guloader | 96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 01:25

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General

Target
96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe
Size 631KB
Sample240611-btaktszalk
SHA256 96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20
MD5 3241e9dc842b78c707935a1c82bbe906
SHA1 925707f0c8b49c65873e6677b1075b97df866719
SHA512 93e6084100e2b8302249926c5737054dd0c3675ec481a4099f9c8cdb76fa630aa192c8f4548b147d211fc0261d70e90b2e2f66b41f85d8183ac87eb3479e1a6c
SSDEEP 12288:f8oTmXIyx0DtKbV9Xaftvk6IAEy9UhK+8TAQ5+rROXP:EoTW0RPC6kyK104If
MD5 SHA1 SHA512 SSDEEP

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

pid	Process
4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe
2248	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4612 set thread context of 2248	4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe	80

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\plasticitet\adoptionens.spo	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.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

pid	Process
4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 2248	4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe	80
PID 4612 wrote to memory of 2248	4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe	80
PID 4612 wrote to memory of 2248	4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe	80
PID 4612 wrote to memory of 2248	4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe	80
PID 4612 wrote to memory of 2248	4612	96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe	80

C:\Users\Admin\AppData\Local\Temp\96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe
"C:\Users\Admin\AppData\Local\Temp\96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Users\Admin\AppData\Local\Temp\96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe
  "C:\Users\Admin\AppData\Local\Temp\96cf5dfbfad599910d48cf01f8cdc77ac3ab5f9e39e3f044bad94a28126c2f20.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2248

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsc97BD.tmp\System.dll
Size 11KB
SHA256 a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77
MD5 b0c77267f13b2f87c084fd86ef51ccfc
SHA1 f7543f9e9b4f04386dfbf33c38cbed1bf205afb3
SHA512 f2b57a2eea00f52a3c7080f4b5f2bb85a7a9b9f16d12da8f8ff673824556c62a0f742b72be0fd82a2612a4b6dbd7e0fdc27065212da703c2f7e28d199696f66e
SSDEEP 192:4PtkiQJr7jHYT87RfwXQ6YSYtOuVDi7IsFW14Ll8CO:H78TQIgGCDp14LGC
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2248-13-0x00000000016E0000-0x0000000003AAC000-memory.dmp

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memory/2248-14-0x0000000000480000-0x00000000016D4000-memory.dmp

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memory/2248-17-0x00000000016E0000-0x0000000003AAC000-memory.dmp

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memory/4612-10-0x0000000004A50000-0x0000000006E1C000-memory.dmp

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memory/4612-11-0x0000000077271000-0x0000000077391000-memory.dmp

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memory/4612-12-0x0000000073EC4000-0x0000000073EC5000-memory.dmp

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memory/4612-15-0x0000000004A50000-0x0000000006E1C000-memory.dmp

Download

memory/4612-22-0x0000000004A50000-0x0000000006E1C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads