MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0e48c4f16c0c065a58e110a06ed8a2763995267d81b29750a4342820aafb5a59. 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: 11


Intelligence 11 IOCs 7 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0e48c4f16c0c065a58e110a06ed8a2763995267d81b29750a4342820aafb5a59
SHA3-384 hash: 66c26e711137f834b1aac902a24390ccad41f8f57010d4cde740067c7e5bd54dea1d73a9086de3088f12b8830893000a
SHA1 hash: e014dc16b105cf9af13c57f0efaddeb85b9f9a56
MD5 hash: a0427ddbde4bdd4583ee4d0823b0783d
humanhash: freddie-johnny-alaska-skylark
File name:a0427ddbde4bdd4583ee4d0823b0783d.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:578'048 bytes
First seen:2021-05-26 16:55:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:tcge6Y/8FEtshv3dYHISaAPU7VsAG0zQlwp2m3BiGec9xMsIoQU7JQd:9zvNTY6MiMj
Threatray 1'307 similar samples on MalwareBazaar
TLSH E7C4493439EB501AB173EEAA4BE475E6DA2FB7733B07646D1091038A4723A41DEC153E
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://support121.ddns.net/6.jpg

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://support121.ddns.net/6.jpg https://threatfox.abuse.ch/ioc/64466/
http://support121.ddns.net/1.jpg https://threatfox.abuse.ch/ioc/64467/
http://support121.ddns.net/2.jpg https://threatfox.abuse.ch/ioc/64468/
http://support121.ddns.net/3.jpg https://threatfox.abuse.ch/ioc/64469/
http://support121.ddns.net/4.jpg https://threatfox.abuse.ch/ioc/64470/
http://support121.ddns.net/5.jpg https://threatfox.abuse.ch/ioc/64471/
http://support121.ddns.net/7.jpg https://threatfox.abuse.ch/ioc/64472/

Intelligence

File Origin
# of uploads :
1
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a0427ddbde4bdd4583ee4d0823b0783d.exe
Verdict:
Malicious activity
Analysis date:
2021-05-26 22:23:48 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/02b77f79-ee55-4d8b-bb36-76e1c6e0c05d

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/162454/
Detection(s):
Win.Packed.Barys-6841771-0
Create hunting rule

Win.Malware.Barys-6841772-0
Create hunting rule

Win.Packed.Barys-6841774-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Launching a process
Creating a process with a hidden window
Launching the default Windows debugger (dwwin.exe)
Sending a UDP request
Creating a file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Blocking a possibility to launch for cmd.exe command interpreter
Blocking a possibility to launch for the Windows Task Manager (taskmgr)
Changing the hosts file
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:
Oski
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/792896
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Disables the Windows task manager (taskmgr)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the hosts file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Uses cmd line tools excessively to alter registry or file data
Writes to foreign memory regions
Yara detected Oski Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 425298 Sample: ggmXZsUIgO.exe Startdate: 26/05/2021 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus / Scanner detection for submitted sample 2->39 41 3 other signatures 2->41 7 ggmXZsUIgO.exe 5 2->7         started        process3 file4 27 C:\Windows\Temp\svhost.exe, PE32 7->27 dropped 29 C:\Windows\System32\drivers\etc\hosts, ASCII 7->29 dropped 31 C:\Users\user\AppData\...\ggmXZsUIgO.exe.log, ASCII 7->31 dropped 43 Uses cmd line tools excessively to alter registry or file data 7->43 45 Writes to foreign memory regions 7->45 47 Allocates memory in foreign processes 7->47 49 3 other signatures 7->49 11 svhost.exe 7->11         started        14 reg.exe 1 1 7->14         started        16 svhost.exe 7->16         started        18 3 other processes 7->18 signatures5 process6 signatures7 51 Detected unpacking (changes PE section rights) 11->51 53 Detected unpacking (overwrites its own PE header) 11->53 55 Disables the Windows task manager (taskmgr) 14->55 20 conhost.exe 14->20         started        22 WerFault.exe 23 9 16->22         started        25 conhost.exe 18->25         started        process8 dnsIp9 33 192.168.2.1 unknown unknown 22->33
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0e48c4f16c0c065a58e110a06ed8a2763995267d81b29750a4342820aafb5a59/
Threat name:
Win32.Ransomware.Clinix
Create hunting rule
Status:
Malicious
First seen:
2021-05-24 05:57:20 UTC
AV detection:
35 of 47 (74.47%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bzemj4lmbqdfuwhbccqg5wfcoy4zkjt5qgzjoufegqucbkx3ljmq._file
Verdict:
malicious
Similar samples:
0768e83e8d36f21ea90867dcf3935ee48795daf2e4a0017979e752b865c95d9e
OskiStealer
1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332
OskiStealer
37f96df377557cad9bdb2caa4064bbf4dd862e935a64e1d802d445358695e15c
OskiStealer
3aeccf51ec935646a4987a1683d5dd8a251d171d326041282759753e371dff4f
OskiStealer
604e8bce3d31f5e04fe9622cedeb0696a69b9cb7f262a9bb33009ede20df100a
OskiStealer
916bd03b40de6bfa498311e3a70d3e98c50e8255fd413d446daab77951224856
OskiStealer
9b26547086a1489e5534452021694af3a565fe76926e671112be4852947a5d27
OskiStealer
c41aa6d6eeac57851b0a00a619609ed764072881b85b7dad25ac30f2856eda43
OskiStealer
cb24694242c1c1618678711184ab8abe6a1335d348f3549d2b568d99f793bf28
OskiStealer
db127ccf5ea69c0bc3888efe5ae2a532c5f5590a2f589f049139fcf63f5e8062
OskiStealer
+ 1'297 additional samples on MalwareBazaar
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
family:oski evasion infostealer
Link:
https://tria.ge/reports/210526-rwbmxmrcwn/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Disables Task Manager via registry modification
Drops file in Drivers directory
Executes dropped EXE
Oski
Malware Config
C2 Extraction:
support121.ddns.net
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.85
Link:
https://yomi.yoroi.company/submissions/0e48c4f16c0c065a58e110a06ed8a2763995267d81b29750a4342820aafb5a59

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:Andromeda_MalBot_Jun_1A
Create hunting rule
Author:Florian Roth
Description:Detects a malicious Worm Andromeda / RETADUP
Reference:http://blog.trendmicro.com/trendlabs-security-intelligence/information-stealer-found-hitting-israeli-hospitals/
Rule name:MALWARE_Win_Vidar
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Cape
Cape
https://www.capesandbox.com/analysis/162454/

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