MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a6a26126907eba868eb76873864deedc4170c3da63c3bce70d7fe0d9adaeece. 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: 10


Intelligence 10 IOCs YARA File information Comments 1

SHA256 hash: 1a6a26126907eba868eb76873864deedc4170c3da63c3bce70d7fe0d9adaeece
SHA3-384 hash: c76063f3d25b15aeee3ed68119709d908eb8de58a28203cd13c0eef4831321b85677cdbf127a7331e96f84058e942e63
SHA1 hash: edd428cdcfc2d80dff61cc0cbd27f9a84c628a8b
MD5 hash: 82e512e9dbeb98a04a6251067f4723f4
humanhash: jersey-butter-mississippi-don
File name:82e512e9dbeb98a04a6251067f4723f4
Download: download sample
Signature GuLoader
File size:374'568 bytes
First seen:2022-09-10 01:37:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f23f452093b5c1ff091a2f9fb4fa3e9 (274 x GuLoader, 36 x RemcosRAT, 23 x AgentTesla)
ssdeep 6144:7p+gg5PJgKl4jw8pmRvlCHWZIAru5BPx6c/usjYXDO1fbHUjBl:digKl9yID4PccmYYSl0jBl
Threatray 3'163 similar samples on MalwareBazaar
TLSH T1F784BFA17650C1E1D5A45F73F81B89761A366D291630900F2374BF2B3FFE683D92AB06
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 70f0d292ecf2f030 (9 x GuLoader)
Reporter zbetcheckin
Tags:32 exe GuLoader signed

Code Signing Certificate

Organisation:Dyssede Accentless Fiskemelsindustri
Issuer:Dyssede Accentless Fiskemelsindustri
Algorithm:sha256WithRSAEncryption
Valid from:2022-01-20T01:02:42Z
Valid to:2025-01-19T01:02:42Z
Serial number: 5c93becd1c0e8328
Thumbprint Algorithm:SHA256
Thumbprint: 4a99ed8adce56e7dc80c30889da9e6896811fe785d157e335e6922e7e311b4c4
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
430
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
82e512e9dbeb98a04a6251067f4723f4
Verdict:
Malicious activity
Analysis date:
2022-09-10 01:39:16 UTC
Tags:
n/a

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file
Searching for the window
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
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:
Nanocore, GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Malicious sample detected (through community Yara rule)
Mass process execution to delay analysis
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 700601 Sample: Rmuu3fublT.exe Startdate: 10/09/2022 Architecture: WINDOWS Score: 100 93 craigjonson912.bounceme.net 2->93 99 Snort IDS alert for network traffic 2->99 101 Multi AV Scanner detection for domain / URL 2->101 103 Malicious sample detected (through community Yara rule) 2->103 105 6 other signatures 2->105 10 Rmuu3fublT.exe 6 32 2->10         started        14 CasPol.exe 2->14         started        16 dslmon.exe 2->16         started        18 dslmon.exe 2->18         started        signatures3 process4 file5 87 C:\Users\user\AppData\Roaming\...\hgfs.dll, PE32+ 10->87 dropped 89 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 10->89 dropped 91 C:\Users\user\AppData\Local\...\System.dll, PE32 10->91 dropped 113 Writes to foreign memory regions 10->113 115 Mass process execution to delay analysis 10->115 117 Tries to detect Any.run 10->117 20 CasPol.exe 10->20         started        25 CasPol.exe 10->25         started        27 powershell.exe 10->27         started        35 128 other processes 10->35 29 conhost.exe 14->29         started        31 conhost.exe 16->31         started        33 conhost.exe 18->33         started        signatures6 process7 dnsIp8 95 craigjonson912.bounceme.net 107.182.129.71, 2010, 49778, 49781 META-ASUS Reserved 20->95 97 81.161.229.156, 49777, 80 CMCSUS Germany 20->97 81 C:\Users\user\AppData\Roaming\...\run.dat, data 20->81 dropped 83 C:\Users\user\AppData\Local\Temp\tmp4E9.tmp, XML 20->83 dropped 85 C:\Program Files (x86)\...\dslmon.exe, PE32 20->85 dropped 107 Tries to detect Any.run 20->107 109 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->109 37 schtasks.exe 20->37         started        39 schtasks.exe 20->39         started        41 conhost.exe 20->41         started        111 Uses schtasks.exe or at.exe to add and modify task schedules 25->111 43 conhost.exe 27->43         started        45 conhost.exe 35->45         started        47 conhost.exe 35->47         started        49 conhost.exe 35->49         started        51 147 other processes 35->51 file9 signatures10 process11 process12 53 conhost.exe 37->53         started        55 conhost.exe 39->55         started        57 conhost.exe 43->57         started        59 conhost.exe 45->59         started        67 2 other processes 47->67 61 conhost.exe 49->61         started        63 conhost.exe 51->63         started        65 conhost.exe 51->65         started        69 17 other processes 51->69 process13 71 conhost.exe 57->71         started        73 conhost.exe 57->73         started        75 conhost.exe 59->75         started        77 conhost.exe 61->77         started        79 conhost.exe 63->79         started       
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2022-09-08 23:39:23 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
17 of 25 (68.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Checks installed software on the system
Loads dropped DLL
Unpacked files
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
SH256 hash:
8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6
MD5 hash:
3d366250fcf8b755fce575c75f8c79e4
SHA1 hash:
2ebac7df78154738d41aac8e27d7a0e482845c57
SH256 hash:
bb7e367bee3e91651d444db3c2f0997de914650547c66473bb201a2724d49196
MD5 hash:
6ea4aa54a7837e790c0b822dc8c27cd6
SHA1 hash:
1ed173163c496c482b36ef737fb6832e2b82cb6e
SH256 hash:
1a6a26126907eba868eb76873864deedc4170c3da63c3bce70d7fe0d9adaeece
MD5 hash:
82e512e9dbeb98a04a6251067f4723f4
SHA1 hash:
edd428cdcfc2d80dff61cc0cbd27f9a84c628a8b
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

GuLoader

Executable exe 1a6a26126907eba868eb76873864deedc4170c3da63c3bce70d7fe0d9adaeece

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-09-10 01:37:33 UTC

url : hxxp://81.161.229.156/EEF.exe