guloader | 6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54

General

Target

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
Size

568KB
MD5

62134cc34c58682721cb5bd2a9ba3624
SHA1

a650b3507161f8d705b183db6a965307d95625f4
SHA256

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54
SHA512

60de740c1ab5cd301a41a0ea483bbef28e3005acd73d61e808a0510cc95e746f25b18f39503110b80e5834275df9d1702639f0ed7ba90fadeba7809a9a9a4a82
SSDEEP

12288:32EITCKwUDsCypz+ZfyimdUTPhBDJxqmd3ZhZq:3wTKUDvypKJyihTj7qmdPZq

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Loads dropped DLL 1 IoCs

Processes:

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

pid process

3056 6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

pid	process
3056	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
2764	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

description	pid	process	target process
PID 3056 set thread context of 2764	3056	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

Drops file in Windows directory 1 IoCs

Processes:

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

description	ioc	process
File opened for modification	C:\Windows\resources\0409\slnger\barometerstandenes.san	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.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

Processes:

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

pid process

3056 6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

description	pid	process	target process
PID 3056 wrote to memory of 2764	3056	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
PID 3056 wrote to memory of 2764	3056	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
PID 3056 wrote to memory of 2764	3056	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
PID 3056 wrote to memory of 2764	3056	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
PID 3056 wrote to memory of 2764	3056	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
PID 3056 wrote to memory of 2764	3056	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe	6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe

C:\Users\Admin\AppData\Local\Temp\6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
"C:\Users\Admin\AppData\Local\Temp\6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe"
1⤵
- 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:3056
- C:\Users\Admin\AppData\Local\Temp\6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe
  "C:\Users\Admin\AppData\Local\Temp\6d7f0587ad61a77009ec4d739d3ffd3f74e0ab8a572913812bef6b8c2b89ea54.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

C:\Users\Admin\AppData\Local\Temp\Cab9C8F.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar9D2E.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Users\Admin\AppData\Local\Temp\nst2260.tmp\System.dll

Filesize
11KB

MD5
75ed96254fbf894e42058062b4b4f0d1

SHA1
996503f1383b49021eb3427bc28d13b5bbd11977

SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

Download Submit
memory/2764-13-0x00000000778C0000-0x0000000077A69000-memory.dmp

Filesize
1.7MB

Download
memory/2764-15-0x00000000007E0000-0x0000000001842000-memory.dmp

Filesize
16.4MB

Download
memory/3056-9-0x0000000002C50000-0x00000000043C9000-memory.dmp

Filesize
23.5MB

Download
memory/3056-10-0x0000000002C50000-0x00000000043C9000-memory.dmp

Filesize
23.5MB

Download
memory/3056-11-0x00000000778C1000-0x00000000779C2000-memory.dmp

Filesize
1.0MB

Download
memory/3056-12-0x00000000778C0000-0x0000000077A69000-memory.dmp

Filesize
1.7MB

Download
memory/3056-14-0x0000000002C50000-0x00000000043C9000-memory.dmp

Filesize
23.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads