MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 00efaea983bd75aa20453d6a0807f5f41d8b117ec6fa7e28d8ca58dbd54a441c. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 00efaea983bd75aa20453d6a0807f5f41d8b117ec6fa7e28d8ca58dbd54a441c
SHA3-384 hash: a82b5314da3732cde69b591c4824b2f266f351e3073813a117abde633e28de4f1ad583a2287fc8ffab0258c90d9ea272
SHA1 hash: 1e6001a1aa53c381e371f61476472b52eb93de13
MD5 hash: 41448a906b89398fbe1ca21718e8feec
humanhash: arkansas-eighteen-moon-green
File name:00efaea983bd75aa20453d6a0807f5f41d8b117ec6fa7e28d8ca58dbd54a441c
Download: download sample
Signature GuLoader
Create hunting rule
File size:883'216 bytes
First seen:2023-11-03 11:30:49 UTC
Last seen:2023-11-03 13:21:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f4639a0b3116c2cfc71144b88a929cfd (109 x GuLoader, 53 x Formbook, 40 x VIPKeylogger)
ssdeep 24576:AfLFpRIiQCdmCNQPtgNnkRoIL0GTnRQNJlGtQ:6OZ32Q1gN0oIYGTeJlGtQ
Threatray 2'788 similar samples on MalwareBazaar
TLSH T10B1501A3794490F9FB7486313866E461DB6E6F3AC9A9044E119BFE1B74F12335ACB40C
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 32f0dc9e96cc7031 (3 x GuLoader)
Reporter adrian__luca
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
3
# of downloads :
311
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/458007/
Detection(s):
SecuriteInfo.com.Trojan.Generic.34242481.24731.7780.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Searching for the window
Creating a process from a recently created file
Sending an HTTP GET request
Launching a process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6544da06af1dc4c055558367/reports/3d3b9a3b-5c44-4e2b-82b2-ea9d52ace015/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/00efaea983bd75aa20453d6a0807f5f41d8b117ec6fa7e28d8ca58dbd54a441c
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:
Malicious
Link:
https://analyze.intezer.com/analyses/e3114a4f-f7d2-483a-9359-cf4e66e09565
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1336609
Signature
Antivirus detection for URL or domain
Found suspicious powershell code related to unpacking or dynamic code loading
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sigma detected: Remcos
Suspicious powershell command line found
Very long command line found
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1336609 Sample: I2nzRiZnRy.exe Startdate: 03/11/2023 Architecture: WINDOWS Score: 100 29 googlehosted.l.googleusercontent.com 2->29 31 drive.google.com 2->31 33 doc-04-90-docs.googleusercontent.com 2->33 45 Antivirus detection for URL or domain 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected GuLoader 2->49 51 2 other signatures 2->51 10 I2nzRiZnRy.exe 27 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\Local\...\Lardiform.aus, ASCII 10->27 dropped 53 Suspicious powershell command line found 10->53 14 powershell.exe 12 10->14         started        signatures6 process7 signatures8 55 Suspicious powershell command line found 14->55 57 Obfuscated command line found 14->57 59 Very long command line found 14->59 61 Found suspicious powershell code related to unpacking or dynamic code loading 14->61 17 powershell.exe 15 14->17         started        20 conhost.exe 14->20         started        process9 signatures10 41 Writes to foreign memory regions 17->41 43 Maps a DLL or memory area into another process 17->43 22 wab.exe 6 7 17->22         started        process11 dnsIp12 35 185.225.74.166, 1606 MAYAKBG Germany 22->35 37 googlehosted.l.googleusercontent.com 142.251.16.132, 443, 49719 GOOGLEUS United States 22->37 39 drive.google.com 172.253.122.101, 443, 49718 GOOGLEUS United States 22->39 25 conhost.exe 22->25         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/00efaea983bd75aa20453d6a0807f5f41d8b117ec6fa7e28d8ca58dbd54a441c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/00efaea983bd75aa20453d6a0807f5f41d8b117ec6fa7e28d8ca58dbd54a441c/
Threat name:
Win32.Trojan.Makoob
Create hunting rule
Status:
Malicious
First seen:
2023-10-11 00:43:45 UTC
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=adx25kmdxv22uicfhvvaqb7v6qoywel6y35h4kgyzjmnxvkkiqoa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
cloudeye
Create hunting rule
Similar samples:
045b514767dbbe5c411284ea83b2d47b62b1f7a258f866871bfebc14667ef5e6
GuLoader
0d88f2b2b699bec2ecb080ade2b4ac4706f39ff90c547d28f09ca3e38e009862
GuLoader
1aee775c13151f0853c02dbd804ad25f1ea6b3c5db6312760d67af89e689845a
GuLoader
7f793f734102e69d7ac16e898a6a65f3d7eae3581c82a7fc8f853299ed18d590
GuLoader
9707c1faa4b7191af96f2879472c6bb368eef29b80d917dc9dc197f92ae86b8f
GuLoader
b33f1430088ad3c77a02a36d407b8928b2dfe9ffb03a6c62e43845e086926eb9
GuLoader
b94bcb3ea1cef8b1759856c06c57264332223216fda926fdb58bc848e5a5494d
GuLoader
d4c96c493952ab9601201dc7875a664148107c06a5481ae53414037fc1edccda
GuLoader
e479c0b49b6fe13242fc767e1db58067b61e4c16ff7068d3b39c4d8c2836428f
GuLoader
ec604e744a669546187f8460fa7f28a4deccefb8ec1bdd2115d593351b609d93
GuLoader
+ 2'778 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:admin downloader persistence rat
Link:
https://tria.ge/reports/231103-nmpsdsbf57/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
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
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
185.225.74.166:1606
Unpacked files
SH256 hash:
00efaea983bd75aa20453d6a0807f5f41d8b117ec6fa7e28d8ca58dbd54a441c
MD5 hash:
41448a906b89398fbe1ca21718e8feec
SHA1 hash:
1e6001a1aa53c381e371f61476472b52eb93de13
Link:
https://www.unpac.me/results/a41d2090-269e-4690-9a5d-a25258cef628/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/00efaea983bd/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/00efaea983bd75aa20453d6a0807f5f41d8b117ec6fa7e28d8ca58dbd54a441c

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
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_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/458007/

Comments