guloader | 3d8e3c85b8910e3dbc426392456ba630c4ee3a6c0a5d93c818e0f5f80e723e5e

General

Target

5445057585bd359cb8798d33c4d5f2b9.exe
Size

184KB
MD5

5445057585bd359cb8798d33c4d5f2b9
SHA1

adffbbcd0611cc7a52f8d23c71e2a0a3add19d8f
SHA256

3d8e3c85b8910e3dbc426392456ba630c4ee3a6c0a5d93c818e0f5f80e723e5e
SHA512

d8eff83da3c07d0ba19b29f0a065a599bc615a09980b2558974a159ec05f3e3b445e31a4bdb24ce71ec0f9148593af5ceb7dfa468f9c89fe4ee413db50465272
SSDEEP

1536:RBI0auxZD+WtPIRo0ErH4F//yyubFy0aF8:RPjl+WtPI9fk9fJ

Score

10^/10

guloader downloader persistence

Malware Config

Signatures

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

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	5445057585bd359cb8798d33c4d5f2b9.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	ieinstal.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\VOILEFURRO = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Advotere\\deathcupreducer.exe"	ieinstal.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3020	5445057585bd359cb8798d33c4d5f2b9.exe
2972	ieinstal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3020	5445057585bd359cb8798d33c4d5f2b9.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3020	5445057585bd359cb8798d33c4d5f2b9.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28
PID 3020 wrote to memory of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28
PID 3020 wrote to memory of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28
PID 3020 wrote to memory of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28
PID 3020 wrote to memory of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28
PID 3020 wrote to memory of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28
PID 3020 wrote to memory of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28
PID 3020 wrote to memory of 2972	3020	5445057585bd359cb8798d33c4d5f2b9.exe	28

C:\Users\Admin\AppData\Local\Temp\5445057585bd359cb8798d33c4d5f2b9.exe
"C:\Users\Admin\AppData\Local\Temp\5445057585bd359cb8798d33c4d5f2b9.exe"
1⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Program Files (x86)\internet explorer\ieinstal.exe
  "C:\Users\Admin\AppData\Local\Temp\5445057585bd359cb8798d33c4d5f2b9.exe"
  2⤵
  - Checks QEMU agent file
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3C428B1A3E5F57D887EC4B864FAC5DCC

Filesize
914B

MD5
e4a68ac854ac5242460afd72481b2a44

SHA1
df3c24f9bfd666761b268073fe06d1cc8d4f82a4

SHA256
cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f

SHA512
5622207e1ba285f172756f6019af92ac808ed63286e24dfecc1e79873fb5d140f1ceb7133f2476e89a5f75f711f9813a9fbb8fd5287f64adfdcc53b864f9bdc5

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3C428B1A3E5F57D887EC4B864FAC5DCC

Filesize
252B

MD5
57b2f87904152c8275a3a3639daaaefd

SHA1
62db956bac5bc0b1f3bd4326c49326575065bbd5

SHA256
5c4a4c2284874048c15f4ea6ca3eb80047c05b79fdca82565887df126fdca636

SHA512
d3b7bfd9f3386839d325dec045fcc204c199b1460320c8e1ede196b88ec905e4ccde419b13c50e3470ce53558d01e5c5b657ce4cfbcd6ecb3c2289fb19b2c20e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
242B

MD5
666f6bbb300915c45f8803bd0a7a457a

SHA1
f4dc6a0b2cb131f847e837d4af7753329a664441

SHA256
fd85a93a9dc3a6281d0582c1b0e268f17093703179aca35b49083dcd0c7243db

SHA512
c106bc93c2e4c42ab2ac686669c9d564762a919772d038d928e33cd6d6c1bf5e4d5974222b576ee7986e373e1eca32dbbe979353854cba2e4ce6d0be75d82db7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar9F9E.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
memory/2972-295-0x0000000076D90000-0x0000000076F39000-memory.dmp

Filesize
1.7MB

Download
memory/2972-10-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2972-9-0x0000000076D90000-0x0000000076F39000-memory.dmp

Filesize
1.7MB

Download
memory/2972-6-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2972-3-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/3020-7-0x0000000000430000-0x0000000000449000-memory.dmp

Filesize
100KB

Download
memory/3020-5-0x0000000076F80000-0x0000000077056000-memory.dmp

Filesize
856KB

Download
memory/3020-2-0x0000000000430000-0x0000000000449000-memory.dmp

Filesize
100KB

Download
memory/3020-4-0x0000000076D90000-0x0000000076F39000-memory.dmp

Filesize
1.7MB

Download
memory/3020-1036-0x0000000000430000-0x0000000000449000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads