MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c53cbedc20ce9cf5b5e69fac6211133faa197f85b214a865f71cf4e0879dd99. 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: 13


Intelligence 13 IOCs 7 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c53cbedc20ce9cf5b5e69fac6211133faa197f85b214a865f71cf4e0879dd99
SHA3-384 hash: 11c575ff5f5fb211ef997cb116759bcfed917b2f76d08680093c4ca9e290f19f52de0d3135446541790f9b8ff84b0a61
SHA1 hash: f38291c94071200290251937b091a3ac0565c00f
MD5 hash: 9f8456f6d52c0afbbbb4600c383c051a
humanhash: maine-georgia-mango-nevada
File name:New Order.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:612'352 bytes
First seen:2022-05-04 07:51:21 UTC
Last seen:2022-05-04 08:37:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'595 x Formbook, 12'238 x SnakeKeylogger)
ssdeep 12288:FwEPfz3hJArvBE2daO9scfzdc34V1gP2cNGa1pvBgj20G7t:Fj3Ar5Eg2Ezdc34fxcNZBgj20G
Threatray 4'438 similar samples on MalwareBazaar
TLSH T171D49CF132419BD7DD3BAB3A12994E5023F1527AD322F7072FE023E90653D6F1966A81
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://st4q2p.xyz/6.jpg

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://st4q2p.xyz/6.jpg https://threatfox.abuse.ch/ioc/548056/
http://st4q2p.xyz/1.jpg https://threatfox.abuse.ch/ioc/548057/
http://st4q2p.xyz/2.jpg https://threatfox.abuse.ch/ioc/548058/
http://st4q2p.xyz/3.jpg https://threatfox.abuse.ch/ioc/548059/
http://st4q2p.xyz/4.jpg https://threatfox.abuse.ch/ioc/548060/
http://st4q2p.xyz/5.jpg https://threatfox.abuse.ch/ioc/548061/
http://st4q2p.xyz/7.jpg https://threatfox.abuse.ch/ioc/548062/

Intelligence

File Origin
# of uploads :
2
# of downloads :
274
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
New Order.exe
Verdict:
Malicious activity
Analysis date:
2022-05-04 07:57:54 UTC
Tags:
trojan stealer vidar loader phishing oski
Link:
https://app.any.run/tasks/e46d42ec-7d7e-43c4-a8e0-4c56b7d696e7

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/268564/
Detection(s):
SecuriteInfo.com.Trojan.Siggen17.48131.11600.22799.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
DNS request
Reading critical registry keys
Delayed writing of the file
Running batch commands
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/627230878d02701a7e96574a/reports/f9263b57-8a4e-4c77-b6a4-060b4b289eb4/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.
Gathering data
Result
Threat name:
Oski Stealer Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/987582
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates files in alternative data streams (ADS)
Creates HTML files with .exe extension (expired dropper behavior)
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
Injects a PE file into a foreign processes
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
Performs DNS queries to domains with low reputation
Posts data to a JPG file (protocol mismatch)
Snort IDS alert for network traffic
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 steal Crypto Currency Wallets
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 620094 Sample: New Order.exe Startdate: 04/05/2022 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 18 other signatures 2->51 8 New Order.exe 6 2->8         started        process3 file4 27 C:\Users\user\AppData\...\LlAcqqDPnbTr.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\Local\...\tmp41DD.tmp, XML 8->29 dropped 31 C:\Users\user\AppData\...31ew Order.exe.log, ASCII 8->31 dropped 53 Injects a PE file into a foreign processes 8->53 12 New Order.exe 199 8->12         started        17 schtasks.exe 1 8->17         started        signatures5 process6 dnsIp7 41 st4q2p.xyz 172.67.141.87, 49758, 80 CLOUDFLARENETUS United States 12->41 43 www.sendspace.com 172.67.141.102, 443, 49767, 49768 CLOUDFLARENETUS United States 12->43 33 C:\...\311038848103.exe:Zone.Identifier, ASCII 12->33 dropped 35 C:\ProgramData\311038848103.exe, HTML 12->35 dropped 37 C:\ProgramData\vcruntime140.dll, PE32 12->37 dropped 39 6 other files (none is malicious) 12->39 dropped 55 Creates files in alternative data streams (ADS) 12->55 57 Tries to harvest and steal browser information (history, passwords, etc) 12->57 59 Tries to steal Crypto Currency Wallets 12->59 19 cmd.exe 1 12->19         started        21 conhost.exe 17->21         started        file8 signatures9 process10 process11 23 taskkill.exe 1 19->23         started        25 conhost.exe 19->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1c53cbedc20ce9cf5b5e69fac6211133faa197f85b214a865f71cf4e0879dd99/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-04 07:52:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
18 of 42 (42.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=drj4x3ocbtu46w26nh5mmiirgp5kdf7ylmquvbs7ohhu4cdz3wmq._file
Verdict:
malicious
Similar samples:
14a2149ffb9dc7a2bfa96e92ee4d7052222d5550431ffebc471b31859b397024
OskiStealer
191db013c67081442ef5e75edd00c2572f6ec9d7f629ddac9bba8942722c061d
OskiStealer
6107e3ec5898ce2f80b04ee16b3a41107a0733339cded01cf8c5ade5fc105472
OskiStealer
8399c97b606bb6613f99006964a47064e402e6489574b85db7a9872f601886b2
OskiStealer
aec9eb81f2a2837488165119d41da8eec94607b9bde0b729f811ced008ad95cb
OskiStealer
fabe67cd06d71d24a03fe0d11e62e975de4c58903bcbc35f48a3a566970c228c
OskiStealer
+ 4'428 additional samples on MalwareBazaar
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
family:oski discovery infostealer spyware stealer suricata
Link:
https://tria.ge/reports/220504-jqedlsgbcp/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Kills process with taskkill
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Malware Config
C2 Extraction:
st4q2p.xyz
Unpacked files
SH256 hash:
562529b4ca737b6b664703bdaa72e8ba88ded7e849c5695b5d66fa8f4b4b995c
MD5 hash:
8e075938bbd25a3c76aeb5e745732a78
SHA1 hash:
f0de222fbdf0f2baace920fddf3a284552793ecf
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/e842de84-cc14-465a-8ac5-3d751f34700b/
Parent samples :
1c53cbedc20ce9cf5b5e69fac6211133faa197f85b214a865f71cf4e0879dd99
de4f644a7b3c3248eff98dab022224f128f071a136b4c09eef7a54a0c11fbed3
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/e842de84-cc14-465a-8ac5-3d751f34700b/
SH256 hash:
db19ce83d4e37fc81361dcfbfccf25134c12ad9ce828d2b1774a3820bce19535
MD5 hash:
cca0cc8b0850d29262d1e04ffd1800b4
SHA1 hash:
3f2e9def8de1d7faca7eaa7ead071231d0dc0655
Link:
https://www.unpac.me/results/e842de84-cc14-465a-8ac5-3d751f34700b/
SH256 hash:
1c53cbedc20ce9cf5b5e69fac6211133faa197f85b214a865f71cf4e0879dd99
MD5 hash:
9f8456f6d52c0afbbbb4600c383c051a
SHA1 hash:
f38291c94071200290251937b091a3ac0565c00f
Link:
https://www.unpac.me/results/e842de84-cc14-465a-8ac5-3d751f34700b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1c53cbedc20c/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/1c53cbedc20ce9cf5b5e69fac6211133faa197f85b214a865f71cf4e0879dd99

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/268564/

Comments