MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 01063f0c3fe705a4f04dc01658c6923f5a759aab1e01f061e31c79fd4f7c5ca8. 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


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 01063f0c3fe705a4f04dc01658c6923f5a759aab1e01f061e31c79fd4f7c5ca8
SHA3-384 hash: 21cb794cc4fe8842fd3d2fcebac6b744106a8d2835f071e61f1c573144c88f8c9ebc60a2c7c214d087b7f6c1964c415f
SHA1 hash: c1793e09e50c6a8016811c6b81008150969e19c6
MD5 hash: 88d1770a52e372a6bfa4526406701e60
humanhash: fourteen-hamper-mockingbird-romeo
File name:88d1770a52e372a6bfa4526406701e60.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:591'872 bytes
First seen:2021-04-28 14:36:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:MzPkx17m2lWIAvkq/YM5umZchws1G0MBRlieqQDJNdYCNj:J7m2l1aYcDZ4wsISeLfdFj
TLSH 14C4013053E88F56E1BFA7BD28B2500017F2B516E733E35D7E99009D0AB67C18696B63
Reporter abuse_ch
Tags:exe OskiStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ-NEW ORDER BERUIT 67271929.xlsx
Verdict:
Malicious activity
Analysis date:
2021-04-28 11:40:54 UTC
Tags:
exploit CVE-2017-11882 trojan stealer vidar loader
Link:
https://app.any.run/tasks/c94fa418-1343-4d25-bf06-0fc87c88845d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Vidar
Create hunting rule
Link:
https://www.capesandbox.com/analysis/145020/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.688-1.UNOFFICIAL
Create hunting rule

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:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/700788
Signature
Downloads files with wrong headers with respect to MIME Content-Type
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)
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 Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 399314 Sample: SBYnyLbDrt.exe Startdate: 28/04/2021 Architecture: WINDOWS Score: 96 35 Multi AV Scanner detection for submitted file 2->35 37 Yara detected AntiVM3 2->37 39 Yara detected Vidar stealer 2->39 41 5 other signatures 2->41 8 SBYnyLbDrt.exe 3 2->8         started        process3 file4 23 C:\Users\user\AppData\...\SBYnyLbDrt.exe.log, ASCII 8->23 dropped 43 Injects a PE file into a foreign processes 8->43 12 SBYnyLbDrt.exe 193 8->12         started        signatures5 process6 dnsIp7 33 ourfirm.com 92.204.132.28, 49704, 80 GO-DADDY-COM-LLCUS Germany 12->33 25 C:\ProgramData\vcruntime140.dll, PE32 12->25 dropped 27 C:\ProgramData\sqlite3.dll, PE32 12->27 dropped 29 C:\ProgramData\softokn3.dll, PE32 12->29 dropped 31 4 other files (none is malicious) 12->31 dropped 45 Tries to harvest and steal browser information (history, passwords, etc) 12->45 47 Tries to steal Crypto Currency Wallets 12->47 17 cmd.exe 1 12->17         started        file8 signatures9 process10 process11 19 taskkill.exe 1 17->19         started        21 conhost.exe 17->21         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/01063f0c3fe705a4f04dc01658c6923f5a759aab1e01f061e31c79fd4f7c5ca8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-28 14:13:27 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=aedd6db744c2j4cnyalfrrush5nhlgvldya7aypddr472t34lsua._file
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
family:oski discovery infostealer spyware stealer
Link:
https://tria.ge/reports/210428-38k1etegg2/
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
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Unpacked files
SH256 hash:
11cf5a51e593c007ff4f91294cf505ffd5e425e56387c60d81e6479cc284cc3b
MD5 hash:
73cc3f7e7700e6a54cb5f291dffe5aa1
SHA1 hash:
09174f9fa55c9bac0540efb7a8c682878a32d02d
Link:
https://www.unpac.me/results/56126c8c-757f-4d43-91f0-aa0b4ce36c9c/
SH256 hash:
01063f0c3fe705a4f04dc01658c6923f5a759aab1e01f061e31c79fd4f7c5ca8
MD5 hash:
88d1770a52e372a6bfa4526406701e60
SHA1 hash:
c1793e09e50c6a8016811c6b81008150969e19c6
Link:
https://www.unpac.me/results/56126c8c-757f-4d43-91f0-aa0b4ce36c9c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/01063f0c3fe705a4f04dc01658c6923f5a759aab1e01f061e31c79fd4f7c5ca8

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:MALWARE_Win_Vidar
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:Vidar
Create hunting rule
Author:kevoreilly
Description:Vidar Payload
Rule name:win_oski_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_oski_g0
Create hunting rule
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

OskiStealer

Executable exe 01063f0c3fe705a4f04dc01658c6923f5a759aab1e01f061e31c79fd4f7c5ca8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1179165/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/145020/

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