guloader | c3be16e52a0fd48ac7a64b992dbdc6566c5e6d523466c91cce1109c20d64fc6e

General

Target

New Order.exe
Size

747KB
MD5

c0bed465b5df10e26d58f8dbba87a7e6
SHA1

49611ce1c8a200ac404c7cae77d81702d64192eb
SHA256

c3be16e52a0fd48ac7a64b992dbdc6566c5e6d523466c91cce1109c20d64fc6e
SHA512

751f3b2a4079dcbb00045effa35cac0c156a554d809800ef6b96b213a24cecb10b77b0ed562a6e62e4b27a4b992d67fc1792de9767e9262be95153a1731a22a5
SSDEEP

12288:dT58++c2/p0FdmxxSK1qwQWkOvdK9k7Yk13QpWm0KFymle/+bO3Y9M4X92C:dT58+86wxx51f0kNKFLUmbOltC

Score

10^/10

guloader collection discovery downloader spyware stealer

Malware Config

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
4940	New Order.exe
4940	New Order.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Order.exe

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

Web Service

T1102

flow	ioc
24	drive.google.com
25	drive.google.com

Looks up external IP address via web service 3 IoCs

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

flow	ioc
37	reallyfreegeoip.org
38	reallyfreegeoip.org
35	checkip.dyndns.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4560	New Order.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4940	New Order.exe
4560	New Order.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	New Order.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New Order.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4560	New Order.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4940	New Order.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4560	New Order.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 4560	4940	New Order.exe	89
PID 4940 wrote to memory of 4560	4940	New Order.exe	89
PID 4940 wrote to memory of 4560	4940	New Order.exe	89
PID 4940 wrote to memory of 4560	4940	New Order.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Order.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2211717155-842865201-3404093980-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Order.exe

C:\Users\Admin\AppData\Local\Temp\New Order.exe
"C:\Users\Admin\AppData\Local\Temp\New Order.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Users\Admin\AppData\Local\Temp\New Order.exe
  "C:\Users\Admin\AppData\Local\Temp\New Order.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:4560

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

2

T1552

Credentials In Files

2

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nskAC30.tmp\System.dll

Filesize
12KB

MD5
d968cb2b98b83c03a9f02dd9b8df97dc

SHA1
d784c9b7a92dce58a5038beb62a48ff509e166a0

SHA256
a4ec98011ef99e595912718c1a1bf1aa67bfc2192575729d42f559d01f67b95c

SHA512
2ee41dc68f329a1519a8073ece7d746c9f3bf45d8ef3b915deb376af37e26074134af5f83c8af0fe0ab227f0d1acca9f37e5ca7ae37c46c3bcc0331fe5e2b97e

Download Submit
memory/4560-38-0x000000007252E000-0x000000007252F000-memory.dmp

Filesize
4KB

Download
memory/4560-20-0x0000000077838000-0x0000000077839000-memory.dmp

Filesize
4KB

Download
memory/4560-39-0x00000000005D0000-0x00000000005EE000-memory.dmp

Filesize
120KB

Download
memory/4560-40-0x00000000380F0000-0x0000000038694000-memory.dmp

Filesize
5.6MB

Download
memory/4560-37-0x0000000001830000-0x0000000005382000-memory.dmp

Filesize
59.3MB

Download
memory/4560-21-0x0000000077855000-0x0000000077856000-memory.dmp

Filesize
4KB

Download
memory/4560-34-0x00000000005D0000-0x0000000001824000-memory.dmp

Filesize
18.3MB

Download
memory/4560-35-0x00000000777B1000-0x00000000778D1000-memory.dmp

Filesize
1.1MB

Download
memory/4560-36-0x00000000005D0000-0x0000000001824000-memory.dmp

Filesize
18.3MB

Download
memory/4560-50-0x0000000072520000-0x0000000072CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-48-0x000000007252E000-0x000000007252F000-memory.dmp

Filesize
4KB

Download
memory/4560-47-0x0000000038EF0000-0x0000000038EFA000-memory.dmp

Filesize
40KB

Download
memory/4560-19-0x0000000001830000-0x0000000005382000-memory.dmp

Filesize
59.3MB

Download
memory/4560-42-0x0000000035E20000-0x0000000035EBC000-memory.dmp

Filesize
624KB

Download
memory/4560-43-0x0000000072520000-0x0000000072CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-44-0x00000000386E0000-0x0000000038730000-memory.dmp

Filesize
320KB

Download
memory/4560-45-0x0000000038BE0000-0x0000000038DA2000-memory.dmp

Filesize
1.8MB

Download
memory/4560-46-0x0000000038E00000-0x0000000038E92000-memory.dmp

Filesize
584KB

Download
memory/4940-18-0x0000000074495000-0x0000000074496000-memory.dmp

Filesize
4KB

Download
memory/4940-17-0x00000000777B1000-0x00000000778D1000-memory.dmp

Filesize
1.1MB

Download
memory/4940-16-0x00000000777B1000-0x00000000778D1000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing