MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aced60ae902ad2acddb74c078406a2f9d669609f6571505754d4b78e3b439305. 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: 11


Intelligence 11 IOCs 7 YARA 2 File information Comments

SHA256 hash: aced60ae902ad2acddb74c078406a2f9d669609f6571505754d4b78e3b439305
SHA3-384 hash: 779bac074573cc48dca28e6b8c4d20394fb451309ef8d32346b04d6d9ebd93ee57cf0c3cfee2da7707cec20ded21dd24
SHA1 hash: 873f7bc1e561d84205597b7aa206780845f283b9
MD5 hash: 5edde4ed826fc952e644987e934533ee
humanhash: football-wisconsin-georgia-grey
File name:5edde4ed826fc952e644987e934533ee.exe
Download: download sample
Signature OskiStealer
File size:438'784 bytes
First seen:2022-01-12 09:26:16 UTC
Last seen:2022-01-12 13:08:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 6144:fvCyECPBLyvmI9DO4SdxnaWKVByK+I2Ig5X6RNu1cEfqK7sI7sNzPNVLhrDDJ7tf:CyEcw31EVaWLKOXyhJCf2vhPltGG
TLSH T1709412262BB95367C97963B91521923047F5F2963A13C68D8DC0F2E73C6A382C542BF7
File icon (PE):PE icon
dhash icon b3b3333969693b3b (69 x Formbook, 63 x AgentTesla, 26 x Loki)
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://modexdeals.ir/6.jpg

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
http://modexdeals.ir/6.jpg https://threatfox.abuse.ch/ioc/294144/
http://modexdeals.ir/1.jpg https://threatfox.abuse.ch/ioc/294145/
http://modexdeals.ir/2.jpg https://threatfox.abuse.ch/ioc/294146/
http://modexdeals.ir/3.jpg https://threatfox.abuse.ch/ioc/294147/
http://modexdeals.ir/4.jpg https://threatfox.abuse.ch/ioc/294148/
http://modexdeals.ir/5.jpg https://threatfox.abuse.ch/ioc/294149/
http://modexdeals.ir/7.jpg https://threatfox.abuse.ch/ioc/294150/

Intelligence


File Origin
# of uploads :
3
# of downloads :
226
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5edde4ed826fc952e644987e934533ee.exe
Verdict:
Malicious activity
Analysis date:
2022-01-12 09:29:20 UTC
Tags:
trojan stealer vidar loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Reading critical registry keys
Delayed writing of the file
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Stealing user critical data
Launching a tool to kill processes
Gathering data
Result
Verdict:
UNKNOWN
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
Verdict:
Malicious
Result
Threat name:
Oski Stealer Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Downloads files with wrong headers with respect to MIME Content-Type
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Posts data to a JPG file (protocol mismatch)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Yara detected AntiVM3
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-01-12 09:27:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Checks processor information in registry
Kills process with taskkill
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
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Malware Config
C2 Extraction:
modexdeals.ir
Unpacked files
SH256 hash:
e7880861150af66031cecfacd77876b10c00bb77fef259c69015b2832809c165
MD5 hash:
444ea2da4824ff66f722b4f479126300
SHA1 hash:
8c455d11b48ddd1da76ddc1fc9a5793f3dca554a
SH256 hash:
dc015ecbe0cd9a068ce6acf95a87591a75cf8dc6e940b66f1d901011b8b606ac
MD5 hash:
a2045603cafce60ecc3de67efdffecbb
SHA1 hash:
2b54fe7cda651cebc901180604f5337a26fa78ca
SH256 hash:
aced60ae902ad2acddb74c078406a2f9d669609f6571505754d4b78e3b439305
MD5 hash:
5edde4ed826fc952e644987e934533ee
SHA1 hash:
873f7bc1e561d84205597b7aa206780845f283b9
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

OskiStealer

Executable exe aced60ae902ad2acddb74c078406a2f9d669609f6571505754d4b78e3b439305

(this sample)

  
Delivery method
Distributed via web download

Comments