MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5dfdaae08c84ddffeb831b0f8e410e09bc71799307e64ae91635332f1d979924. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5dfdaae08c84ddffeb831b0f8e410e09bc71799307e64ae91635332f1d979924
SHA3-384 hash: 8d118d468a91704e33dcad4fd817aef0c718a8822b34166bb48b81027e6166d69bba327e0ba8378193a06145983a0b21
SHA1 hash: c6e3b0fd06d38d00633f93f75f80d9a69527dd5c
MD5 hash: 36c718c490a3d92593662fd3b40f2a4c
humanhash: saturn-purple-ink-arizona
File name:me.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:517'096 bytes
First seen:2022-11-14 13:41:38 UTC
Last seen:2022-11-14 15:38:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (728 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:YbE/HUKXAWlzNHJMX8JBxVG63Jb+P+OeaX1zddyWx7RdzH8uj60hGqmbmD44T73Y:YbEpK8dtZaXAWv1ZkbxU7312
Threatray 4'778 similar samples on MalwareBazaar
TLSH T1B8B4BDA17365CCE2DCA618F39D82E32415A1EF3978E4DE1326ED3A1DD8723C3589914B
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)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-05-15T20:26:30Z
Valid to:2025-05-14T20:26:30Z
Serial number: -33d8d5d36ebc0e3c
Thumbprint Algorithm:SHA256
Thumbprint: 0914ff95d3f83837f6f3554b97f8e3c4bf8ca11a926b0b803f1ca444321980c9
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
193
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
me.exe
Verdict:
Suspicious activity
Analysis date:
2022-11-14 13:42:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/76677a01-b4d1-4af6-9abe-76ecd5e24b4c

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/333777/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.13811.487.5256.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/52337/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/637245ab42e3c45b840c0651/reports/fa6c300e-a59d-4ded-be6f-e120fe4f06bb/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/95bfce9f-61ea-4cd1-afdc-4fb7f414ab53
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1112911
Signature
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
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: 745605 Sample: me.exe Startdate: 14/11/2022 Architecture: WINDOWS Score: 100 22 mail.jnarora.com 2->22 24 googlehosted.l.googleusercontent.com 2->24 26 2 other IPs or domains 2->26 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected GuLoader 2->36 38 Yara detected AgentTesla 2->38 40 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->40 8 me.exe 5 48 2->8         started        signatures3 process4 file5 20 C:\Users\user\AppData\Local\...\System.dll, PE32 8->20 dropped 42 Writes to foreign memory regions 8->42 44 Tries to detect Any.run 8->44 12 CasPol.exe 11 8->12         started        16 CasPol.exe 8->16         started        signatures6 process7 dnsIp8 28 mail.jnarora.com 103.72.76.109, 49800, 587 TOMATOWEB-BDTomatoWebPvtLimitedBD Bangladesh 12->28 30 googlehosted.l.googleusercontent.com 142.250.181.225, 443, 49799 GOOGLEUS United States 12->30 32 drive.google.com 172.217.16.206, 443, 49798 GOOGLEUS United States 12->32 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->46 48 Tries to steal Mail credentials (via file / registry access) 12->48 50 Tries to harvest and steal ftp login credentials 12->50 56 2 other signatures 12->56 18 conhost.exe 12->18         started        52 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->52 54 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->54 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5dfdaae08c84ddffeb831b0f8e410e09bc71799307e64ae91635332f1d979924/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2022-11-10 05:53:14 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lx62vyemqto7724ddmhy4qiobg6hc6mta7tev2iwguzs6hmxtesa._file
Verdict:
unknown
Similar samples:
1235559275e785007232e4aee35bd0609d1e52da4900ac8526ff54b592d63c6b
GuLoader
2434acaaf7aab02db41a3a09896a912379b081f170663123b9f2223b1de47a46
GuLoader
65197e06d709ab4d34cf5b01ee912043bfbf31d919740c59b72ca5ff7740630c
GuLoader
78f8221d10ca5af256eefa0376f55e4688e00005317ab0bfb59f5406f9ed16ae
GuLoader
a80d7a2da8c373a9087cc7bb556bfe243019fa6c78714888ffb17e5ba0499648
GuLoader
c5c0fbca778f53dc085d84ad3f038e4a20bce7add5f07012594194bc3bca522a
GuLoader
dd1ed5209c967dd24b1a861d3eb959a0d52a3ed54a9e0e39685ec5269760f91a
GuLoader
e60da850d4cf946edd8afe4a6f93953565b55b0f3323357e5136b17b8aaf8c5d
GuLoader
fa37842557cf180ef8848ad5956d18c46608e4c396dff7d5d378b0d48a78ca9b
GuLoader
+ 4'768 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/221114-qznrzabh59/
Behaviour
Enumerates physical storage devices
Drops file in Program Files directory
Checks installed software on the system
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5cd764f7-011d-4e79-8372-0bf95cbab93d
Unpacked files
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
Link:
https://www.unpac.me/results/8f5b14db-2934-4bcf-b6bf-73f3419ccc70/
SH256 hash:
5dfdaae08c84ddffeb831b0f8e410e09bc71799307e64ae91635332f1d979924
MD5 hash:
36c718c490a3d92593662fd3b40f2a4c
SHA1 hash:
c6e3b0fd06d38d00633f93f75f80d9a69527dd5c
Link:
https://www.unpac.me/results/8f5b14db-2934-4bcf-b6bf-73f3419ccc70/
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/5dfdaae08c84ddffeb831b0f8e410e09bc71799307e64ae91635332f1d979924

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

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

Malspam

GuLoader

Executable exe 5dfdaae08c84ddffeb831b0f8e410e09bc71799307e64ae91635332f1d979924

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/333777/

Comments