MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04e37487ffb37eae4b2c7afc8d932dd002549c4d6e276a51327de2606dbad9f5. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 04e37487ffb37eae4b2c7afc8d932dd002549c4d6e276a51327de2606dbad9f5
SHA3-384 hash: 724a5984bc80c766364058bf6e7c6119b443b33a104554496144f0f165db03b406727952e3f9e9a48a7828657a177ead
SHA1 hash: dd20b1225c45b6917e9d321eeb8c58def5c6476a
MD5 hash: 437cf3e5277a57cb6223bfa1b8366330
humanhash: mexico-alanine-william-early
File name:04e37487ffb37eae4b2c7afc8d932dd002549c4d6e276a51327de2606dbad9f5
Download: download sample
Signature GuLoader
Create hunting rule
File size:700'032 bytes
First seen:2023-03-08 12:07:11 UTC
Last seen:2023-03-08 13:32:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7c2c71dfce9a27650634dc8b1ca03bf0 (160 x Loki, 58 x Formbook, 55 x Adware.Generic)
ssdeep 12288:UFfNPXhuc7Lgc8jR4W7qL4ILCStrKa5neId1EDxc+YO:WfkyGDiXLTrbneqS6+
Threatray 360 similar samples on MalwareBazaar
TLSH T10DE4229139E1C56FE687D17C0CF58A91F7FC9E600A224503BB2437DDFA3CA4289AD652
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 7260c8c8e868f1e9 (2 x AveMariaRAT, 1 x GuLoader)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-03-18T09:42:24Z
Valid to:2025-03-17T09:42:24Z
Serial number: 3ab4cc019c3219c6d4b2703ea6742ab8477be93c
Thumbprint Algorithm:SHA256
Thumbprint: 34c7fd4db2af1ca111caf96ba49310924c293298a80c684037ca5a64d1228c03
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
218
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
04e37487ffb37eae4b2c7afc8d932dd002549c4d6e276a51327de2606dbad9f5
Verdict:
Malicious activity
Analysis date:
2023-03-08 12:10:20 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/bff6925b-c4d3-49f6-a4b1-5a30c06412d7

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/372551/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.65659520.27362.30263.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Delayed reading of the file
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64087aa48b48bcea611f0e97/reports/e810c4dd-eb4e-4889-9d99-2e5b0837ffbc/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/04e37487ffb37eae4b2c7afc8d932dd002549c4d6e276a51327de2606dbad9f5
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/dc91261d-4879-47e0-b96b-6fed17e87c02
Result
Threat name:
AveMaria, GuLoader, UACMe
Create hunting rule
Detection:
malicious
Classification:
troj.evad.phis.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1189390
Signature
Adds a directory exclusion to Windows Defender
Contains functionality to hide user accounts
Creates files in alternative data streams (ADS)
Drops PE files to the document folder of the user
Drops script or batch files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
Increases the number of concurrent connection per server for Internet Explorer
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Tries to detect Any.run
Yara detected AveMaria stealer
Yara detected GuLoader
Yara detected UACMe UAC Bypass tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 12193 Sample: vkYhbicYto.exe Startdate: 08/03/2023 Architecture: WINDOWS Score: 100 73 googlehosted.l.googleusercontent.com 2->73 75 drive.google.com 2->75 77 doc-0g-4o-docs.googleusercontent.com 2->77 87 Malicious sample detected (through community Yara rule) 2->87 89 Multi AV Scanner detection for dropped file 2->89 91 Multi AV Scanner detection for submitted file 2->91 93 5 other signatures 2->93 12 vkYhbicYto.exe 1 49 2->12         started        16 Windows8.exe 30 2->16         started        signatures3 process4 file5 63 C:\Users\user\AppData\Roaming\...\sqlite3.dll, PE32 12->63 dropped 65 C:\Users\...behaviorgraphPUPowerSavingConfigEditor.dll, PE32+ 12->65 dropped 67 C:\Users\user\AppData\Local\...\System.dll, PE32 12->67 dropped 105 Drops PE files to the document folder of the user 12->105 107 Drops script or batch files to the startup folder 12->107 109 Adds a directory exclusion to Windows Defender 12->109 18 vkYhbicYto.exe 5 14 12->18         started        69 C:\Users\user\AppData\Local\...\System.dll, PE32 16->69 dropped 111 Tries to detect Any.run 16->111 23 Windows8.exe 2 8 16->23         started        signatures6 process7 dnsIp8 79 drive.google.com 142.250.181.238, 443, 49829 GOOGLEUS United States 18->79 81 googlehosted.l.googleusercontent.com 172.217.18.97, 443, 49830, 49842 GOOGLEUS United States 18->81 53 C:\Users\user\Documents\Windows8.exe, PE32 18->53 dropped 55 C:\Users\user\...\Documents:ApplicationData, PE32 18->55 dropped 57 C:\Users\...\Windows8.exe:Zone.Identifier, ASCII 18->57 dropped 59 2 other malicious files 18->59 dropped 95 Creates files in alternative data streams (ADS) 18->95 97 Adds a directory exclusion to Windows Defender 18->97 99 Tries to detect Any.run 18->99 101 2 other signatures 18->101 25 Windows8.exe 30 18->25         started        29 powershell.exe 23 18->29         started        83 142.250.186.174, 443, 49841 GOOGLEUS United States 23->83 31 cmd.exe 23->31         started        file9 signatures10 process11 file12 61 C:\Users\user\AppData\Local\...\System.dll, PE32 25->61 dropped 103 Multi AV Scanner detection for dropped file 25->103 33 WerFault.exe 21 16 25->33         started        35 conhost.exe 29->35         started        37 sdclt.exe 31->37         started        39 conhost.exe 31->39         started        41 sdclt.exe 31->41         started        43 sdclt.exe 31->43         started        signatures13 process14 process15 45 control.exe 37->45         started        process16 47 Windows8.exe 45->47         started        file17 71 C:\Users\user\AppData\Local\...\System.dll, PE32 47->71 dropped 85 Tries to detect Any.run 47->85 51 Windows8.exe 47->51         started        signatures18 process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/04e37487ffb37eae4b2c7afc8d932dd002549c4d6e276a51327de2606dbad9f5/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-02-24 07:26:49 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
17 of 39 (43.59%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=atrxjb77wn7k4szmpl6i3ezn2abfjhcnnytwuujspxrga3n23h2q._file
Verdict:
malicious
Label(s):
avemaria
Create hunting rule
cloudeye
Create hunting rule
Similar samples:
4f93f4cec712117b9e8bd20f079e8086b6358f0d0b2738a8a448dbdf9fc3db3c
GuLoader
5e777ea6208a9e3819ce079fca5d8ad1d8f818b20de8cda1f6c2fa867e17aac9
GuLoader
635aff002f09930542b741c8e5ae7e6ed57b4cacf793dabb96a2df3397a8a945
GuLoader
723ff97e6559f6558c288ca693898592a21aab28c003883ca13b81667d7e3aef
GuLoader
be0fa67ce465f9ae26a1ed20ddb104f2731cd3b717b2df0f469937b2d88b57cb
GuLoader
d6e26fa2f4dcfe5a112c21fb851f626aa7ee8e9f6cac73bd27f927b054f7182d
GuLoader
f13b318caba7938d24d18b32e16a1f111ec694b313590a4023f5e277d70ef7db
GuLoader
f83914dd2ce0c31fda44574ae93ecdd188e9e974d0a45b619b03db7e3d279208
GuLoader
+ 350 additional samples on MalwareBazaar
Result
Malware family:
warzonerat
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:warzonerat downloader infostealer persistence rat
Link:
https://tria.ge/reports/230308-pawwlsgb99/
Behaviour
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Drops startup file
Executes dropped EXE
Loads dropped DLL
Warzone RAT payload
Guloader,Cloudeye
WarzoneRat, AveMaria
Malware Config
C2 Extraction:
forcema002.duckdns.org:8234
Unpacked files
SH256 hash:
ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
MD5 hash:
0063d48afe5a0cdc02833145667b6641
SHA1 hash:
e7eb614805d183ecb1127c62decb1a6be1b4f7a8
Link:
https://www.unpac.me/results/47949bfb-874e-4b13-a8ad-e4e7870287e4/
Parent samples :
5312214b15330113f6eab71565e1e3c7d1ee3b59daa6703c271aaf3b192e6809
02fca6ef5d9d8b1eb29f7ac8ea0573b504ea7f06c215e091791653b40fe1329a
cc53accc69b32c2507210ea70d1d56aa84dbe354a7f79577df180179ea797427
045a7318a9e2e550208c0c7e9fc805068df19fa73823ac3acaa049a46c4045ee
f2a883a0e4b01c72b0f063df3be5a0102e5c8fbaedc39c8d35c632b200599283
dffefbde27442b9095388b1871ffdc101c430b9a814138be4f962328a5b73fde
e0fb60da371912c158861c9660632d58e45cfcff12351cc9e03f497f319eb5de
904f69a4bed3844273cce1676e8920794815af4c1527e560bbc1bc44b5b8457a
SH256 hash:
cf11409c81b426b1e900c0af603fa1835dc5a646fe6d8f7fb582e80af1122bf2
MD5 hash:
901228029213372f1301f06a8a3b41d2
SHA1 hash:
8e9b038e98323a9af5c57b4966187942ce258ba1
Link:
https://www.unpac.me/results/47949bfb-874e-4b13-a8ad-e4e7870287e4/
SH256 hash:
04e37487ffb37eae4b2c7afc8d932dd002549c4d6e276a51327de2606dbad9f5
MD5 hash:
437cf3e5277a57cb6223bfa1b8366330
SHA1 hash:
dd20b1225c45b6917e9d321eeb8c58def5c6476a
Link:
https://www.unpac.me/results/47949bfb-874e-4b13-a8ad-e4e7870287e4/
Malware family:
Warzone
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/04e37487ffb3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/04e37487ffb37eae4b2c7afc8d932dd002549c4d6e276a51327de2606dbad9f5

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
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

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/372551/

Comments