MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca26fd8d4675cfec9eee79a402ce93024e4b817655df0307ba3d9dba93f918b2. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca26fd8d4675cfec9eee79a402ce93024e4b817655df0307ba3d9dba93f918b2
SHA3-384 hash: 4eaa7ac331569f0cf65661e450b2790a04ab3d9ce03700f0c457ca5239204860db0b1225ea8f1353654c8738b8dd7ee8
SHA1 hash: a4d8b6552d82bf400bd2c5177263d37d044b079a
MD5 hash: ced4af5a976fb361bfded06260f5985f
humanhash: mirror-virginia-london-hydrogen
File name:ced4af5a976fb361bfded06260f5985f
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'239'576 bytes
First seen:2023-10-11 19:43:50 UTC
Last seen:2023-10-11 21:40:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e9c0657252137ac61c1eeeba4c021000 (53 x GuLoader, 26 x RedLineStealer, 17 x AgentTesla)
ssdeep 24576:jQ3IGH0kofhzE+S/MG5woa+2LvDtn0fEcz2raO/bwntZKozPOPCnsoO+LY:jQ3I7JzE+I5pCDJ0++O/bw7K8uCnsaU
TLSH T119452351A7C0C82DFB4241BED5772AF219B0DC96CD658B5BC7003FA07EB32566E06AD2
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)
Reporter zbetcheckin
Tags:32 exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-06-02T23:53:35Z
Valid to:2026-06-01T23:53:35Z
Serial number: 7ceac052073a62645c326981a84d8e54b2131cef
Thumbprint Algorithm:SHA256
Thumbprint: dcf211c69b0427f53b00dbd54461730aa3418d6270fceadffc5df3a72ea0f31f
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
309
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Part number 91875-11400 x 6.xls
Verdict:
Malicious activity
Analysis date:
2023-10-11 19:42:33 UTC
Tags:
opendir exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/87f695d7-8d9e-425a-bbc4-cf91d629a4c9

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/453501/
Detection(s):
SecuriteInfo.com.FileRepMalware.13314.2106.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Searching for the window
Creating a file
Delayed reading of the file
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6526fb02c51de9263e58590c/reports/acb60a10-5fac-4f37-a59f-cdd3a0f9a13d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/ca26fd8d4675cfec9eee79a402ce93024e4b817655df0307ba3d9dba93f918b2
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/0b78f82e-6539-462e-b0dd-473deeb097c1
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1324095
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1324095 Sample: MaMsKRmgXZ.exe Startdate: 11/10/2023 Architecture: WINDOWS Score: 100 31 www.xlrj.asia 2->31 33 www.start399.com 2->33 35 21 other IPs or domains 2->35 45 Snort IDS alert for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 6 other signatures 2->51 11 MaMsKRmgXZ.exe 2 33 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\System.dll, PE32 11->29 dropped 14 MaMsKRmgXZ.exe 6 11->14         started        process6 dnsIp7 43 103.72.68.128, 50012, 80 FARIYA-PKFariyaNetworksPvtLtdPK India 14->43 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 Queues an APC in another process (thread injection) 14->65 18 explorer.exe 3 1 14->18 injected signatures8 process9 dnsIp10 37 www.holzleisten24.shop 130.185.109.77, 50019, 80 XIRRADE Germany 18->37 39 www.senior-living-91799.bond 104.247.82.94, 50027, 80 TEAMINTERNET-CA-ASCA Canada 18->39 41 13 other IPs or domains 18->41 53 System process connects to network (likely due to code injection or exploit) 18->53 22 cscript.exe 12 18->22         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca26fd8d4675cfec9eee79a402ce93024e4b817655df0307ba3d9dba93f918b2/
Threat name:
Win32.Trojan.InjectorX
Create hunting rule
Status:
Malicious
First seen:
2023-10-11 19:26:30 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
6 of 38 (15.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zitp3dkgoxh6zhxopgsaftutajhexalwkxpqgb52hwo3ve7zdcza._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:guloader campaign:ro12 downloader rat spyware stealer trojan
Link:
https://tria.ge/reports/231011-yfswkshd31/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook payload
Formbook
Guloader,Cloudeye
Unpacked files
SH256 hash:
ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
MD5 hash:
0063d48afe5a0cdc02833145667b6641
SHA1 hash:
e7eb614805d183ecb1127c62decb1a6be1b4f7a8
Link:
https://www.unpac.me/results/ccaadef3-bf81-4178-8f18-1c2c16c516b8/
Parent samples :
5312214b15330113f6eab71565e1e3c7d1ee3b59daa6703c271aaf3b192e6809
02fca6ef5d9d8b1eb29f7ac8ea0573b504ea7f06c215e091791653b40fe1329a
cc53accc69b32c2507210ea70d1d56aa84dbe354a7f79577df180179ea797427
045a7318a9e2e550208c0c7e9fc805068df19fa73823ac3acaa049a46c4045ee
f2a883a0e4b01c72b0f063df3be5a0102e5c8fbaedc39c8d35c632b200599283
dffefbde27442b9095388b1871ffdc101c430b9a814138be4f962328a5b73fde
e0fb60da371912c158861c9660632d58e45cfcff12351cc9e03f497f319eb5de
904f69a4bed3844273cce1676e8920794815af4c1527e560bbc1bc44b5b8457a
SH256 hash:
ca26fd8d4675cfec9eee79a402ce93024e4b817655df0307ba3d9dba93f918b2
MD5 hash:
ced4af5a976fb361bfded06260f5985f
SHA1 hash:
a4d8b6552d82bf400bd2c5177263d37d044b079a
Link:
https://www.unpac.me/results/ccaadef3-bf81-4178-8f18-1c2c16c516b8/
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/ca26fd8d4675cfec9eee79a402ce93024e4b817655df0307ba3d9dba93f918b2

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
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.

Web download

GuLoader

Executable exe ca26fd8d4675cfec9eee79a402ce93024e4b817655df0307ba3d9dba93f918b2

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2719319/
Cape
Cape
https://www.capesandbox.com/analysis/453501/

Comments


Avatar
zbet commented on 2023-10-11 19:43:51 UTC

url : hxxp://103.72.68.128/M0910T/smss.exe