MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4277f535c9ba7220bd853269f0b2b75a702eb6c298240e4439179405072283dd. 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: | 4277f535c9ba7220bd853269f0b2b75a702eb6c298240e4439179405072283dd |
|---|---|
| SHA3-384 hash: | c5a573126db856462480c7058e414d617d08283fb3756c14b491e188a408b02c80f9977d7f0429737b3185e3cb26ce6d |
| SHA1 hash: | aa46ad15bb6fb5d90e139640578fd2bc33d6e6a1 |
| MD5 hash: | 5e947ca9bbb479131f613b845c742afb |
| humanhash: | steak-social-tennis-shade |
| File name: | SecuriteInfo.com.Trojan.GenericKD.46209995.12270.16799 |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 783'672 bytes |
| First seen: | 2021-04-30 18:03:48 UTC |
| Last seen: | 2021-05-05 10:56:20 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:r3KGeeAItC66zb7QhdxAjrarTo7skY2XqzB3jn/:+t9I09b7+cJYk5qzB3j/ |
| Threatray | 81 similar samples on MalwareBazaar |
| TLSH | 98F47C00A3ECA626D1EE3BB4B9702B1147F5FC06B576D74F99C8B5A99873B404C50BA3 |
| Reporter |  SecuriteInfoCom |
| Tags: | OskiStealer |
Intelligence
File Origin
# of uploads :
2
# of downloads :
134
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Sending a UDP request
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
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
Sigma detected: BlueMashroom DLL Load
Sigma detected: Mustang Panda Dropper
Sigma detected: NotPetya Ransomware Activity
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Lore
Status:
Malicious
First seen:
2021-04-29 16:06:59 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
unknown
Similar samples:
+ 71 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
7be26387388e263403db41956c18acb56c0beff4a0169a5b063b03e0668f60f4
MD5 hash:
9c22e37014b9b3b781c6eb7e30745b8f
SHA1 hash:
ee48ec1b45941f1796d313bd4a573b6a489e76ed
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
6186e2e4c158f650c89f90f7c15c2a0c1f7bb7ccdb4f3e76306a0d458af7113a
MD5 hash:
1c0c8177049892e7e561c6bdd3b14582
SHA1 hash:
d46e8a1ca119c02848742cfc19f1b203110e3840
SH256 hash:
627313c62d851ad8948930eaf1b3e18f7a34f6131e3502a59c357bd39615f07f
MD5 hash:
48a8b4e53668bae5b7ac1c5660a2ef5e
SHA1 hash:
8b776e6fdd9ca11feeca248e11f56c0f69efa682
SH256 hash:
4277f535c9ba7220bd853269f0b2b75a702eb6c298240e4439179405072283dd
MD5 hash:
5e947ca9bbb479131f613b845c742afb
SHA1 hash:
aa46ad15bb6fb5d90e139640578fd2bc33d6e6a1
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