MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a
SHA3-384 hash: e128e9a97286571db9803e1e6c87d89192492ebc44b05a3623738a75fbb5e35e12e0bc1896760b5746ce57706dbbdd07
SHA1 hash: 1e8f803e2f7b51af246fe11861c09751bbe8cb07
MD5 hash: bf464a9ed6c19342db8d8b9f70946ad2
humanhash: black-video-avocado-nevada
File name:HSBC Customer Information.com
Download: download sample
Signature GuLoader
Create hunting rule
File size:200'920 bytes
First seen:2022-09-08 12:38:38 UTC
Last seen:2022-09-09 10:03:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b78ecf47c0a3e24a6f4af114e2d1f5de (300 x GuLoader, 23 x Formbook, 21 x RemcosRAT)
ssdeep 3072:hw4gnScG4DI2dc0bKFfTb4qJN5S1THK0r8n1EIKuADl8x1BoXaoI10cnwATsU0Sz:h923Ol4qhS1uDEZuADlQEXah+kyFNy
TLSH T1B9141223B2D1A5FBDAE34BB2547613EFC3FBD65252201B2763180BB92D844724B3D616
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e0e0f0e4f0f0f8f8 (1 x GuLoader)
Reporter malwarelabnet
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Vialful Rrggens
Issuer:Vialful Rrggens
Algorithm:sha256WithRSAEncryption
Valid from:2022-04-02T00:02:51Z
Valid to:2025-04-01T00:02:51Z
Serial number: -79658bc4597d841f
Thumbprint Algorithm:SHA256
Thumbprint: 488e4498187f2160ecab26fef6eade77f90a451f1d457e2b6720d91a26a8352d
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
3
# of downloads :
405
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
HSBC Customer Information.com
Verdict:
Malicious activity
Analysis date:
2022-09-08 12:39:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d56cdde3-e787-434f-8f7d-242eeab612e9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/308781/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.10602.3440.18220.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Delayed reading of the file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/37077/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6319e273bdec86ddb45ccb04/reports/6c8b9b98-83a4-44f9-83af-b6f08a479101/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8da4f06f-1f0a-4e4c-a94a-28096fe9595e
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1067122
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 699660 Sample: HSBC Customer Information.com.exe Startdate: 08/09/2022 Architecture: WINDOWS Score: 100 29 www.webcraftuae.com 2->29 31 www.sportmel.com 2->31 33 21 other IPs or domains 2->33 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 8 other signatures 2->49 10 HSBC Customer Information.com.exe 4 501 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\Local\...\System.dll, PE32 10->27 dropped 63 Tries to detect Any.run 10->63 14 HSBC Customer Information.com.exe 6 10->14         started        signatures6 process7 dnsIp8 41 quotechventures.com 134.122.29.25, 443, 49736, 49755 DIGITALOCEAN-ASNUS United States 14->41 65 Modifies the context of a thread in another process (thread injection) 14->65 67 Tries to detect Any.run 14->67 69 Maps a DLL or memory area into another process 14->69 71 2 other signatures 14->71 18 explorer.exe 14->18 injected signatures9 process10 dnsIp11 35 www.holteseivthn.xyz 109.123.121.243, 49804, 49805, 49806 UK2NET-ASGB United Kingdom 18->35 37 daily4you.co.uk 37.97.254.27, 49812, 49813, 49814 TRANSIP-ASAmsterdamtheNetherlandsNL Netherlands 18->37 39 12 other IPs or domains 18->39 51 System process connects to network (likely due to code injection or exploit) 18->51 53 Uses ipconfig to lookup or modify the Windows network settings 18->53 22 ipconfig.exe 15 18->22         started        signatures12 process13 signatures14 55 Tries to steal Mail credentials (via file / registry access) 22->55 57 Tries to harvest and steal browser information (history, passwords, etc) 22->57 59 Writes to foreign memory regions 22->59 61 3 other signatures 22->61 25 firefox.exe 22->25         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2022-09-08 11:44:00 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=55touc6o4gom2pjhogqxb7zbri7ehmt7dmmpetqinbolju76au5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
cloudeye
Create hunting rule
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/220908-pvl7xaefa5/
Behaviour
Gathers network information
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Checks QEMU agent file
Checks computer location settings
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
98bcd1dd88642f4dd36a300c76ebb1ddfbbbc5bfc7e3b6d7435dc6d6e030c13b
MD5 hash:
b8992e497d57001ddf100f9c397fcef5
SHA1 hash:
e26ddf101a2ec5027975d2909306457c6f61cfbd
Link:
https://www.unpac.me/results/2af3f5c6-aae2-4cfc-a188-7f63d0f94055/
SH256 hash:
ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a
MD5 hash:
bf464a9ed6c19342db8d8b9f70946ad2
SHA1 hash:
1e8f803e2f7b51af246fe11861c09751bbe8cb07
Link:
https://www.unpac.me/results/2af3f5c6-aae2-4cfc-a188-7f63d0f94055/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/308781/

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