guloader | 05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3

General

Target

05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
Size

370KB
MD5

18776562551c3adcdc9f49c013772fbd
SHA1

ee124b7cd0296b4e524454ab12059b8be60bc002
SHA256

05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3
SHA512

c16b5c1c7822af0bee4d5f9707e00a4513e00b0925844fa3c8ba8afbaf7172d2b185dfaf8b1bc1fdce00c6a44d62d34d5bf611c0a2219de0a030ea2f64767364
SSDEEP

6144:MDGIRuoQiOd9kyzCiY1vJ/BnA+XCzW8w3hRTMiZ4rbcevq:zItQiOdCyzItA+XLRQiZWC

Score

10^/10

guloader downloader

Malware Config

Signatures

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

Loads dropped DLL 4 IoCs

Processes:

05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

pid	process
2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

pid	process
2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
2676	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

description	pid	process	target process
PID 2204 set thread context of 2676	2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

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

System Information Discovery
T1082
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

pid process

2204 05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

description	pid	process	target process
PID 2204 wrote to memory of 2676	2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
PID 2204 wrote to memory of 2676	2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
PID 2204 wrote to memory of 2676	2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
PID 2204 wrote to memory of 2676	2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
PID 2204 wrote to memory of 2676	2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
PID 2204 wrote to memory of 2676	2204	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe	05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe

C:\Users\Admin\AppData\Local\Temp\05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
"C:\Users\Admin\AppData\Local\Temp\05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2204

C:\Users\Admin\AppData\Local\Temp\05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe
"C:\Users\Admin\AppData\Local\Temp\05df6f3430171cb7db9fa5f6782b8f67b14079b6e1dffbb013c33ca91b1ad5d3.exe"
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2676

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsy32B5.tmp\BgImage.dll

Filesize
7KB

MD5
143c1b18ccd1ab2ceed02caf0e06ef8a

SHA1
b59d780e0a85f816b41aa657d4a643d77bd20a99

SHA256
8920afae5d9c06f6ba1f254a1e32ac2acfb0fdb11ab2158cfe880a191045e3d7

SHA512
91bd09610679224a7774044b16054721567385d3faa241e72b51f27ef660870f7282e887016df492d5b3ab3b6d9c130e036258c4f27d5ca4cc3a12b76ff71b39

Download Submit
\Users\Admin\AppData\Local\Temp\nsy32B5.tmp\System.dll

Filesize
11KB

MD5
b0c77267f13b2f87c084fd86ef51ccfc

SHA1
f7543f9e9b4f04386dfbf33c38cbed1bf205afb3

SHA256
a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77

SHA512
f2b57a2eea00f52a3c7080f4b5f2bb85a7a9b9f16d12da8f8ff673824556c62a0f742b72be0fd82a2612a4b6dbd7e0fdc27065212da703c2f7e28d199696f66e

Download Submit
\Users\Admin\AppData\Local\Temp\nsy32B5.tmp\nsDialogs.dll

Filesize
9KB

MD5
eac1c3707970fe7c71b2d760c34763fa

SHA1
f275e659ad7798994361f6ccb1481050aba30ff8

SHA256
062c75ad650548750564ffd7aef8cd553773b5c26cae7f25a5749b13165194e3

SHA512
3415bd555cf47407c0ae62be0dbcba7173d2b33a371bf083ce908fc901811adb888b7787d11eb9d99a1a739cbd9d1c66e565db6cd678bdadaf753fbda14ffd09

Download Submit
memory/2204-34-0x00000000040F0000-0x00000000057C0000-memory.dmp

Filesize
22.8MB

Download
memory/2204-35-0x0000000077911000-0x0000000077A12000-memory.dmp

Filesize
1.0MB

Download
memory/2204-36-0x0000000077910000-0x0000000077AB9000-memory.dmp

Filesize
1.7MB

Download
memory/2204-39-0x00000000040F0000-0x00000000057C0000-memory.dmp

Filesize
22.8MB

Download
memory/2204-45-0x00000000040F0000-0x00000000057C0000-memory.dmp

Filesize
22.8MB

Download
memory/2676-37-0x0000000077910000-0x0000000077AB9000-memory.dmp

Filesize
1.7MB

Download
memory/2676-38-0x0000000000470000-0x00000000014D2000-memory.dmp

Filesize
16.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads