MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a5ec656b7ac0c3c49b84b396af79a7d899ba525251084b7dfbdea4f95d04388. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a5ec656b7ac0c3c49b84b396af79a7d899ba525251084b7dfbdea4f95d04388
SHA3-384 hash: 321a2bbd38208b6a7efbc6d5dadfe3790319e29ad0591767b0220c13474c9f9ba70f4f90b9c466b3c00d013156070cbd
SHA1 hash: 38ee150c7ec3df087b8e1739b4f4f03b6f463c1c
MD5 hash: a6324197d22187d6a4fc02e6d3bb8b07
humanhash: three-wolfram-mountain-floor
File name:Receipt.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:300'296 bytes
First seen:2023-05-03 10:44:57 UTC
Last seen:2023-05-03 11:41:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 93dfc16ed07ebeb5b405221f10d12c0e (30 x GuLoader, 4 x RemcosRAT, 1 x AgentTesla)
ssdeep 6144:Ts+K8okht/be1vxHJ8QvOpd05jEq61S13O0YKh3ttE/v85+aCgybzO:T64jkx2QWpa5jvySs0YAtu/v8+m
Threatray 28 similar samples on MalwareBazaar
TLSH T1025412926F6140D3FC935EB014BEAB578A36FDE540545A4F27A07E07B9B03412E3B2AD
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 dc9c98d991285458 (17 x GuLoader, 6 x Formbook, 6 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-04-07T10:43:47Z
Valid to:2025-04-06T10:43:47Z
Serial number: 4f8c307cbb64a7a012292f282d7de00e92f4d4b7
Thumbprint Algorithm:SHA256
Thumbprint: 9060923fc2d22ffcfb10af7f87f90663400a08e6d1f206d0879b76794ee8b8d2
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
251
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Receipt.exe
Verdict:
Malicious activity
Analysis date:
2023-05-03 10:47:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a432f825-54e2-45e6-80a5-cf7fba3df024

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/386233/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.65710226.15225.9750.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file in the %temp% subdirectories
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/82292/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64523b36961a21dc785c9682/reports/7375dbdb-69c7-4fb0-91d9-73f4987da3a8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3a5ec656b7ac0c3c49b84b396af79a7d899ba525251084b7dfbdea4f95d04388
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/d3d5a2a0-bfe7-494d-8e62-60bd5130ee44
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1225250
Signature
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
Mass process execution to delay analysis
Multi AV Scanner detection for submitted file
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 858213 Sample: Receipt.exe Startdate: 03/05/2023 Architecture: WINDOWS Score: 88 38 www.velvetplayground.com.au 2->38 40 velvetplayground.com.au 2->40 44 Antivirus / Scanner detection for submitted sample 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 Yara detected GuLoader 2->48 50 2 other signatures 2->50 8 Receipt.exe 1 30 2->8         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\System.dll, PE32 8->36 dropped 52 Mass process execution to delay analysis 8->52 54 Tries to detect Any.run 8->54 12 Receipt.exe 8->12         started        16 powershell.exe 8->16         started        18 powershell.exe 8->18         started        20 71 other processes 8->20 signatures6 process7 dnsIp8 42 velvetplayground.com.au 162.241.149.193, 443, 49804, 49805 UNIFIEDLAYER-AS-1US United States 12->42 56 Tries to detect Any.run 12->56 22 conhost.exe 16->22         started        24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        28 conhost.exe 20->28         started        30 conhost.exe 20->30         started        32 68 other processes 20->32 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3a5ec656b7ac0c3c49b84b396af79a7d899ba525251084b7dfbdea4f95d04388/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-02-28 01:20:48 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hjpmmvvxvqgdysnyjm4wv542pwezxjjfeuiijn67xxve7foqioea._file
Verdict:
malicious
Similar samples:
1390ffaba8428295de1c41cb39358e5de9ab79868b1f79a6697fd9e72e23e6ee
GuLoader
1cd3cee13fd4653e084327ebf599147a9bcddf5213b332ae928f63f551d3b3f0
GuLoader
7eb60e087050a8429a68dcf26beb489315dab14ac3b09e00611d349c38055545
GuLoader
80ba5d77bf23701d83f91b9158e5b3ba36e01c83f2b2469aada56e81a428a224
GuLoader
92b742ab79fb91de45b3b90edbcf64515f21cb10f1585e868d92ebf3c4060f13
GuLoader
b65f37c2f7def47bd57ae2837b9c422113da608c3b37a80f62e0332fb717546f
GuLoader
b98d60109c9ccfaac33c719992c026b59e3bc54bbe9fe24bc0fecaa016a02959
GuLoader
f65e518f76a18d65bdc59a8e942cb1ff660568440f3abe7b312be1de4b8330c8
GuLoader
f6abe7db0c36a39bf0c72dd5361c5d16b6e99496f9317e017c521a15a82e17d6
GuLoader
+ 18 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230503-mtd4ssgb9v/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Checks QEMU agent file
Loads dropped DLL
Unpacked files
SH256 hash:
ec156cb0f64588f8c34a7d45c57b250779143cf3816081829810a017f0cf966f
MD5 hash:
b3017435b63a99f6a3037cfe0c7c8b1e
SHA1 hash:
41a582b60f099b65f95ac64e1a5cdce0356a6b6f
Link:
https://www.unpac.me/results/8acc07c1-017a-4e6c-932c-0974e5666cdb/
SH256 hash:
9352c8971d0046a5526da1889f841eab8ef695e4786b6656f06af289cf32de44
MD5 hash:
402792a47412801287bc610a15cd6076
SHA1 hash:
f2990ac9e903bec596266bf1a1c340ec90ed4ee6
Link:
https://www.unpac.me/results/8acc07c1-017a-4e6c-932c-0974e5666cdb/
SH256 hash:
3a5ec656b7ac0c3c49b84b396af79a7d899ba525251084b7dfbdea4f95d04388
MD5 hash:
a6324197d22187d6a4fc02e6d3bb8b07
SHA1 hash:
38ee150c7ec3df087b8e1739b4f4f03b6f463c1c
Link:
https://www.unpac.me/results/8acc07c1-017a-4e6c-932c-0974e5666cdb/
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/3a5ec656b7ac0c3c49b84b396af79a7d899ba525251084b7dfbdea4f95d04388

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/386233/

Comments