guloader | 476e1edbf802d57c9c64291dc1d9c05a7e6b1186c02c3d1115696cdb1bab1cd0

General

Target

4ba8df31e6bbf697d7c47542d7d528d0N.exe
Size

356KB
MD5

4ba8df31e6bbf697d7c47542d7d528d0
SHA1

2053f5b0352e8beeb754a993810d95ed2c87e9c2
SHA256

476e1edbf802d57c9c64291dc1d9c05a7e6b1186c02c3d1115696cdb1bab1cd0
SHA512

06a71a1d3bce66352f8c189afc5486bd5fa65b4f999d6152a36596fb487e585451476bf853218360b1609eebacab68c003e75858fc2a6154a658e3a34f3047c2
SSDEEP

6144:opSPrmVxkvgcX+jnfspFoAHj0iTnNTaiYupoZVv5wwFNLgwxn+GhsEA+86:lCVxHcX6neoAHjzTNGiYupovPFNL9EGT

Score

10^/10

guloader lokibot collection credential_access discovery downloader spyware stealer trojan

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Lokibot
Lokibot is a Password and CryptoCoin Wallet Stealer.
trojan spyware stealer lokibot
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Loads dropped DLL 1 IoCs

pid	Process
1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	4ba8df31e6bbf697d7c47542d7d528d0N.exe
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	4ba8df31e6bbf697d7c47542d7d528d0N.exe
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	4ba8df31e6bbf697d7c47542d7d528d0N.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

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

Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs

pid	Process
2764	4ba8df31e6bbf697d7c47542d7d528d0N.exe
2764	4ba8df31e6bbf697d7c47542d7d528d0N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe
2764	4ba8df31e6bbf697d7c47542d7d528d0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1292 set thread context of 2764	1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe	30

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\unhatingly\Opfattelsers.gaz	4ba8df31e6bbf697d7c47542d7d528d0N.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4ba8df31e6bbf697d7c47542d7d528d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4ba8df31e6bbf697d7c47542d7d528d0N.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2764	4ba8df31e6bbf697d7c47542d7d528d0N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	4ba8df31e6bbf697d7c47542d7d528d0N.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 2764	1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe	30
PID 1292 wrote to memory of 2764	1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe	30
PID 1292 wrote to memory of 2764	1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe	30
PID 1292 wrote to memory of 2764	1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe	30
PID 1292 wrote to memory of 2764	1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe	30
PID 1292 wrote to memory of 2764	1292	4ba8df31e6bbf697d7c47542d7d528d0N.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	4ba8df31e6bbf697d7c47542d7d528d0N.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	4ba8df31e6bbf697d7c47542d7d528d0N.exe

C:\Users\Admin\AppData\Local\Temp\4ba8df31e6bbf697d7c47542d7d528d0N.exe
"C:\Users\Admin\AppData\Local\Temp\4ba8df31e6bbf697d7c47542d7d528d0N.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:1292
- C:\Users\Admin\AppData\Local\Temp\4ba8df31e6bbf697d7c47542d7d528d0N.exe
  "C:\Users\Admin\AppData\Local\Temp\4ba8df31e6bbf697d7c47542d7d528d0N.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2212144002-1172735686-1556890956-1000\0f5007522459c86e95ffcc62f32308f1_5349ca0f-aec5-405f-83e0-aa034653cb76

Filesize
46B

MD5
d898504a722bff1524134c6ab6a5eaa5

SHA1
e0fdc90c2ca2a0219c99d2758e68c18875a3e11e

SHA256
878f32f76b159494f5a39f9321616c6068cdb82e88df89bcc739bbc1ea78e1f9

SHA512
26a4398bffb0c0aef9a6ec53cd3367a2d0abf2f70097f711bbbf1e9e32fd9f1a72121691bb6a39eeb55d596edd527934e541b4defb3b1426b1d1a6429804dc61

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2212144002-1172735686-1556890956-1000\0f5007522459c86e95ffcc62f32308f1_5349ca0f-aec5-405f-83e0-aa034653cb76

Filesize
46B

MD5
c07225d4e7d01d31042965f048728a0a

SHA1
69d70b340fd9f44c89adb9a2278df84faa9906b7

SHA256
8c136c7ae08020ad16fd1928e36ad335ddef8b85906d66b712fff049aa57dc9a

SHA512
23d3cea738e1abf561320847c39dadc8b5794d7bd8761b0457956f827a17ad2556118b909a3e6929db79980ccf156a6f58ac823cf88329e62417d2807b34b64b

Download Submit
\Users\Admin\AppData\Local\Temp\nsoAB0F.tmp\System.dll

Filesize
11KB

MD5
3f176d1ee13b0d7d6bd92e1c7a0b9bae

SHA1
fe582246792774c2c9dd15639ffa0aca90d6fd0b

SHA256
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

SHA512
0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

Download Submit
memory/1292-12-0x0000000076CE1000-0x0000000076DE2000-memory.dmp

Filesize
1.0MB

Download
memory/1292-13-0x0000000076CE0000-0x0000000076E89000-memory.dmp

Filesize
1.7MB

Download
memory/2764-14-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2764-15-0x0000000076CE0000-0x0000000076E89000-memory.dmp

Filesize
1.7MB

Download
memory/2764-16-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2764-39-0x0000000001470000-0x0000000004817000-memory.dmp

Filesize
51.7MB

Download

Analysis

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