MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a631321bcd5918689455e3c2d2f17538192a27e056b2f2255a68578fceed8492. 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


GCleaner


Vendor detections: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a631321bcd5918689455e3c2d2f17538192a27e056b2f2255a68578fceed8492
SHA3-384 hash: 2f78dcaf4c16d8afd8c24809f86e1059d76d6d17ce13760b78dcbd42cbe04f54f75ba9177ecce00b64b82f840c2fae44
SHA1 hash: 9a7f80f07b13f6dec174a3d72021c3092189bdae
MD5 hash: bfea6c8ee484a64751f97efa1ff5da85
humanhash: harry-missouri-sink-three
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:262'144 bytes
First seen:2023-10-05 14:09:30 UTC
Last seen:2023-10-05 15:16:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 79de41fd9a8e567c644b0068a3bd1c4e (3 x Smoke Loader, 2 x Tofsee, 2 x GCleaner)
ssdeep 3072:5XfdiwOyYY1qcR/GSOAZ9rnGPIH2ha0C6BzHMnnhURiZ9ihahcpttmMG0/65+R:1fdiwYY1qcR4oTxHExH1ui/ptMMH
Threatray 119 similar samples on MalwareBazaar
TLSH T15444F2313AA0C772C88741348914CEF4B9BEB4626AE9858B3758D6BFAE303C1D776355
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 0008180800080000 (2 x GCleaner)
Reporter andretavare5
Tags:exe gcleaner


Avatar
andretavare5
Sample downloaded from http://5.42.64.10/api/files/software/s2.exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
326
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/651ec3bc426c8727d6ef3459/reports/9019ce22-9245-493f-99e2-954e3b26e2aa/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a631321bcd5918689455e3c2d2f17538192a27e056b2f2255a68578fceed8492
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:
Oski Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3e60a92a-fa5b-4dbc-bbd3-56eb874f5be1
Result
Threat name:
Stealc, Vidar, onlyLogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1320351
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Yara detected onlyLogger
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1320351 Sample: file.exe Startdate: 05/10/2023 Architecture: WINDOWS Score: 100 53 aidandylan.top 2->53 55 script.googleusercontent.com 2->55 57 2 other IPs or domains 2->57 65 Snort IDS alert for network traffic 2->65 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 10 other signatures 2->71 10 file.exe 20 2->10         started        signatures3 process4 dnsIp5 59 aidandylan.top 85.143.221.30, 49685, 49686, 49698 TRADERSOFTRU Russian Federation 10->59 61 5.42.64.10, 49683, 49684, 49689 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 10->61 63 2 other IPs or domains 10->63 47 C:\Users\user\AppData\...\5726857100.exe, PE32 10->47 dropped 49 C:\Users\user\AppData\...\syncUpd[1].exe, PE32 10->49 dropped 51 C:\Users\user\AppData\...\syncUpd[1].exe, PE32 10->51 dropped 81 Detected unpacking (changes PE section rights) 10->81 83 Detected unpacking (overwrites its own PE header) 10->83 15 cmd.exe 1 10->15         started        17 cmd.exe 1 10->17         started        19 WerFault.exe 21 16 10->19         started        file6 signatures7 process8 process9 21 5726857100.exe 54 15->21         started        25 conhost.exe 15->25         started        27 taskkill.exe 1 17->27         started        29 conhost.exe 17->29         started        file10 39 C:\Users\user\AppData\...\softokn3[1].dll, PE32 21->39 dropped 41 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 21->41 dropped 43 C:\Users\user\AppData\...\mozglue[1].dll, PE32 21->43 dropped 45 9 other files (5 malicious) 21->45 dropped 73 Multi AV Scanner detection for dropped file 21->73 75 Detected unpacking (changes PE section rights) 21->75 77 Detected unpacking (overwrites its own PE header) 21->77 79 5 other signatures 21->79 31 cmd.exe 1 21->31         started        33 WerFault.exe 19 16 21->33         started        signatures11 process12 process13 35 conhost.exe 31->35         started        37 timeout.exe 1 31->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a631321bcd5918689455e3c2d2f17538192a27e056b2f2255a68578fceed8492/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-10-05 14:10:06 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uyyteg6nlemgrfcv4pbnf4lvhamsuj7ak2zpejk2nbly7txnqsja._file
Verdict:
malicious
Similar samples:
081312cf1c09e5a743ce3d72e3d656be5be621d810163f829394821c2aedddc6
GCleaner
134a9c039c8bd677ce4cb6cab52ee0a1d52a4fe3ff21600871ee38b9a629789b
GCleaner
55df033fe62f9b849870c10e28db0432cb4287e278cfc80acc3d113a6887513d
GCleaner
6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0
GCleaner
8dd45c3deaa091c3bdde3456ffde09709d17802c57d4d6dbdf6fc5d5d1e3c8fc
GCleaner
a1d841ce7d37bf840f5093620aac706b9c5ad87b986462dc131f2dc577aa59f7
GCleaner
a36f57a8a85068b665998f143867ff57a4cad4e24f66acf48cef697df2e9ec86
GCleaner
b482d79969e96500849a0ba17134ce8df366d7ada84949c23f75b4053f4fdbf3
GCleaner
beca325649a048fb9d8517b206b82f94a0663138725660ee957b75e8d5ebe494
GCleaner
+ 109 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Link:
https://tria.ge/reports/231005-rgn6fsbe9z/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://aidandylan.top
Unpacked files
SH256 hash:
055917c53bcbfd2bbcd4d428cf08d45afdecefc99605328bb2ac6fd2a9df9f7c
MD5 hash:
dd3e2766fed2e5b8619097ef27ae78a3
SHA1 hash:
905af3c4efa701627a90230686eb8c372b44bf19
Link:
https://www.unpac.me/results/b5fbebcc-c9ee-4edd-a948-e674ddef22ad/
Parent samples :
87c9f6da1bde1c4762477b55c8fbd4f821464f23669c08eef59df00adc438a37
12cd64a6d63eb4c7ae10c011a65ea69f9ce0022197d39cb454cc63fc7e147f78
658d9ea4093e492a0f1a8cc6e054e65d2ea30f22fd179b1e1ca58c17618690e9
a4f2367e3e2e9a8ce919fde4522d4a347e30fa7625ff391b082a5c830acb1a76
030c0eab77f63f34b1d09730a8d01a6e5c128c564f75e8f24dddf1a9c1917507
53d10bf98c4e290949b6efe10418a674c737c837ad85fcd47baeeaaa8d72ddcf
92f8faa5180fb698b2313532039b120227e32255dfacf2b3139a4b3734a1fe0c
SH256 hash:
a631321bcd5918689455e3c2d2f17538192a27e056b2f2255a68578fceed8492
MD5 hash:
bfea6c8ee484a64751f97efa1ff5da85
SHA1 hash:
9a7f80f07b13f6dec174a3d72021c3092189bdae
Link:
https://www.unpac.me/results/b5fbebcc-c9ee-4edd-a948-e674ddef22ad/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a631321bcd59/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/a631321bcd5918689455e3c2d2f17538192a27e056b2f2255a68578fceed8492

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
  
URLhaus
https://urlhaus.abuse.ch/url/2716172/

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