guloader | 2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039

General

Target

2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
Size

748KB
MD5

3c7ef96f2186919b90f142e105648961
SHA1

8ebcf7eb6705ab3132d39ee0dfa086502251a4e8
SHA256

2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039
SHA512

dbae3f0aa744511c1a467be36fbe6363090071dd77c0c10e2dcef94ef0b72cddb5202b80530ebcf05b60aa79499f5c65ae8afb4e21b9f1df45564188f7c0677c
SSDEEP

12288:YF9NQk3J7EcrKNJlrUupNK3y38SeD83S1sAnCPB7SqxnE8UML789zUO9vVOI0emY:Q17FKrlrdjR3lRsxnSB7SqxnlGUOdb0G

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger

Downloads MZ/PE file 1 IoCs

flow	pid	Process
53	4492	Process not Found

Loads dropped DLL 2 IoCs

pid	Process
3556	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
3556	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.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-1-5-21-2656314083-4170277356-267438488-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
Key opened	\REGISTRY\USER\S-1-5-21-2656314083-4170277356-267438488-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
Key opened	\REGISTRY\USER\S-1-5-21-2656314083-4170277356-267438488-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

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

Web Service

T1102

flow	ioc
8	drive.google.com
9	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
25	checkip.dyndns.org
35	reallyfreegeoip.org
38	reallyfreegeoip.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2296	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3556	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
2296	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\bedvelsens\Reaccelerates.ske	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
File opened for modification	C:\Program Files (x86)\Common Files\rhesusbarnet\teenfully.bra	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
File opened for modification	C:\Program Files (x86)\Common Files\infarkt.pla	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
File opened for modification	C:\Program Files (x86)\Unelaborated.non	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\rothesay\Fallenternes.con	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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 3 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	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2812	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2296	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
2296	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3556	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 2296	3556	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	91
PID 3556 wrote to memory of 2296	3556	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	91
PID 3556 wrote to memory of 2296	3556	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	91
PID 3556 wrote to memory of 2296	3556	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2656314083-4170277356-267438488-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2656314083-4170277356-267438488-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe

C:\Users\Admin\AppData\Local\Temp\2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
"C:\Users\Admin\AppData\Local\Temp\2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Users\Admin\AppData\Local\Temp\2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.exe
  "C:\Users\Admin\AppData\Local\Temp\2df46544a8861e37d41d4141bf6e01627d2b6146d3ee9d14bb7fa1aeb196d039.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:2296

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODM0MTAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NTUzNjg2NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjEyMDUxNDExIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2812

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

Browser Information Discovery

1

T1217

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

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\Local\Temp\nsl9626.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

Download Submit
C:\Users\Public\Pictures\fedtlderstvles.lnk

Filesize
888B

MD5
d06393b96edd8b1d746fba13494575fc

SHA1
7bb5b792970b1b707f4d9b54d8d2004ca0bc2b91

SHA256
b27fbfcb2874a3b7bf4cccc7aab53a505f63f69d0e09c543dd98c3f29e7342d1

SHA512
ea88e854053568be247fc00e312fe442d22b96e337e944168a8f87722c56db230813001bfc530b41f6c6f9ccdf8bf48a1c59bb2a0ae5cdb86320c3a8deb8af2d

Download Submit
memory/2296-331-0x0000000000460000-0x00000000016B4000-memory.dmp

Filesize
18.3MB

Download
memory/2296-332-0x0000000077251000-0x0000000077371000-memory.dmp

Filesize
1.1MB

Download
memory/2296-347-0x00000000378D0000-0x00000000378DA000-memory.dmp

Filesize
40KB

Download
memory/2296-311-0x00000000016C0000-0x0000000003777000-memory.dmp

Filesize
32.7MB

Download
memory/2296-313-0x00000000016C0000-0x0000000003777000-memory.dmp

Filesize
32.7MB

Download
memory/2296-314-0x00000000772D8000-0x00000000772D9000-memory.dmp

Filesize
4KB

Download
memory/2296-315-0x00000000772F5000-0x00000000772F6000-memory.dmp

Filesize
4KB

Download
memory/2296-321-0x00000000016C0000-0x0000000003777000-memory.dmp

Filesize
32.7MB

Download
memory/2296-346-0x00000000377E0000-0x0000000037872000-memory.dmp

Filesize
584KB

Download
memory/2296-344-0x0000000037270000-0x000000003779C000-memory.dmp

Filesize
5.2MB

Download
memory/2296-333-0x0000000000460000-0x00000000016B4000-memory.dmp

Filesize
18.3MB

Download
memory/2296-335-0x0000000000460000-0x00000000004AA000-memory.dmp

Filesize
296KB

Download
memory/2296-334-0x00000000016C0000-0x0000000003777000-memory.dmp

Filesize
32.7MB

Download
memory/2296-336-0x0000000036590000-0x0000000036B34000-memory.dmp

Filesize
5.6MB

Download
memory/2296-337-0x0000000036B80000-0x0000000036C1C000-memory.dmp

Filesize
624KB

Download
memory/2296-342-0x00000000370A0000-0x0000000037262000-memory.dmp

Filesize
1.8MB

Download
memory/2296-343-0x0000000033F70000-0x0000000033FC0000-memory.dmp

Filesize
320KB

Download
memory/3556-310-0x0000000077251000-0x0000000077371000-memory.dmp

Filesize
1.1MB

Download
memory/3556-309-0x00000000028A0000-0x0000000004957000-memory.dmp

Filesize
32.7MB

Download
memory/3556-312-0x00000000028A0000-0x0000000004957000-memory.dmp

Filesize
32.7MB

Download

Analysis

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