guloader | cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a

General

Target

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
Size

1.3MB
MD5

ee518fda96d7cb89bad8783aeab7e6fa
SHA1

5dced89b75ece47f8e8c0b19082ed97448f83964
SHA256

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a
SHA512

b92c661cc02640f4cbc1641b78005d84d176305af07caa92cb26441b0fcb831c31c79db7b5af69d2e331bf5ea1d28f9aa790fc7127cb58fae2224b111275f13b
SSDEEP

24576:d9Q0lIVTRJLpdCW9zTIvwS60x6Hcy/U77VaaG8uosbrDqa1VHWTcSdmWDxbLn/oY:rQ0lsRdpdBTIYS6VDM77YoOrDX1l2xbv

Score

10^/10

guloader downloader

Malware Config

Signatures

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

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

pid process

2060 cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

3 drive.google.com
5 drive.google.com
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

pid process

2632 cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

flow	ioc
3	drive.google.com
5	drive.google.com

pid	process
2632	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.execd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

pid	process
2060	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
2632	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

description	pid	process	target process
PID 2060 set thread context of 2632	2060	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

Drops file in Program Files directory 1 IoCs

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\konvoluterer\Forsikringsinspektrer.ini	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

Drops file in Windows directory 1 IoCs

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

description	ioc	process
File opened for modification	C:\Windows\mycelian\sempitern.ini	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

pid process

2632 cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

pid process

2060 cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

pid	process
2632	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

description	pid	process	target process
PID 2060 wrote to memory of 2632	2060	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
PID 2060 wrote to memory of 2632	2060	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
PID 2060 wrote to memory of 2632	2060	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
PID 2060 wrote to memory of 2632	2060	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
PID 2060 wrote to memory of 2632	2060	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
PID 2060 wrote to memory of 2632	2060	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe	cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe

C:\Users\Admin\AppData\Local\Temp\cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
"C:\Users\Admin\AppData\Local\Temp\cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2060

C:\Users\Admin\AppData\Local\Temp\cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe
"C:\Users\Admin\AppData\Local\Temp\cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a.exe"
2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2632

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nst2E05.tmp\System.dll

Filesize
11KB

MD5
b8992e497d57001ddf100f9c397fcef5

SHA1
e26ddf101a2ec5027975d2909306457c6f61cfbd

SHA256
98bcd1dd88642f4dd36a300c76ebb1ddfbbbc5bfc7e3b6d7435dc6d6e030c13b

SHA512
8823b1904dccfaf031068102cb1def7958a057f49ff369f0e061f1b4db2090021aa620bb8442a2a6ac9355bb74ee54371dc2599c20dc723755a46ede81533a3c

Download Submit
memory/2060-33-0x00000000038C0000-0x00000000058E1000-memory.dmp

Filesize
32.1MB

Download
memory/2060-34-0x0000000077AF1000-0x0000000077BF2000-memory.dmp

Filesize
1.0MB

Download
memory/2060-35-0x0000000077AF0000-0x0000000077C99000-memory.dmp

Filesize
1.7MB

Download
memory/2060-38-0x00000000038C0000-0x00000000058E1000-memory.dmp

Filesize
32.1MB

Download
memory/2060-62-0x00000000038C0000-0x00000000058E1000-memory.dmp

Filesize
32.1MB

Download
memory/2632-36-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2632-37-0x0000000077AF0000-0x0000000077C99000-memory.dmp

Filesize
1.7MB

Download
memory/2632-39-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2632-61-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2632-63-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads