MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cb24694242c1c1618678711184ab8abe6a1335d348f3549d2b568d99f793bf28. 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: 8
| SHA256 hash: | cb24694242c1c1618678711184ab8abe6a1335d348f3549d2b568d99f793bf28 |
|---|---|
| SHA3-384 hash: | 1c3086392d38d4ffb54a6afc5f0df9b9e2d271d6aec8b04e1bc6018eb1eeb0d8534424f227acbaa07246a969b6b4d59c |
| SHA1 hash: | 30d9eaaf3479d8ad96c48bd6b50bafd3f6c8109e |
| MD5 hash: | 6499db453f730b19e2c1f82cd2a2bbb3 |
| humanhash: | uniform-maryland-victor-nevada |
| File name: | Purchase OrderJPG.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 1'006'080 bytes |
| First seen: | 2021-04-26 14:56:35 UTC |
| Last seen: | 2021-04-26 15:47:27 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'754 x AgentTesla, 19'660 x Formbook, 12'252 x SnakeKeylogger) |
| ssdeep | 12288:tdqufowf7kXKKv+hgRjk1ZhdcZ+QSOR1vqVcZVitTRcy+7myb4abXlDeuEBhSLst:tsQkXKKk3hCoQSU1RVZ7mu4ahOnEb6 |
| Threatray | 1'047 similar samples on MalwareBazaar |
| TLSH | 3625F12166586B99E43B13BA58718E0413FFBC1E9371E21D7DAFB0AFD9727420027A17 |
| Reporter |  abuse_ch |
| Tags: | exe OskiStealer |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| http://ourfirm.com/6.jpg | https://threatfox.abuse.ch/ioc/10181/ |
| http://ourfirm.com/1.jpg | https://threatfox.abuse.ch/ioc/10182/ |
| http://ourfirm.com/2.jpg | https://threatfox.abuse.ch/ioc/10183/ |
| http://ourfirm.com/3.jpg | https://threatfox.abuse.ch/ioc/10184/ |
| http://ourfirm.com/4.jpg | https://threatfox.abuse.ch/ioc/10185/ |
| http://ourfirm.com/5.jpg | https://threatfox.abuse.ch/ioc/10186/ |
| http://ourfirm.com/7.jpg | https://threatfox.abuse.ch/ioc/10187/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase OrderJPG.exe
Verdict:
Malicious activity
Analysis date:
2021-04-26 14:57:51 UTC
Tags:
trojan stealer vidar loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.spyw.evad
Score:
76 / 100
Signature
Downloads files with wrong headers with respect to MIME Content-Type
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Posts data to a JPG file (protocol mismatch)
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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Generic
Status:
Suspicious
First seen:
2021-04-26 14:57:08 UTC
AV detection:
6 of 47 (12.77%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 1'037 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Checks processor information in registry
Kills process with taskkill
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
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Unpacked files
SH256 hash:
e90a19eba5f2de3ba82f652221105bb0682b07c20abddec487c6f4354ea79c39
MD5 hash:
efb0de4397ea61e17d262e278b53ff86
SHA1 hash:
727fdf2ceb13262d56bdda24a02564fb3e80c8b0
SH256 hash:
cb24694242c1c1618678711184ab8abe6a1335d348f3549d2b568d99f793bf28
MD5 hash:
6499db453f730b19e2c1f82cd2a2bbb3
SHA1 hash:
30d9eaaf3479d8ad96c48bd6b50bafd3f6c8109e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
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: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | MALWARE_Win_Vidar |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Vidar / ArkeiStealer |
| Rule name: | Vidar |
|---|---|
| Author: | kevoreilly |
| Description: | Vidar Payload |
| Rule name: | win_oski_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
| Rule name: | win_oski_g0 |
|---|---|
| Author: | Slavo Greminger, SWITCH-CERT |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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