MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bdce23fe0fa2ff5498bcf09b53315afb9ce0b21f5cedaf2d545be614d0dcaf57. 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


OskiStealer


Vendor detections: 10


Intelligence 10 IOCs 7 YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bdce23fe0fa2ff5498bcf09b53315afb9ce0b21f5cedaf2d545be614d0dcaf57
SHA3-384 hash: 19ef97fd6e361ef15deaa214c5c67ddae86113b54269fb0a254f312de62becb21850173ce3377fc220e4dc86d8a11088
SHA1 hash: a038fee2042acb6d00ee589026a7bc6368e22e68
MD5 hash: b96b90ff9c9813aa7512e2bb38a78766
humanhash: oscar-mirror-twelve-arkansas
File name:NewOrderWJO-001.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:256'966 bytes
First seen:2021-05-24 06:35:57 UTC
Last seen:2021-05-24 07:02:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:8sBtXz0+4ECY9Nb8QUm3ycgqRq0UP7SinMa7zAuWoRsZ:FtXzlPNbUm3ycgOqP/MIzvaZ
Threatray 1'168 similar samples on MalwareBazaar
TLSH DD44127F74E14D27D24B4A3124B7EB52CB7F730857B9450FABB40FAE88670836866209
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://195.133.40.80/6.jpg

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://195.133.40.80/6.jpg https://threatfox.abuse.ch/ioc/58057/
http://195.133.40.80/1.jpg https://threatfox.abuse.ch/ioc/58058/
http://195.133.40.80/2.jpg https://threatfox.abuse.ch/ioc/58059/
http://195.133.40.80/3.jpg https://threatfox.abuse.ch/ioc/58060/
http://195.133.40.80/4.jpg https://threatfox.abuse.ch/ioc/58061/
http://195.133.40.80/5.jpg https://threatfox.abuse.ch/ioc/58062/
http://195.133.40.80/7.jpg https://threatfox.abuse.ch/ioc/58063/

Intelligence

File Origin
# of uploads :
2
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
New_Order_WJO-001.exe
Verdict:
Malicious activity
Analysis date:
2021-05-24 06:13:51 UTC
Tags:
installer trojan stealer vidar loader
Link:
https://app.any.run/tasks/cb4ce971-51f0-4739-b229-a09e05e160de

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/161258/
Detection(s):
PUA.Win.Trojan.Casino-141
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Replacing files
Creating a window
Delayed writing of the file
DNS request
Sending an HTTP GET request
Changing the Zone.Identifier stream
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Running batch commands
Sending a UDP request
Using the Windows Management Instrumentation requests
Searching for the window
Connection attempt
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Deleting a recently created file
Reading critical registry keys
Stealing user critical data
Launching a tool to kill processes
Unauthorized injection to a system process
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.
Result
Threat name:
Oski Snake Keylogger Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/790074
Signature
Antivirus detection for URL or domain
Creates files in alternative data streams (ADS)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Downloads files with wrong headers with respect to MIME Content-Type
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Posts data to a JPG file (protocol mismatch)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected Beds Obfuscator
Yara detected Oski Stealer
Yara detected Snake Keylogger
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 422471 Sample: NewOrderWJO-001.exe Startdate: 24/05/2021 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Antivirus detection for URL or domain 2->57 59 Yara detected Snake Keylogger 2->59 61 9 other signatures 2->61 8 NewOrderWJO-001.exe 21 2->8         started        process3 file4 33 C:\Users\user\AppData\Local\...\System.dll, PE32 8->33 dropped 77 Detected unpacking (changes PE section rights) 8->77 79 Detected unpacking (overwrites its own PE header) 8->79 81 Maps a DLL or memory area into another process 8->81 12 NewOrderWJO-001.exe 200 8->12         started        signatures5 process6 dnsIp7 49 195.133.40.80, 49715, 80 SPD-NETTR Russian Federation 12->49 51 www.almacigoschile.cl 12->51 53 almacigoschile.cl 190.107.177.247, 49719, 80 SOCCOMERCIALWIRENETCHILELTDACL Chile 12->53 35 C:\Users\user\AppData\Local\...\gdhbj[1].exe, PE32 12->35 dropped 37 C:\ProgramData\301450427611.exe, PE32 12->37 dropped 39 C:\...\301450427611.exe:Zone.Identifier, ASCII 12->39 dropped 41 7 other files (none is malicious) 12->41 dropped 83 Creates files in alternative data streams (ADS) 12->83 85 Tries to harvest and steal browser information (history, passwords, etc) 12->85 87 Tries to steal Crypto Currency Wallets 12->87 17 301450427611.exe 21 12->17         started        21 cmd.exe 1 12->21         started        file8 signatures9 process10 file11 31 C:\Users\user\AppData\Local\...\System.dll, PE32 17->31 dropped 63 Machine Learning detection for dropped file 17->63 65 Writes to foreign memory regions 17->65 67 Maps a DLL or memory area into another process 17->67 23 MSBuild.exe 15 2 17->23         started        27 taskkill.exe 1 21->27         started        29 conhost.exe 21->29         started        signatures12 process13 dnsIp14 43 checkip.dyndns.org 23->43 45 checkip.dyndns.com 216.146.43.70, 49726, 49727, 49728 DYNDNSUS United States 23->45 47 freegeoip.app 104.21.19.200, 443, 49730 CLOUDFLARENETUS United States 23->47 69 May check the online IP address of the machine 23->69 71 Tries to steal Mail credentials (via file access) 23->71 73 Tries to harvest and steal ftp login credentials 23->73 75 Tries to harvest and steal browser information (history, passwords, etc) 23->75 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bdce23fe0fa2ff5498bcf09b53315afb9ce0b21f5cedaf2d545be614d0dcaf57/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-05-24 06:36:26 UTC
AV detection:
9 of 47 (19.15%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xxhch7qpul7vjgf46cnvgmk27ooobmq7ltw26lkulptbjug4v5lq._file
Verdict:
malicious
Similar samples:
017c0459b56b7e178721e18438dc793bbf2cd6cfe14481716a62441efcda3f0c
OskiStealer
1ce5b91643307f66c3ea30d45e7e8f5f686a850fc6687539b18bc594a1d4ecba
OskiStealer
604e8bce3d31f5e04fe9622cedeb0696a69b9cb7f262a9bb33009ede20df100a
OskiStealer
6b10d3c8721e6d9159f63ef4373ac02759c686a7a274d098c34829cfc2bdf8ad
OskiStealer
758353a1ee13e2b4e82bd4ebfa6df47a12a3ac2d488d9602bb89700a4dc6b997
OskiStealer
a68ec0c26f99b4f59d0abbd7cc98de6d9136ffe0d822d8056476d356121e5011
OskiStealer
b5b4f2430ee5b5348b55a2d1be3e1bf5f88094e67409bbb88d6e677da91c8482
OskiStealer
db127ccf5ea69c0bc3888efe5ae2a532c5f5590a2f589f049139fcf63f5e8062
OskiStealer
e010c071fca24673c2ffd0bd064300e66e43e8954e53aeae4287e5c1143c2f65
OskiStealer
e0d22b336dbaf83cab6789c39802c8a0c2739b1642c1834265c621493212819b
OskiStealer
+ 1'158 additional samples on MalwareBazaar
Result
Malware family:
snakekeylogger
Create hunting rule
Score:
  10/10
Tags:
family:oski family:snakekeylogger discovery infostealer keylogger spyware stealer
Link:
https://tria.ge/reports/210524-6r7qgqrmds/
Behaviour
Checks processor information in registry
Kills process with taskkill
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Oski
Snake Keylogger
Snake Keylogger Payload
Malware Config
C2 Extraction:
195.133.40.80
https://api.telegram.org/bot1761516426:AAE3Juu_v6fG9Gy1S33LdTvyz85ua-duZsk/sendMessage?chat_id=1727399585
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Vobfus
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/bdce23fe0fa2ff5498bcf09b53315afb9ce0b21f5cedaf2d545be614d0dcaf57

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:MALWARE_Win_Vidar
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:Vidar
Create hunting rule
Author:kevoreilly
Description:Vidar Payload
Rule name:win_oski_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_oski_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

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/161258/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-24 07:21:56 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0032.001] Data Micro-objective::CRC32::Checksum
1) [C0026.002] Data Micro-objective::XOR::Encode Data
3) [C0045] File System Micro-objective::Copy File
4) [C0046] File System Micro-objective::Create Directory
5) [C0048] File System Micro-objective::Delete Directory
6) [C0047] File System Micro-objective::Delete File
7) [C0049] File System Micro-objective::Get File Attributes
8) [C0051] File System Micro-objective::Read File
9) [C0050] File System Micro-objective::Set File Attributes
10) [C0052] File System Micro-objective::Writes File
11) [E1510] Impact::Clipboard Modification
12) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
13) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
14) [C0036.007] Operating System Micro-objective::Delete Registry Value::Registry
15) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
16) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
17) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
18) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
19) [C0017] Process Micro-objective::Create Process
20) [C0038] Process Micro-objective::Create Thread
21) [C0018] Process Micro-objective::Terminate Process