MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4c9b49e9e1731b887292faf6629f483bf784c47d9f98a0730b906502674b7ad. 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 1 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4c9b49e9e1731b887292faf6629f483bf784c47d9f98a0730b906502674b7ad
SHA3-384 hash: 22f2b7a02efe2a544e5f4d6e97e0f6ec9d0618854a79d24fc05c76be757d257e7eecb67ad29b8358981dab5f090282c3
SHA1 hash: 2d8072be85a3f9e23fe4ef3a0d369bbed1fc7c21
MD5 hash: ff2fa58fd675971f3c5f3e9eb0e455f6
humanhash: five-black-idaho-nebraska
File name:ff2fa58fd675971f3c5f3e9eb0e455f6
Download: download sample
Signature GuLoader
Create hunting rule
File size:391'872 bytes
First seen:2022-07-11 14:28:03 UTC
Last seen:2022-07-15 03:43:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (720 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:KNeZ+BFNZRYLTzEAlfY/JbpNKnJd2p9w5mwQoDfUep9SiRk/V3nQ:KN5bCTRRQQd2pyUep9SNt3Q
Threatray 3'551 similar samples on MalwareBazaar
TLSH T12384AE90F250D8DBE8A946F09C37C87029A3FD2DE4B05E1E75967B197A73393212660F
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe GuLoader signed

Code Signing Certificate

Organisation:lexia Skilderhusene
Issuer:lexia Skilderhusene
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-11T07:35:35Z
Valid to:2023-07-11T07:35:35Z
Serial number: 35533d3f5a0dae96
Thumbprint Algorithm:SHA256
Thumbprint: 1b8e3684dfad0ea3cd96082adbe48a2e9f18a963912e8203dc8741a4d7957562
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
5
# of downloads :
310
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
GTP7529TY.doc
Verdict:
Malicious activity
Analysis date:
2022-07-11 14:51:46 UTC
Tags:
ole-embedded trojan loader
Link:
https://app.any.run/tasks/20182225-4e9d-45b4-aaea-0a572045c666

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/286307/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/25108/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/62cc33c9bbcf6baf2793d70b/reports/6fb8a26a-d287-455b-bb06-396e8adbb2be/overview
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/2df3de9d-2bca-46b3-892e-638ac84c9a3e
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1028707
Signature
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 661204 Sample: orFERlFgOm.exe Startdate: 11/07/2022 Architecture: WINDOWS Score: 100 53 www.yeg1.com 2->53 55 www.xn--smbylarm-b0a.online 2->55 57 33 other IPs or domains 2->57 75 Snort IDS alert for network traffic 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for URL or domain 2->79 81 6 other signatures 2->81 11 orFERlFgOm.exe 5 19 2->11         started        signatures3 process4 file5 49 C:\Users\user\AppData\Local\...\System.dll, PE32 11->49 dropped 97 Tries to detect Any.run 11->97 15 orFERlFgOm.exe 1 8 11->15         started        signatures6 process7 dnsIp8 65 212.192.241.211, 49762, 49781, 80 RAPMSB-ASRU Russian Federation 15->65 67 Creates multiple autostart registry keys 15->67 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Tries to detect Any.run 15->71 73 3 other signatures 15->73 19 explorer.exe 1 6 15->19 injected signatures9 process10 dnsIp11 59 www.chasegmail.com 81.17.18.196, 49770, 49791, 49792 PLI-ASCH Switzerland 19->59 61 www.celesteen.com 217.160.0.175, 49787, 49788, 80 ONEANDONE-ASBrauerstrasse48DE Germany 19->61 63 18 other IPs or domains 19->63 47 C:\Users\user\AppData\...\qbc4anbp3foh.exe, PE32 19->47 dropped 83 System process connects to network (likely due to code injection or exploit) 19->83 85 Benign windows process drops PE files 19->85 24 colorcpl.exe 1 12 19->24         started        27 qbc4anbp3foh.exe 18 19->27         started        file12 signatures13 process14 file15 87 Tries to steal Mail credentials (via file / registry access) 24->87 89 Creates autostart registry keys with suspicious names 24->89 91 Creates multiple autostart registry keys 24->91 95 5 other signatures 24->95 30 cmd.exe 2 24->30         started        33 cmd.exe 1 24->33         started        35 cmd.exe 1 24->35         started        37 firefox.exe 24->37         started        51 C:\Users\user\AppData\Local\...\System.dll, PE32 27->51 dropped 93 Tries to detect Any.run 27->93 39 qbc4anbp3foh.exe 7 27->39         started        signatures16 process17 signatures18 99 Tries to harvest and steal browser information (history, passwords, etc) 30->99 41 conhost.exe 30->41         started        43 conhost.exe 33->43         started        45 conhost.exe 35->45         started        101 Tries to detect Any.run 39->101 process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4c9b49e9e1731b887292faf6629f483bf784c47d9f98a0730b906502674b7ad/
Threat name:
Win32.Downloader.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-07-11 08:51:50 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
14 of 26 (53.85%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ute3jhu6c4y3rbzjf6xwmkpuqo7xqtch3h4yubzqxedfajtuw6wq._file
Verdict:
malicious
Similar samples:
0e21cb48d334fa636c6a2d9d40726f4b7f03b80ae79bc611d6ac94ff552398cc
GuLoader
78f8221d10ca5af256eefa0376f55e4688e00005317ab0bfb59f5406f9ed16ae
GuLoader
b48aa9e3805fe0bacfa777df49455687a7b9a138c23cca9784f26a1f29be9edc
GuLoader
bbd7431d0d5272927e67c43cd961df4d855a4dcd080373355f980d61ff110337
GuLoader
bfcd5670bfa7bc6ccbf5d9b13ef3993e852f40b1d77b6854c99d1cee1558e78a
GuLoader
c28bfc6622b79ac2f1b1d57425553dd13c14648be45776e5070f78624b4ae1b8
GuLoader
d84b6f3b066ab525f9a42b819e618196568925ebe76eafb545ce8376f1ea223c
GuLoader
dd1ed5209c967dd24b1a861d3eb959a0d52a3ed54a9e0e39685ec5269760f91a
GuLoader
e60da850d4cf946edd8afe4a6f93953565b55b0f3323357e5136b17b8aaf8c5d
GuLoader
+ 3'541 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/220711-rtj29scdb3/
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
Link:
https://www.unpac.me/results/60469434-3cc9-4177-9b93-82bc9054c237/
SH256 hash:
a4c9b49e9e1731b887292faf6629f483bf784c47d9f98a0730b906502674b7ad
MD5 hash:
ff2fa58fd675971f3c5f3e9eb0e455f6
SHA1 hash:
2d8072be85a3f9e23fe4ef3a0d369bbed1fc7c21
Link:
https://www.unpac.me/results/60469434-3cc9-4177-9b93-82bc9054c237/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a4c9b49e9e1731b887292faf6629f483bf784c47d9f98a0730b906502674b7ad

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

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

Web download

GuLoader

Executable exe a4c9b49e9e1731b887292faf6629f483bf784c47d9f98a0730b906502674b7ad

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2256373/
Cape
Cape
https://www.capesandbox.com/analysis/286307/

Comments


Avatar
zbet commented on 2022-07-11 14:28:08 UTC

url : hxxp://212.192.241.211/bin.exe