MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 46903e776f2014fcd877ba071d2707c749ddae140e7682f5cc00c894914f3303. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 46903e776f2014fcd877ba071d2707c749ddae140e7682f5cc00c894914f3303
SHA3-384 hash: c881bb9b181705e5d99f5a3c2ad4fe0a79585e056eeddd70fe1271076bacfc68a7ed1239698dcd3600544f4fe5b890a0
SHA1 hash: 3ff48d4a298db79468ab8716a9814f2fe703e031
MD5 hash: 08422117b96b96d5164ef061bf874307
humanhash: east-uranus-carolina-low
File name:JUSTIFICANTE DE PAGO30032023pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:785'185 bytes
First seen:2023-04-03 06:02:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4ea4df5d94204fc550be1874e1b77ea7 (241 x GuLoader, 29 x RemcosRAT, 17 x VIPKeylogger)
ssdeep 12288:/ghti/pIS61qK7fXHUoTQDsqRaKbygMG9IFqnWAQsZufEIx5tx715v1:4O2A0fXHUSkdRPy1GRWAQRMIxTR13
Threatray 309 similar samples on MalwareBazaar
TLSH T151F412653F94CC27E79016B4A1A4E7BD87B4E9642D69D30399E53DEF7530B228C28322
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 f8dcd4d6eeeee8c0 (3 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
240
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
JUSTIFICANTE DE PAGO30032023pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-04-03 06:10:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/393f14f5-f34d-460a-b786-a04c1e8592fa

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/379515/
Detection(s):
SecuriteInfo.com.Malware.Heuristic.1003.23418.15608.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Delayed reading of the file
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/76220/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/642a6c17c56b2da73aca7bd4/reports/b70796ed-b8b4-4dbb-a8c9-4673425a531d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/46903e776f2014fcd877ba071d2707c749ddae140e7682f5cc00c894914f3303
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/7dd1e1bf-e793-463b-8ba7-a7439701f7f6
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1206864
Signature
Found potential ransomware demand text
Machine Learning detection for sample
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 harvest and steal browser information (history, passwords, etc)
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 839779 Sample: JUSTIFICANTE_DE_PAGO3003202... Startdate: 03/04/2023 Architecture: WINDOWS Score: 100 26 googlehosted.l.googleusercontent.com 2->26 28 drive.google.com 2->28 30 doc-0g-1c-docs.googleusercontent.com 2->30 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected GuLoader 2->40 42 Yara detected AgentTesla 2->42 44 2 other signatures 2->44 8 JUSTIFICANTE_DE_PAGO30032023pdf.exe 3 46 2->8         started        signatures3 process4 file5 18 C:\...\ArmouryCrate.UserSessionHelper.exe, PE32+ 8->18 dropped 20 C:\Users\user\...\msvcr110.dll, PE32 8->20 dropped 22 C:\Users\user\...\QCA.HDP.CustomControls.dll, PE32+ 8->22 dropped 24 2 other files (none is malicious) 8->24 dropped 46 Writes to foreign memory regions 8->46 48 Tries to detect Any.run 8->48 12 CasPol.exe 11 8->12         started        signatures6 process7 dnsIp8 32 googlehosted.l.googleusercontent.com 142.250.181.225, 443, 49829 GOOGLEUS United States 12->32 34 drive.google.com 142.250.186.46, 443, 49828 GOOGLEUS United States 12->34 36 192.168.11.1 unknown unknown 12->36 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->50 52 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->52 54 Tries to steal Mail credentials (via file / registry access) 12->54 56 3 other signatures 12->56 16 conhost.exe 12->16         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/46903e776f2014fcd877ba071d2707c749ddae140e7682f5cc00c894914f3303/
Threat name:
Win32.Trojan.InjectorX
Create hunting rule
Status:
Malicious
First seen:
2023-04-03 00:56:52 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i2id453peakpzwdxxidr2jyhy5e53lqubz3if5omadejjekpgmbq._file
Verdict:
unknown
Similar samples:
1fb0321a0639fae8da0f3417e55cc775e330540865a13419fb8d16e88c88b842
GuLoader
26809236fa3db2204c9a400efb77b5351b002daeb6db92267265ea4d05fb4801
GuLoader
4710edc648f88ffd10f8b91116426c5ea2de81b6dfffc7866469d22f55d58a14
GuLoader
5bd289f1d731e66ee8bf9fed839a7921d4dfa968400db74fca274d9fadf447f5
GuLoader
691b3c73fa3301b9c36de80df0e7aa9d551a87ccc77a04b93786d6f1f5a41969
GuLoader
947277659622c8bdfa55d88dd158c99cf7474f9fd47af8e27eedf33f0bdfc62f
GuLoader
ab2036dc90a503a003ed28e17ed2cf24001848be05580b6246656f88abe01c86
GuLoader
bb374bed2c79ac878b6626a1537f6f7869ab6176fba4e0f5cb16f11a255a285b
GuLoader
daa7879d15681dbf9834e1a0b814b359a2faeb55ca567a263298c3ab4085f310
GuLoader
+ 299 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:guloader collection downloader keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230403-gr1xwsdb34/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Loads dropped DLL
AgentTesla
Guloader,Cloudeye
Unpacked files
SH256 hash:
bfa9591f6395954a2c615dfc8f19a26cd652a9f6e0b36b0b4fb47f7d4db61b8e
MD5 hash:
0415ba7a146c6184fd90253596de1312
SHA1 hash:
c48f5217eb22323fa15a12ec596b88663d31b93e
Link:
https://www.unpac.me/results/15422f03-ff22-4d27-8c1d-65c5b68c7ed2/
SH256 hash:
999ebf5ef6bf51828193deaf7697e6d22419e437c65e603bffa0bb2acc7f40c8
MD5 hash:
505c7c214c17ac801f5930abc57d38c3
SHA1 hash:
e9a17ed8182f92bf86babbd7ba8dd8770e8ff47e
Link:
https://www.unpac.me/results/15422f03-ff22-4d27-8c1d-65c5b68c7ed2/
SH256 hash:
2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
MD5 hash:
a4dd044bcd94e9b3370ccf095b31f896
SHA1 hash:
17c78201323ab2095bc53184aa8267c9187d5173
Link:
https://www.unpac.me/results/15422f03-ff22-4d27-8c1d-65c5b68c7ed2/
SH256 hash:
46903e776f2014fcd877ba071d2707c749ddae140e7682f5cc00c894914f3303
MD5 hash:
08422117b96b96d5164ef061bf874307
SHA1 hash:
3ff48d4a298db79468ab8716a9814f2fe703e031
Link:
https://www.unpac.me/results/15422f03-ff22-4d27-8c1d-65c5b68c7ed2/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/46903e776f20/report/overview.html
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:Suspicious_Macro_Presence
Create hunting rule
Author:Mehmet Ali Kerimoglu (CYB3RMX)
Description:This rule detects common malicious/suspicious implementations.

File information

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

Malspam

GuLoader

Executable exe 46903e776f2014fcd877ba071d2707c749ddae140e7682f5cc00c894914f3303

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/379515/

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