MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aac13b3f25b043fcc1baaa1481ab241a4845ff0d978fe86a455deaf28cedd352. 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: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aac13b3f25b043fcc1baaa1481ab241a4845ff0d978fe86a455deaf28cedd352
SHA3-384 hash: 9ab23e8dd499070e2494189972d6e0ee8d1d4606da5cfc5c7f2999c8e760101b0d0d96fc3b3fee720068a1a4f2ac38ac
SHA1 hash: 2331eaecdd1da03fc229c8639cddc03ccc34e18f
MD5 hash: f51029776cf59c102ed0e1c757484e8b
humanhash: finch-speaker-ink-timing
File name:EUR_Cert_3883774784847_CMR8494849.pdf.scr.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:473'318 bytes
First seen:2022-05-23 12:33:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 12288:73nKn0c4uKYOroZWTjvUycs8t6YQt89VgZP:73ni0c4f7roYTjvUycs8Q
Threatray 1'861 similar samples on MalwareBazaar
TLSH T1C8A4E12357184979C87E4F73B02AF6A244726F772930A30F7786B53B28B11524A2FDB5
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 f0e8c8c88e8eb29a (5 x GuLoader)
Reporter James_inthe_box
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
232
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
EUR_Cert_3883774784847_CMR8494849.pdf.scr.exe
Verdict:
Malicious activity
Analysis date:
2022-05-24 01:33:17 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8f40aeee-0101-4a3c-9838-31d11c617907

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/273670/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% directory
Creating a file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/19660/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe guloader nanocore overlay packed shell32.dll wacatac
Link:
https://www.filescan.io/uploads/628b7f77370bb1455cc0929a/reports/749dbc62-ac82-472d-b392-fc81bb235419/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.
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/efaf8cd7-4a8d-4b77-821a-7071730d88b0
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1000101
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect Any.run
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aac13b3f25b043fcc1baaa1481ab241a4845ff0d978fe86a455deaf28cedd352/
Threat name:
Win32.Downloader.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2022-05-23 01:54:38 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
20 of 26 (76.92%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vlatwpzfwbb7zqn2vikidkzedjeel7yns6h6q2sflxvpfdhn2nja._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
1298d5b931dadd03d47b41c51556fb5707a6af6df9b4b483686fdbf155d083fd
GuLoader
19e5b14651f7ad050e2b9dc95e5bb7574a8fdde378bfbc7101ee7e2276c23d62
GuLoader
2e93c7a4fbfb9407abd40c065b13cd3a4438483f008a06f2c692fc41b2d6dfee
GuLoader
3944b429bf931ab06a980d4d15dfd69b5ea442c68938e0aee354e6c25311f94f
GuLoader
5810b0d44b3328dead0b3bc7fc6c3178193a1bd88c5b21ecaea224f56cc7aef3
GuLoader
75f352e00f106877b2e7197ab6b6be0234aba379dec517009a7e26bfef612921
GuLoader
8db83c5c1507e0307df594c1f068faef19e6e3377dd8d6ed3c9610b70bf93356
GuLoader
+ 1'851 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/220523-prryzsddd3/
Behaviour
Enumerates physical storage devices
Checks installed software on the system
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
6a90bebbb03585d60ed8df07772533fe94bbc3e06d6d9d24f66ca7aa180404cc
MD5 hash:
cb53de3a8f568991cf490976313ad20d
SHA1 hash:
ed7d7dd29f5d3349812a59252627dc4966d65284
Link:
https://www.unpac.me/results/849b2c69-9a0b-425e-ada3-839c1ae149b5/
SH256 hash:
aac13b3f25b043fcc1baaa1481ab241a4845ff0d978fe86a455deaf28cedd352
MD5 hash:
f51029776cf59c102ed0e1c757484e8b
SHA1 hash:
2331eaecdd1da03fc229c8639cddc03ccc34e18f
Link:
https://www.unpac.me/results/849b2c69-9a0b-425e-ada3-839c1ae149b5/
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/aac13b3f25b043fcc1baaa1481ab241a4845ff0d978fe86a455deaf28cedd352

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/273670/

Comments