MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bbe006688e5f74473a5e248bc83651cbb7e9efbe8410abb8d8b84b4a59ed7750. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bbe006688e5f74473a5e248bc83651cbb7e9efbe8410abb8d8b84b4a59ed7750
SHA3-384 hash: 2848e454eef225d5ac691009c9ea4dee1f1459dc74647bafd31ace05efeeb8850504b6ff7c6246e76c2354ce729798e8
SHA1 hash: e6dcb19362e88b50ab1990e7032437072f104e98
MD5 hash: 8663ed0caec9adcb980a4a7ea23e7984
humanhash: sweet-pip-mexico-west
File name:8663ed0caec9adcb980a4a7ea23e7984.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:1'360'384 bytes
First seen:2021-08-02 05:59:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:0+Mt76DOkfx8Dgyfx8DgYd6ph9Jxg6AQ9l3zIiLsLznD9IzlTwDZYLL:Ot76B58Dgy58DgYd6XbxglkDIiLsLzng
Threatray 470 similar samples on MalwareBazaar
TLSH T10E55E09A7840DABBD61C17B55118D49042B9AC18D227FBFFBE6231B223E1A794F14CF1
dhash icon 92aeae8eb682b2b2 (3 x AgentTesla, 2 x OskiStealer, 1 x QuasarRAT)
Reporter abuse_ch
Tags:exe OskiStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
558
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8663ed0caec9adcb980a4a7ea23e7984.exe
Verdict:
Malicious activity
Analysis date:
2021-08-02 06:06:35 UTC
Tags:
trojan stealer vidar
Link:
https://app.any.run/tasks/24c7995e-0eea-4824-9ec3-76f03850561c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/175683/
Detection(s):
SecuriteInfo.com.Artemis8663ED0CAEC9.15450.26676.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a file in the %temp% directory
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Enabling autorun by creating a file
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ac10f37f-bd0a-4daf-9a5d-06f3e1d3c5aa
Result
Threat name:
Oski
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/825303
Signature
Adds a directory exclusion to Windows Defender
Found malware configuration
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Posts data to a JPG file (protocol mismatch)
Sigma detected: Powershell Defender Exclusion
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Oski Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 457715 Sample: ENXcmU1LzQ.exe Startdate: 02/08/2021 Architecture: WINDOWS Score: 100 46 Multi AV Scanner detection for domain / URL 2->46 48 Found malware configuration 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 7 other signatures 2->52 7 ENXcmU1LzQ.exe 7 2->7         started        process3 file4 34 C:\Users\user\AppData\Roaming\ImauUieIe.exe, PE32 7->34 dropped 36 C:\Users\...\ImauUieIe.exe:Zone.Identifier, ASCII 7->36 dropped 38 C:\Users\user\AppData\Local\...\tmp7068.tmp, XML 7->38 dropped 40 C:\Users\user\AppData\...NXcmU1LzQ.exe.log, ASCII 7->40 dropped 54 Uses schtasks.exe or at.exe to add and modify task schedules 7->54 56 Adds a directory exclusion to Windows Defender 7->56 11 ENXcmU1LzQ.exe 7->11         started        15 powershell.exe 21 7->15         started        17 powershell.exe 23 7->17         started        19 2 other processes 7->19 signatures5 process6 dnsIp7 42 fine.le-pearl.com 108.167.158.96, 49715, 80 UNIFIEDLAYER-AS-1US United States 11->42 44 192.168.2.1 unknown unknown 11->44 58 Tries to harvest and steal browser information (history, passwords, etc) 11->58 21 WerFault.exe 11->21         started        24 conhost.exe 15->24         started        26 conhost.exe 17->26         started        28 conhost.exe 19->28         started        30 conhost.exe 19->30         started        signatures8 process9 file10 32 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 21->32 dropped
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bbe006688e5f74473a5e248bc83651cbb7e9efbe8410abb8d8b84b4a59ed7750/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xpqam2eol52eoos6esf4qnsrzo36t356qqikxogyxbfuuwpno5ia._file
Verdict:
malicious
Similar samples:
244e43b042445635b9311f0a575a30bf27644ec34e5fc7085447f09859c7d968
OskiStealer
2efb273760c5f443d4fc9269ba66f258debf0d9c68ca5172a2d947a39fefe148
OskiStealer
5a38b12ebce12dde580da36ee1b4a5c0387f9e81f7f738c278b60d5781dad6eb
OskiStealer
6468b58d9c481755e1127b53474bca14820c3aa6da2d8df05900a86a900c7b41
OskiStealer
9db40f7f060e08b2891dc881c6f6d1ea165b56747b4302fd96e53d8bd194d8d5
OskiStealer
a5c9be9bcb214e69a39285a634f95e43fdf1ad10536bcc9bce84be7edb48cb31
OskiStealer
bdce23fe0fa2ff5498bcf09b53315afb9ce0b21f5cedaf2d545be614d0dcaf57
OskiStealer
c41aa6d6eeac57851b0a00a619609ed764072881b85b7dad25ac30f2856eda43
OskiStealer
fa70879e6d23d44c96465a1c7a363846e99f1c94b14daef96bb6ff6c178e0236
OskiStealer
fdd6b649413776c157e7029b545d9e47a62b9decd6b2a11ca1708fd4363945a8
OskiStealer
+ 460 additional samples on MalwareBazaar
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
family:oski discovery infostealer spyware stealer suricata
Link:
https://tria.ge/reports/210802-bngzasczl6/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
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
Reads user/profile data of web browsers
Oski
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Malware Config
C2 Extraction:
fine.le-pearl.com
Unpacked files
SH256 hash:
664a2086112cfe9d1c5a9a47731329c4f5d133a20b9a58cf5fd6baf2358bf248
MD5 hash:
ab5450282e13ef8adb0629403b4f47c3
SHA1 hash:
d848b4f81c01692ef3cf48666cc6b37895b9cd11
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/d2717b66-6113-4a92-8205-504dd36626d9/
Parent samples :
a375d88a6666e7101b4f582ea0239033e4716e883ecb301245011e9c58054a9c
c0765fd53d64c425a848b89fa1168552fd2cae90984cfa14c0b7d4e0789fece7
bbe006688e5f74473a5e248bc83651cbb7e9efbe8410abb8d8b84b4a59ed7750
SH256 hash:
70146fd5fcd693c9192e630977506f764b0c1de4b3c203af94461061922ee9aa
MD5 hash:
f0f373139de368d8e4e928020fa5ec11
SHA1 hash:
2eea9e5ea229c8fa8ad35a6c9d538a35e61f7398
Link:
https://www.unpac.me/results/d2717b66-6113-4a92-8205-504dd36626d9/
SH256 hash:
cfef97ff706312dff4edd998aeee22f1283221631ebb0cc954bebbb701c1465c
MD5 hash:
a0f625a3d3348903f3c902f588c0e4f5
SHA1 hash:
20d1f0b74abe6f500e8c21119f55281926210ac0
Link:
https://www.unpac.me/results/d2717b66-6113-4a92-8205-504dd36626d9/
SH256 hash:
bbe006688e5f74473a5e248bc83651cbb7e9efbe8410abb8d8b84b4a59ed7750
MD5 hash:
8663ed0caec9adcb980a4a7ea23e7984
SHA1 hash:
e6dcb19362e88b50ab1990e7032437072f104e98
Link:
https://www.unpac.me/results/d2717b66-6113-4a92-8205-504dd36626d9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/bbe006688e5f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bbe006688e5f74473a5e248bc83651cbb7e9efbe8410abb8d8b84b4a59ed7750

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
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:quakbot_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:silentbuilder_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 bbe006688e5f74473a5e248bc83651cbb7e9efbe8410abb8d8b84b4a59ed7750

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/175683/
  
URLhaus
https://urlhaus.abuse.ch/url/1487362/
  
Delivery method
Distributed via web download

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