MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71
SHA3-384 hash: 2ab13f78f7c31c8949f08c871da6411b889956ebcfd02453861ebcb41052da74b5425c05b304448d216f18d3967da23c
SHA1 hash: 202609a0a76de15ad525350951e243d189ae6e94
MD5 hash: da46e40befc8fe047880faf81d239665
humanhash: october-stairway-yellow-alanine
File name:rActionary.bat
Download: download sample
Signature GuLoader
Create hunting rule
File size:521'869 bytes
First seen:2025-08-20 10:00:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (278 x GuLoader, 44 x RemcosRAT, 40 x VIPKeylogger)
ssdeep 6144:tT4DtIJeHFQEuKFntQgIS6fH8R5wvDs3kdMntZ1V9gc+7iomMe6y9OlWinUwUs6o:tT3MQKZaTcPSdUngBfX+OxUXsd5
Threatray 311 similar samples on MalwareBazaar
TLSH T1BCB40200B378D857D1A340B7587A9ED961A9DF2519469E0FA3503B2CF9B628FDB0F342
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
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) (4504/4/1)
Magika pebin
dhash icon 62f98c96cec6e461 (2 x RemcosRAT, 1 x GuLoader)
Reporter FXOLabs
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
129
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rActionary.bat
Verdict:
Suspicious activity
Analysis date:
2025-08-20 10:02:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c9b161e3-598e-4116-90b6-e0ba769d24a4

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/22438/
Detection(s):
Porcupine.Trojan.Win32.Makoob.gen.419025.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a59ce6c2f5296a1a286398
Tags:
injection obfusc virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %temp% subdirectories
Creating a file
Delayed reading of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer masquerade microsoft_visual_cc overlay overlay
Link:
https://www.filescan.io/uploads/68a59cdba4bdac9f5ba06fe6/reports/769f7f60-1fc0-4163-91d4-57f301eaa294/overview
Verdict:
Malicious
Labled as:
Malware_46.1
Link:
https://www.hybrid-analysis.com/sample/420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/60f31176-3ee9-40db-9dec-c8afcd3e6510
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/da46e40befc8fe047880faf81d239665
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71/
Verdict:
Malicious
Threat:
Family.DARKCLOUD
Link:
https://tip.neiki.dev/file/420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2025-08-20 06:58:30 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iigbjwlqwngk3ecjh6bxpwatblcoi4o2sfpxbsdtuhnxrvuklzyq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
062928672183df1ba24e977e957417803005040e9c7175cc4352c976fb6cdfe2
GuLoader
2af452692d3b63287d9214f6fed23b139df8ede4d495f5cd6fe61de3d21232ed
GuLoader
2c777fd566f8c2554fb11b644cc77b7bc339eda611370f34eb3aa7873a091bd3
GuLoader
42a3f5c285fb4847e00fdf641b8279d04148ab0b2b37d367061df6cdadbcad08
GuLoader
7be61fe6f4a50beaa9f069ab567efbeedabb34a1867a67a14637c87dc49c344c
GuLoader
8967e16faa00c305cfff2da074473b684bf17bb3d00eeb49eb235876076da727
GuLoader
b49d3ce7e196f260883936e3707bd2ebd9380c6a715f197de8fba99eb969555a
GuLoader
c409ce35e37013ff87ce9de162256e94edbd33b947aa21eb084e03e5652ac3b2
GuLoader
cad3fcaf006bb04747d4527d2b8cc833d0c4d835a73e1863577bda1b0813fa44
GuLoader
e917a06afe450e6432b00a8acebee1e4e8bc39f689188e54b93498a2a1204669
GuLoader
error
GuLoader
+ 301 additional samples on MalwareBazaar
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud defense_evasion discovery stealer
Link:
https://tria.ge/reports/250820-l15pnadp2w/
Behaviour
Kills process with taskkill
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
DarkCloud
Darkcloud family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/02169b25-14eb-4a4a-8f86-f972daa45d6d
Unpacked files
SH256 hash:
420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71
MD5 hash:
da46e40befc8fe047880faf81d239665
SHA1 hash:
202609a0a76de15ad525350951e243d189ae6e94
Link:
https://www.unpac.me/results/64a16c1c-7550-4718-8696-dd489434a6cd/
SH256 hash:
8c3989ac4aeb4f3e2b9236d8e714c6f6c02ff6eebfdb0d8d159bab15f85ad3f9
MD5 hash:
da21053cabaab9fdf90c877aeb3e9938
SHA1 hash:
0baeed078b79950f828de00179b530908bcc8251
Link:
https://www.unpac.me/results/64a16c1c-7550-4718-8696-dd489434a6cd/
SH256 hash:
96d1806db4601cf2698d93dfb04c68b790e2afabf6cdefcffa258be44e5e55d4
MD5 hash:
83fadd2662cff48bb764f64512d9fcea
SHA1 hash:
2b3614ea5388f529a9a69120cdf8eb8c8abb7e1e
Link:
https://www.unpac.me/results/64a16c1c-7550-4718-8696-dd489434a6cd/
SH256 hash:
6a37fa43c95954508c4faf5e7a0e0406a32d1bf815932d44a74db864adeb5730
MD5 hash:
cd5bc1ce800b5d9dcd1e6599b809e0b8
SHA1 hash:
302402b8856eab44b6ae4d74894c8a87dcfc3e10
Link:
https://www.unpac.me/results/64a16c1c-7550-4718-8696-dd489434a6cd/
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/420c14d970b3/report/overview.html
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/420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71

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:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

GuLoader

Executable exe 420c14d970b34cad90493f8377d8130ac4e471da915f70c873a1db78d68a5e71

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22438/

Comments