MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fdd6b649413776c157e7029b545d9e47a62b9decd6b2a11ca1708fd4363945a8. 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: 9
| SHA256 hash: | fdd6b649413776c157e7029b545d9e47a62b9decd6b2a11ca1708fd4363945a8 |
|---|---|
| SHA3-384 hash: | 782950d65e31657521de2f1d82900cf3a5b0114b611658da0c82badbb13ece17d3f2baa177f0591ffc283b0a94fe187a |
| SHA1 hash: | 233a8c7afcc6824e791500a3ea4727e04535ce47 |
| MD5 hash: | b08a05459460a65935839eedb7f36569 |
| humanhash: | beryllium-wolfram-charlie-item |
| File name: | fdd6b649413776c157e7029b545d9e47a62b9decd6b2a.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 225'592 bytes |
| First seen: | 2021-04-28 12:16:36 UTC |
| Last seen: | 2021-04-28 13:03:32 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 6144:MK57m1tfUeAIQHuA36cdk8NqroBlCKwfq6:MKGeeAItC66kCqr6cFD |
| Threatray | 1'066 similar samples on MalwareBazaar |
| TLSH | D324F142AFC8D211EAE13E35AEB2B3644D75BD01BD21DE9F58D8F31BCA70A40D564326 |
| 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://203.159.80.206/6.jpg | https://threatfox.abuse.ch/ioc/19675/ |
| http://203.159.80.206/1.jpg | https://threatfox.abuse.ch/ioc/19676/ |
| http://203.159.80.206/2.jpg | https://threatfox.abuse.ch/ioc/19677/ |
| http://203.159.80.206/3.jpg | https://threatfox.abuse.ch/ioc/19678/ |
| http://203.159.80.206/4.jpg | https://threatfox.abuse.ch/ioc/19679/ |
| http://203.159.80.206/5.jpg | https://threatfox.abuse.ch/ioc/19680/ |
| http://203.159.80.206/7.jpg | https://threatfox.abuse.ch/ioc/19681/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fdd6b649413776c157e7029b545d9e47a62b9decd6b2a.exe
Verdict:
No threats detected
Analysis date:
2021-04-28 12:22:44 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Sending a UDP request
Creating a file
Deleting a recently created file
Replacing files
Creating a window
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:
Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Creates an undocumented autostart registry key
Downloads files with wrong headers with respect to MIME Content-Type
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-04-28 12:17:15 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 1'056 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:
7be26387388e263403db41956c18acb56c0beff4a0169a5b063b03e0668f60f4
MD5 hash:
9c22e37014b9b3b781c6eb7e30745b8f
SHA1 hash:
ee48ec1b45941f1796d313bd4a573b6a489e76ed
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
c0ce2cf58bbfebb58d003bb17a189e96a376b69a89242a19e34e625f32bb78ab
MD5 hash:
d1076d69ad47c02a6baeacd06b13eccd
SHA1 hash:
e08d7460fba61eba7cad811aa0aed4ce6d52efe7
SH256 hash:
9fa4d1715ea72c52b3941c76cee3243ebc64d283425a0d2e4fcfd0c5aa910739
MD5 hash:
3edc8ade71b56e3cfd625b5881df1dfa
SHA1 hash:
282c37e6d371e1a359e61bde4c91d96dab5008a2
SH256 hash:
fdd6b649413776c157e7029b545d9e47a62b9decd6b2a11ca1708fd4363945a8
MD5 hash:
b08a05459460a65935839eedb7f36569
SHA1 hash:
233a8c7afcc6824e791500a3ea4727e04535ce47
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | dsc |
|---|---|
| Author: | Aaron DeVera |
| Description: | Discord domains |
| Rule name: | INDICATOR_KB_CERT_04f131322cc31d92c849fca351d2f141 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables signed with stolen, revoked or invalid certificates |
| 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.
Web download
Delivery method
Distributed via web download
Comments
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
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0) [B0023] Execution::Install Additional Program