MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4303d671853cab5c7d2f815942dfae8e727054791fa7947b16536c6b9876412d. 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


OnlyLogger


Vendor detections: 11


Intelligence 11 IOCs YARA 10 File information Comments
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SHA256 hash: 4303d671853cab5c7d2f815942dfae8e727054791fa7947b16536c6b9876412d
SHA3-384 hash: 8063478c056f2f1ea23dd22828d20a99f9c7f5e710784b89667033bbc9f3fbd2c032834656e8db4a54b083830c7750df
SHA1 hash: 6dbcd05a14285c3b26cc824bd56a94a54665e878
MD5 hash: eaa9bbf9f7f1555ae6382bffb68942bb
humanhash: oven-earth-leopard-saturn
File name:file
Download: download sample
Signature OnlyLogger
Create hunting rule
File size:285'184 bytes
First seen:2023-10-04 18:52:31 UTC
Last seen:2023-10-04 19:21:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7bf0c3cbf0d3960e40b75bc830477f17 (6 x Stealc, 5 x Smoke Loader, 3 x Tofsee)
ssdeep 6144:AujcQMTfagf86bH7gNNwtn1nKg3o3GIksB5z0xfHpD:L7MTagf5bqe1KEo2QbQfJD
Threatray 91 similar samples on MalwareBazaar
TLSH T14554E01036F2C832D7B74A3948369B84BE7F78726D75C59F3754166EAE202C18E66343
TrID 38.6% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
29.0% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 0408080d44a00000 (1 x OnlyLogger)
Reporter andretavare5
Tags:exe OnlyLogger


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

Intelligence

File Origin
# of uploads :
2
# of downloads :
482
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
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Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
DNS request
Gathering data
Gathering data
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4303d671853cab5c7d2f815942dfae8e727054791fa7947b16536c6b9876412d
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/199939b0-dd26-42cf-ac6a-12be88fcea25
Result
Threat name:
Stealc, Vidar, onlyLogger
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1319691
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 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 signatures2 2 Behavior Graph ID: 1319691 Sample: file.exe Startdate: 04/10/2023 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 9 other signatures 2->56 9 file.exe 24 2->9         started        process3 dnsIp4 44 aidandylan.top 85.143.221.30, 49804, 49805, 49817 TRADERSOFTRU Russian Federation 9->44 46 5.42.64.10, 49802, 49803, 80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 9->46 48 3 other IPs or domains 9->48 36 C:\Users\user\AppData\...\7196478199.exe, PE32 9->36 dropped 38 C:\Users\user\AppData\...\syncUpd[1].exe, PE32 9->38 dropped 40 C:\Users\user\AppData\...\syncUpd[1].exe, PE32 9->40 dropped 66 Detected unpacking (changes PE section rights) 9->66 68 Detected unpacking (overwrites its own PE header) 9->68 14 cmd.exe 1 9->14         started        16 cmd.exe 1 9->16         started        18 BackgroundTransferHost.exe 13 9->18         started        file5 signatures6 process7 process8 20 7196478199.exe 1 34 14->20         started        24 conhost.exe 14->24         started        26 taskkill.exe 1 16->26         started        28 conhost.exe 16->28         started        dnsIp9 42 aidandylan.top 20->42 58 Detected unpacking (changes PE section rights) 20->58 60 Detected unpacking (overwrites its own PE header) 20->60 62 Tries to steal Mail credentials (via file / registry access) 20->62 64 5 other signatures 20->64 30 cmd.exe 1 20->30         started        signatures10 process11 process12 32 conhost.exe 30->32         started        34 timeout.exe 1 30->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4303d671853cab5c7d2f815942dfae8e727054791fa7947b16536c6b9876412d/
Threat name:
Win32.Trojan.Privateloader
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Status:
Malicious
First seen:
2023-10-04 18:53:06 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=imb5m4mfhsvvy7jpqfmufx5orzzhavdzd6tzi6ywknwgxgdwiewq._file
Verdict:
malicious
Similar samples:
1837622fbafa47eb30d479df4f4c97e41e54c9f65c99859b9b4ef195fa9bcdbc
OnlyLogger
32df544202aec1a088304f43fa4fa862bc824e896f9e3fc9b078b95b33b2ba2c
OnlyLogger
6e75be092dacc4f00da72baf4ea2d7fcc84220ec04f213e0b14eed89004f4ae0
OnlyLogger
b6a67c6b9085376403d3e61df6e24b533112200bcfa7a0222ee6c0fd9722d0e4
OnlyLogger
beca325649a048fb9d8517b206b82f94a0663138725660ee957b75e8d5ebe494
OnlyLogger
c093df19539455619b30408268030ba22b4fbba44e6872115f58642e626b494d
OnlyLogger
d37b53f23353eede338e7d30afadc73cd4ca9e1f010367925e70502c4c27bd95
OnlyLogger
dbee3dbe90cbe6fefd612f476a0f8e34f0f74bdd4785db3adc424efaff3f3ac4
OnlyLogger
f74b703389c8e3cab555593c5c6ce5af160e53d5a3d047c8835c100f6b8c8d89
OnlyLogger
+ 81 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/231004-xjmnaseb7t/
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/1c7a68d8-b256-49cd-850a-068e11de435e/
Parent samples :
87c9f6da1bde1c4762477b55c8fbd4f821464f23669c08eef59df00adc438a37
12cd64a6d63eb4c7ae10c011a65ea69f9ce0022197d39cb454cc63fc7e147f78
658d9ea4093e492a0f1a8cc6e054e65d2ea30f22fd179b1e1ca58c17618690e9
a4f2367e3e2e9a8ce919fde4522d4a347e30fa7625ff391b082a5c830acb1a76
030c0eab77f63f34b1d09730a8d01a6e5c128c564f75e8f24dddf1a9c1917507
53d10bf98c4e290949b6efe10418a674c737c837ad85fcd47baeeaaa8d72ddcf
92f8faa5180fb698b2313532039b120227e32255dfacf2b3139a4b3734a1fe0c
SH256 hash:
4303d671853cab5c7d2f815942dfae8e727054791fa7947b16536c6b9876412d
MD5 hash:
eaa9bbf9f7f1555ae6382bffb68942bb
SHA1 hash:
6dbcd05a14285c3b26cc824bd56a94a54665e878
Link:
https://www.unpac.me/results/1c7a68d8-b256-49cd-850a-068e11de435e/
Malware family:
Stealc
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4303d671853c/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/4303d671853cab5c7d2f815942dfae8e727054791fa7947b16536c6b9876412d

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
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MALWARE_Win_OnlyLogger
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Author:ditekSHen
Description:Detects OnlyLogger loader variants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:win_gcleaner_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.gcleaner.
Rule name:yara_template
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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

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