guloader | c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86

General

Target

c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
Size

737KB
MD5

df8c4ee84f3897880922002188c2ffd8
SHA1

80e151b2aae8383523eabeaafe54dc6b19986eb6
SHA256

c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86
SHA512

3960d5372e36dd6c6bb72ea79c8ac5f6964da1a2b5119e68efdf9780d84b408ba8283c3908c8f75b89278f466f991ff5b29b941289575e07a341b56b545b8dd0
SSDEEP

12288:yF9S8t23Nm7o/1D220Hy38SeD83S1a37vsQoejUxnE8UML789zUO9vVOI0emBmGu:mS8t3y1DZ3lRsa37kpegxnlGUOdb0emo

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7809339088:AAEUtMa_u0dd_zBfAWh2Ah2az4h6hNs_Wg0/sendMessage?chat_id=7618581100

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
75	4876	Process not Found

Loads dropped DLL 2 IoCs

pid	Process
2684	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
2684	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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-1-5-21-3932017190-1449707826-1445630-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
Key opened	\REGISTRY\USER\S-1-5-21-3932017190-1449707826-1445630-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
Key opened	\REGISTRY\USER\S-1-5-21-3932017190-1449707826-1445630-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

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

Web Service

T1102

flow	ioc
35	drive.google.com
36	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
73	reallyfreegeoip.org
64	checkip.dyndns.org
72	reallyfreegeoip.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
5008	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2684	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
5008	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
File opened for modification	C:\Program Files (x86)\Common Files\rhesusbarnet\teenfully.bra	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
File opened for modification	C:\Program Files (x86)\Common Files\infarkt.pla	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
File opened for modification	C:\Program Files (x86)\Unelaborated.non	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\rothesay\Fallenternes.con	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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
2792	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5008	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
5008	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2684	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 5008	2684	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	95
PID 2684 wrote to memory of 5008	2684	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	95
PID 2684 wrote to memory of 5008	2684	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	95
PID 2684 wrote to memory of 5008	2684	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3932017190-1449707826-1445630-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3932017190-1449707826-1445630-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe

C:\Users\Admin\AppData\Local\Temp\c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
"C:\Users\Admin\AppData\Local\Temp\c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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:2684
- C:\Users\Admin\AppData\Local\Temp\c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.exe
  "C:\Users\Admin\AppData\Local\Temp\c3be34851a80788ae23d5ff8659c36711bbfac902dd745bf0f6e30c240578a86.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:5008

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI3IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY0MzMiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODc1OTU2NTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjM2MjY3NDkzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2792

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\nsgBBCF.tmp\System.dll

Filesize
11KB

MD5
cf85183b87314359488b850f9e97a698

SHA1
6b6c790037eec7ebea4d05590359cb4473f19aea

SHA256
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac

SHA512
fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

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

Filesize
924B

MD5
6273ca695687622845d7e11d01587862

SHA1
05965fe6a8498db1cec24426c6b19ea0d2f020b2

SHA256
bbc379e10b0641e15addb12cd3c40acce35cbb8c0e9d375677584c17e77d2c57

SHA512
65304433e4b00e7edd39349b97a8b6b1af71b4c2579d191c3e8bebb6a8b901721d30022c5d33ea02ca3dc6d3ae727c5748e9daeca54aa80afc7604e47048109f

Download Submit
memory/2684-309-0x0000000077BA1000-0x0000000077CC1000-memory.dmp

Filesize
1.1MB

Download
memory/2684-310-0x0000000077BA1000-0x0000000077CC1000-memory.dmp

Filesize
1.1MB

Download
memory/2684-311-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/5008-328-0x0000000077BA1000-0x0000000077CC1000-memory.dmp

Filesize
1.1MB

Download
memory/5008-331-0x000000003A050000-0x000000003A5F4000-memory.dmp

Filesize
5.6MB

Download
memory/5008-314-0x0000000077C45000-0x0000000077C46000-memory.dmp

Filesize
4KB

Download
memory/5008-312-0x00000000016C0000-0x00000000070B7000-memory.dmp

Filesize
90.0MB

Download
memory/5008-327-0x0000000000460000-0x00000000016B4000-memory.dmp

Filesize
18.3MB

Download
memory/5008-329-0x00000000016C0000-0x00000000070B7000-memory.dmp

Filesize
90.0MB

Download
memory/5008-330-0x0000000000460000-0x00000000004A8000-memory.dmp

Filesize
288KB

Download
memory/5008-313-0x0000000077C28000-0x0000000077C29000-memory.dmp

Filesize
4KB

Download
memory/5008-332-0x0000000039EA0000-0x0000000039F3C000-memory.dmp

Filesize
624KB

Download
memory/5008-336-0x000000003AA40000-0x000000003AC02000-memory.dmp

Filesize
1.8MB

Download
memory/5008-337-0x000000003AC10000-0x000000003AC60000-memory.dmp

Filesize
320KB

Download
memory/5008-338-0x000000003ACE0000-0x000000003B20C000-memory.dmp

Filesize
5.2MB

Download
memory/5008-341-0x0000000037740000-0x00000000377D2000-memory.dmp

Filesize
584KB

Download
memory/5008-342-0x0000000037800000-0x000000003780A000-memory.dmp

Filesize
40KB

Download

Analysis

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