MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f22fda1b8750f74b9888362da59a7207f21b3c2321a77ec470f30ada4bbfe62. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f22fda1b8750f74b9888362da59a7207f21b3c2321a77ec470f30ada4bbfe62
SHA3-384 hash: 3bcb6ec315b7fc14696233a7055d7141c4d9ddc1655fb80078ff0d43407f0271e95d3c9d75d99bbdfd42bf8ce9df6cfc
SHA1 hash: bf505df2b425f0e4d5866841c188910e2326efec
MD5 hash: 82c1cb97956338f551579c792163568c
humanhash: may-steak-nineteen-green
File name:4f22fda1b8750f74b9888362da59a7207f21b3c2321a77ec470f30ada4bbfe62
Download: download sample
Signature GuLoader
Create hunting rule
File size:637'806 bytes
First seen:2023-11-03 12:12:38 UTC
Last seen:2023-11-03 14:16:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fd61eafe142870d6d0380163804a642 (39 x GuLoader, 6 x RemcosRAT, 4 x AgentTesla)
ssdeep 6144:o48T4kdmSlLDllqQDBwyV+PYPBmF52NoJy88WG3uVAPa/MdY7Bu+dA29jur/WRlf:obMLSlllqQDKXINF82+K2MABxRh7B5
TLSH T14DD401417A50C992C9294530E0B784A6073ADE34A9C51BDAEF4BF76E3C32598B90F77C
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 2460e8e498c87809 (2 x GuLoader, 1 x RemcosRAT)
Reporter adrian__luca
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
320
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/458018/
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.13103.2487.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Creating a process from a recently created file
Launching a process
Sending a custom TCP request
Gathering data
Verdict:
Likely Malicious
Threat level:
  5/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6544e3df6c436b84c8fb751d/reports/a6c268b4-6d42-4cfe-a294-2ce80990bf77/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4f22fda1b8750f74b9888362da59a7207f21b3c2321a77ec470f30ada4bbfe62
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/a8b69235-190e-4985-9100-c0cbfd0bdbec
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1336632
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: 1336632 Sample: d83CR44HKh.exe Startdate: 03/11/2023 Architecture: WINDOWS Score: 100 34 googlehosted.l.googleusercontent.com 2->34 36 drive.google.com 2->36 38 doc-0g-90-docs.googleusercontent.com 2->38 48 Antivirus detection for URL or domain 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected GuLoader 2->52 54 2 other signatures 2->54 10 d83CR44HKh.exe 4 21 2->10         started        14 svchost.exe 1 1 2->14         started        17 SkypeApp.exe 13 50 2->17         started        signatures3 process4 dnsIp5 32 C:\Users\user\AppData\...behaviorgraphesjfterne.Her, ASCII 10->32 dropped 68 Suspicious powershell command line found 10->68 19 powershell.exe 12 10->19         started        46 127.0.0.1 unknown unknown 14->46 file6 signatures7 process8 signatures9 56 Suspicious powershell command line found 19->56 58 Obfuscated command line found 19->58 60 Very long command line found 19->60 62 Found suspicious powershell code related to unpacking or dynamic code loading 19->62 22 powershell.exe 14 19->22         started        25 conhost.exe 19->25         started        process10 signatures11 64 Writes to foreign memory regions 22->64 66 Maps a DLL or memory area into another process 22->66 27 wab.exe 6 7 22->27         started        process12 dnsIp13 40 194.180.49.35, 4935 LVLT-10753US Germany 27->40 42 drive.google.com 142.250.31.100, 443, 49709 GOOGLEUS United States 27->42 44 googlehosted.l.googleusercontent.com 172.253.122.132, 443, 49710 GOOGLEUS United States 27->44 30 conhost.exe 27->30         started        process14
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4f22fda1b8750f74b9888362da59a7207f21b3c2321a77ec470f30ada4bbfe62
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f22fda1b8750f74b9888362da59a7207f21b3c2321a77ec470f30ada4bbfe62/
Threat name:
Win32.Trojan.Makoob
Create hunting rule
Status:
Malicious
First seen:
2023-10-16 03:14:50 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j4rp3inyouhxjomiqnrnuwnheb7sdm6cginhp3chb4yk3jf37zra._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost downloader persistence rat
Link:
https://tria.ge/reports/231103-pdq5jaab2y/
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:
194.180.49.35:4935
Unpacked files
SH256 hash:
4f22fda1b8750f74b9888362da59a7207f21b3c2321a77ec470f30ada4bbfe62
MD5 hash:
82c1cb97956338f551579c792163568c
SHA1 hash:
bf505df2b425f0e4d5866841c188910e2326efec
Link:
https://www.unpac.me/results/2eb4edf2-6fa4-40c7-9790-b388e2457de6/
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/4f22fda1b8750f74b9888362da59a7207f21b3c2321a77ec470f30ada4bbfe62

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/458018/

Comments