120c10248654
SHA1

e1f6e1bec33b598963a6e017d41e28b72a6e9bbd
SHA256

7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f
SHA512

74414f447846f9a51a381a30ab6d08b66cf68f8fcc2ee42ce0fdf41e4914c4dc2b4ab5bd26d85e71f92e3d0ce7badb274ec68973a74506caca26f60d60d80f24
SSDEEP

12288:qX69L27aMq4PfZ6Vt1wFHLesCqew8wmjAjPJbbiEUW34/:qX69Ln4Pfc9whLTCkmUjBqEUW

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\hulas.flo	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe
432	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5004 set thread context of 432	5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe	84

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	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 432	5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe	84
PID 5004 wrote to memory of 432	5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe	84
PID 5004 wrote to memory of 432	5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe	84
PID 5004 wrote to memory of 432	5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe	84
PID 5004 wrote to memory of 432	5004	7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe	84

C:\Users\Admin\AppData\Local\Temp\7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe
"C:\Users\Admin\AppData\Local\Temp\7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Users\Admin\AppData\Local\Temp\7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe
  "C:\Users\Admin\AppData\Local\Temp\7110772ac28b158130afc68ae0f00bdca6832cc826f7f2fbf38fd373feb16b2f.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

C:\Users\Admin\AppData\Local\Temp\nsa7B9A.tmp\System.dll

Filesize
12KB

MD5
4add245d4ba34b04f213409bfe504c07

SHA1
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09

SHA256
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706

SHA512
1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

Download Submit
memory/432-16-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/432-15-0x0000000001660000-0x000000000651A000-memory.dmp

Filesize
78.7MB

Download
memory/432-17-0x0000000077268000-0x0000000077269000-memory.dmp

Filesize
4KB

Download
memory/432-18-0x0000000077285000-0x0000000077286000-memory.dmp

Filesize
4KB

Download
memory/432-22-0x00000000771E1000-0x0000000077301000-memory.dmp

Filesize
1.1MB

Download
memory/432-23-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/5004-12-0x00000000771E1000-0x0000000077301000-memory.dmp

Filesize
1.1MB

Download
memory/5004-14-0x0000000073EC5000-0x0000000073EC6000-memory.dmp

Filesize
4KB

Download
memory/5004-13-0x00000000771E1000-0x0000000077301000-memory.dmp

Filesize
1.1MB

Download