MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1cd3cee13fd4653e084327ebf599147a9bcddf5213b332ae928f63f551d3b3f0. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash: 1cd3cee13fd4653e084327ebf599147a9bcddf5213b332ae928f63f551d3b3f0
SHA3-384 hash: 6bc1a43651566c2b91df7339e4464bcdd1c79160abc690e12dc6c44fac33bca71409750bec8baf461189f5060fc543a9
SHA1 hash: 177f308ab0971d734a3da253313e363a1b85519c
MD5 hash: 5d550b3a8cfe672b3280d5721e671602
humanhash: friend-maryland-uniform-florida
File name:Overdue Invoices.exe
Download: download sample
Signature GuLoader
File size:296'456 bytes
First seen:2023-02-27 16:24:23 UTC
Last seen:2023-02-27 17:32:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 93dfc16ed07ebeb5b405221f10d12c0e (30 x GuLoader, 4 x RemcosRAT, 1 x AgentTesla)
ssdeep 6144:Xs+K8okht/bZNSQz89/sKuhvc+9bhZs1BmAvbGAdjWNrMbh9pWeie18361:X64jjfY9opB9VZTAvbGmjF19pWeX1
Threatray 23 similar samples on MalwareBazaar
TLSH T1DC5412877FB044A7ED6B4E71245AFF4768637C8910206A0F57947FA378B2B830E2919D
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon dc9c98d991285458 (17 x GuLoader, 6 x Formbook, 6 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-09-25T08:09:15Z
Valid to:2025-09-24T08:09:15Z
Serial number: 460b3d8c3e68743c30eb17a910d0b9e9adbb6aa1
Thumbprint Algorithm:SHA256
Thumbprint: ca019f3065b064ee17689982aaf95b8e4459a186c9f7afe238ed5d69cb99a5e3
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Overdue Invoices.exe
Verdict:
Malicious activity
Analysis date:
2023-02-27 01:34:37 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file in the %temp% subdirectories
Searching for the window
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
overlay packed shell32.dll
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.
Result
Threat name:
FormBook, GuLoader
Detection:
malicious
Classification:
troj.evad.rans.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Found potential ransomware demand text
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Mass process execution to delay analysis
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample has a suspicious name (potential lure to open the executable)
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 11799 Sample: Overdue Invoices.exe Startdate: 27/02/2023 Architecture: WINDOWS Score: 100 54 www.xiongzexing88ro.com 2->54 56 www.wtpovalderama.com 2->56 58 19 other IPs or domains 2->58 76 Snort IDS alert for network traffic 2->76 78 Malicious sample detected (through community Yara rule) 2->78 80 Antivirus detection for URL or domain 2->80 82 8 other signatures 2->82 11 Overdue Invoices.exe 1 29 2->11         started        signatures3 process4 file5 48 C:\Users\user\AppData\...\Hagrider.Hlo, data 11->48 dropped 50 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 11->50 dropped 52 C:\Users\user\AppData\Local\...\System.dll, PE32 11->52 dropped 96 Tries to detect Any.run 11->96 98 Sample uses process hollowing technique 11->98 15 Overdue Invoices.exe 11->15         started        19 powershell.exe 11->19         started        21 powershell.exe 11->21         started        23 71 other processes 11->23 signatures6 process7 dnsIp8 66 velvetplayground.com.au 162.241.125.56, 443, 49800 UNIFIEDLAYER-AS-1US United States 15->66 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Tries to detect Any.run 15->70 72 Maps a DLL or memory area into another process 15->72 74 2 other signatures 15->74 25 explorer.exe 15->25 injected 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 23->33         started        35 conhost.exe 23->35         started        37 conhost.exe 23->37         started        39 68 other processes 23->39 signatures9 process10 dnsIp11 60 www.binancelotterytoken.xyz 185.27.134.139, 49875, 49876, 49877 WILDCARD-ASWildcardUKLimitedGB United Kingdom 25->60 62 www.ripper.boo 216.40.34.41, 49820, 49822, 49823 TUCOWSCA Canada 25->62 64 12 other IPs or domains 25->64 92 System process connects to network (likely due to code injection or exploit) 25->92 41 cmstp.exe 25->41         started        94 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 29->94 signatures12 process13 signatures14 84 Tries to steal Mail credentials (via file / registry access) 41->84 86 Tries to harvest and steal browser information (history, passwords, etc) 41->86 88 Writes to foreign memory regions 41->88 90 3 other signatures 41->90 44 firefox.exe 41->44         started        process15 process16 46 WerFault.exe 44->46         started       
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2023-02-26 23:26:05 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
18 of 25 (72.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
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 QEMU agent file
Loads dropped DLL
Unpacked files
SH256 hash:
ec156cb0f64588f8c34a7d45c57b250779143cf3816081829810a017f0cf966f
MD5 hash:
b3017435b63a99f6a3037cfe0c7c8b1e
SHA1 hash:
41a582b60f099b65f95ac64e1a5cdce0356a6b6f
SH256 hash:
9352c8971d0046a5526da1889f841eab8ef695e4786b6656f06af289cf32de44
MD5 hash:
402792a47412801287bc610a15cd6076
SHA1 hash:
f2990ac9e903bec596266bf1a1c340ec90ed4ee6
SH256 hash:
1cd3cee13fd4653e084327ebf599147a9bcddf5213b332ae928f63f551d3b3f0
MD5 hash:
5d550b3a8cfe672b3280d5721e671602
SHA1 hash:
177f308ab0971d734a3da253313e363a1b85519c
Please note that we are no longer able to provide a coverage score for Virus Total.

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:PE_Digital_Certificate
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits

File information


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

Comments