guloader | f3417f98d7feb3902bd789aabbb47155800665e5b5009c8941eab4f986255648

General

Target

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
Size

539KB
MD5

4183d5786fe2a0e4563c5a0cf57d92f6
SHA1

2fc414de34b92a56712c6684c84af970037b81f5
SHA256

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400
SHA512

8d86235c4d4060d656a1a2349a43e7ddfc9d036d476dbf8b9d404af060b754eb33bdc74ee03881f769fd19a60b87daefc696e48ee33f40b1e24f358dfe9a87fc
SSDEEP

12288:DMq47lWuTq/3dOxotjTps+ZHmkHN3HiPCpfBVxe:I/WuTsoWt1HnHpHiwVI

Score

10^/10

guloader snakekeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.mgcconstrucciones.com.co
Port:
587
Username:
[email protected]
Password:
Mgonzalez@2021.
Email To:
[email protected]

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2612-456-0x0000000000450000-0x00000000014B2000-memory.dmp	family_snakekeylogger
behavioral1/memory/2612-458-0x0000000000450000-0x0000000000476000-memory.dmp	family_snakekeylogger

Loads dropped DLL 2 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

pid	Process
2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow	ioc
14	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

pid	Process
2612	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exed7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

pid	Process
2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
2612	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

description	pid	Process	procid_target
PID 2116 set thread context of 2612	2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe	31

Drops file in Windows directory 1 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

description	ioc	Process
File opened for modification	C:\Windows\resources\Trnregimenternes\totalsanerende.Obs202	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.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

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exed7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

pid	Process
2612	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
2612	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

pid	Process
2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

description	pid	Process
Token: SeDebugPrivilege	2612	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

description	pid	Process	procid_target
PID 2116 wrote to memory of 2612	2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe	31
PID 2116 wrote to memory of 2612	2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe	31
PID 2116 wrote to memory of 2612	2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe	31
PID 2116 wrote to memory of 2612	2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe	31
PID 2116 wrote to memory of 2612	2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe	31
PID 2116 wrote to memory of 2612	2116	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe	31

outlook_office_path 1 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

outlook_win_path 1 IoCs

Processes:

d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe

C:\Users\Admin\AppData\Local\Temp\d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
"C:\Users\Admin\AppData\Local\Temp\d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.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:2116
- C:\Users\Admin\AppData\Local\Temp\d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe
  "C:\Users\Admin\AppData\Local\Temp\d7439af0827a632fe9730a7dd2585a2fb5b0af71c312cdeb49e6a738a9133400.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2612

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

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Downloads

C:\Users\Admin\Music\incinerations.lnk

Filesize
738B

MD5
1235ef9c5acf4af7ef7c55eab6081365

SHA1
dd302a92b12cf8ac7a232be73ee7ed19076d01b5

SHA256
2af9c0c945c9088c0976c7b8a63990447a719c591b2adad5347822e50610df0a

SHA512
ae723102942ba7ed1e64ff734b4a8a5830e337177bba7236ef80f5758cf3b5153eb3800cc12a3d30429d6f4bbc9a1dd62391ed88d964ff3d5a20816ad4caf981

Download Submit
\Users\Admin\AppData\Local\Temp\nsjAD12.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
memory/2116-429-0x0000000003400000-0x0000000005951000-memory.dmp

Filesize
37.3MB

Download
memory/2116-430-0x0000000003400000-0x0000000005951000-memory.dmp

Filesize
37.3MB

Download
memory/2116-432-0x0000000077BE0000-0x0000000077D89000-memory.dmp

Filesize
1.7MB

Download
memory/2116-431-0x0000000077BE1000-0x0000000077CE2000-memory.dmp

Filesize
1.0MB

Download
memory/2116-434-0x0000000003400000-0x0000000005951000-memory.dmp

Filesize
37.3MB

Download
memory/2612-433-0x0000000077BE0000-0x0000000077D89000-memory.dmp

Filesize
1.7MB

Download
memory/2612-456-0x0000000000450000-0x00000000014B2000-memory.dmp

Filesize
16.4MB

Download
memory/2612-458-0x0000000000450000-0x0000000000476000-memory.dmp

Filesize
152KB

Download
memory/2612-460-0x0000000077BE0000-0x0000000077D89000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads