MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 46328084c6b1d250b46ce080d6426e86753df25bcbd6332b253eb578fa789a5e. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash: 46328084c6b1d250b46ce080d6426e86753df25bcbd6332b253eb578fa789a5e
SHA3-384 hash: 0945d8ef88173c406dcd1d4d24121074410acd7b8efae91744ff89e1f2b8eb22f212295cc1ffb6d4aacfc831254f9e1b
SHA1 hash: 7f85473f77fdb34cb0605810b6c311644464e469
MD5 hash: f11a4998203a586620d614fdfc4a4254
humanhash: maryland-shade-two-mockingbird
File name:SecuriteInfo.com.Gen.Variant.Nemesis.9031.25241.28245
Download: download sample
Signature GuLoader
File size:205'841 bytes
First seen:2022-07-12 12:13:20 UTC
Last seen:2022-07-12 12:49:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (199 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 6144:p1ssjUr6SEUDuddSKlJaYIewTWCtYxIxl3:csiENdd1lJaxewyCtYx4l
Threatray 3'370 similar samples on MalwareBazaar
TLSH T1C214F181A690946AD46B8770343F474ADFE39C4114785ACF1BAC7DAA3F73285A61D333
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)
File icon (PE):PE icon
dhash icon e09a676060678ee0 (14 x AsyncRAT, 5 x ValleyRAT, 4 x Formbook)
Reporter SecuriteInfoCom
Tags:exe GuLoader

Intelligence


File Origin
# of uploads :
2
# of downloads :
358
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Gen.Variant.Nemesis.9031.25241.28245
Verdict:
Malicious activity
Analysis date:
2022-07-12 21:05:05 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
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.
Result
Threat name:
AgentTesla, GuLoader
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Drops PE files to the document folder of the user
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 661922 Sample: SecuriteInfo.com.Gen.Varian... Startdate: 12/07/2022 Architecture: WINDOWS Score: 100 22 mail.obrascsm.com 2->22 24 googlehosted.l.googleusercontent.com 2->24 26 2 other IPs or domains 2->26 34 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected GuLoader 2->38 40 3 other signatures 2->40 8 SecuriteInfo.com.Gen.Variant.Nemesis.9031.25241.exe 8 36 2->8         started        signatures3 process4 file5 18 C:\Users\user\Documents\...\lang-1063.dll, PE32 8->18 dropped 20 C:\Users\user\AppData\Local\...\System.dll, PE32 8->20 dropped 42 Drops PE files to the document folder of the user 8->42 44 Writes to foreign memory regions 8->44 46 Tries to detect Any.run 8->46 12 CasPol.exe 11 8->12         started        signatures6 process7 dnsIp8 28 mail.obrascsm.com 91.134.184.195, 49755, 587 OVHFR France 12->28 30 googlehosted.l.googleusercontent.com 142.251.36.129, 443, 49751 GOOGLEUS United States 12->30 32 drive.google.com 172.217.16.206, 443, 49750 GOOGLEUS United States 12->32 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->50 52 Tries to steal Mail credentials (via file / registry access) 12->52 54 4 other signatures 12->54 16 conhost.exe 12->16         started        signatures9 process10
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2022-07-12 11:58:17 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Behaviour
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Checks installed software on the system
Loads dropped DLL
Unpacked files
SH256 hash:
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 hash:
792b6f86e296d3904285b2bf67ccd7e0
SHA1 hash:
966b16f84697552747e0ddd19a4ba8ab5083af31
SH256 hash:
46328084c6b1d250b46ce080d6426e86753df25bcbd6332b253eb578fa789a5e
MD5 hash:
f11a4998203a586620d614fdfc4a4254
SHA1 hash:
7f85473f77fdb34cb0605810b6c311644464e469
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader

File information


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

Comments