MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bed7bde808f7f069703d1655dd9762ec3744f7d991218654f2f6f41fc6383e6d. 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 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bed7bde808f7f069703d1655dd9762ec3744f7d991218654f2f6f41fc6383e6d
SHA3-384 hash: fe8c51c6843cecd072359dfce3e236fdaa279b0622d3ecf9c4696520f4ecb571c66e61a880d2a555ed8a5be207781240
SHA1 hash: 1461c5cf12989068b1afd4bdd0514850ab99b188
MD5 hash: 1e3efd26f966bca4f18c36d64fa21341
humanhash: harry-skylark-enemy-fanta
File name:IMG0111060269.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:289'776 bytes
First seen:2021-06-14 06:11:12 UTC
Last seen:2021-06-14 06:48:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:VgsKXQ42ZYJ2IJIRDuX27daSpkgiBW9WrDw1yEgU1:+LQS9JEKG7VRiBkW/wgU1
TLSH 7A54022B43CB5601E98A0BF55CE28C5BA5F9E320182F66F37449293FDE09B879712137
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://178.17.174.38/6.jpg

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://178.17.174.38/6.jpg https://threatfox.abuse.ch/ioc/104737/

Intelligence

File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IMG0111060269.exe
Verdict:
No threats detected
Analysis date:
2021-06-14 06:13:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2152134d-03ac-453d-a0a6-136f9c90cd81

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.835.17990.19667.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file
Deleting a recently created file
Replacing files
Creating a window
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:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c183596a-127d-468d-9ff7-a74a844bc8f1
Result
Threat name:
Oski Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/801536
Signature
Allocates memory in foreign processes
Creates an undocumented autostart registry key
Downloads files with wrong headers with respect to MIME Content-Type
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
Writes to foreign memory regions
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 433933 Sample: IMG0111060269.exe Startdate: 14/06/2021 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected Oski Stealer 2->47 49 7 other signatures 2->49 8 IMG0111060269.exe 19 2->8         started        process3 file4 25 C:\Users\user\AppData\Roaming\...\notpad.exe, PE32 8->25 dropped 27 C:\Users\user\AppData\...\IMG0111060269.exe, PE32 8->27 dropped 29 C:\Users\user\...\notpad.exe:Zone.Identifier, ASCII 8->29 dropped 31 2 other malicious files 8->31 dropped 51 Creates an undocumented autostart registry key 8->51 53 Writes to foreign memory regions 8->53 55 Allocates memory in foreign processes 8->55 57 Injects a PE file into a foreign processes 8->57 12 IMG0111060269.exe 193 8->12         started        17 IMG0111060269.exe 8->17         started        signatures5 process6 dnsIp7 41 178.17.174.38, 49734, 49735, 80 TRABIAMD Moldova Republic of 12->41 33 C:\ProgramData\vcruntime140.dll, PE32 12->33 dropped 35 C:\ProgramData\sqlite3.dll, PE32 12->35 dropped 37 C:\ProgramData\softokn3.dll, PE32 12->37 dropped 39 4 other files (none is malicious) 12->39 dropped 59 Tries to harvest and steal browser information (history, passwords, etc) 12->59 61 Tries to steal Crypto Currency Wallets 12->61 19 cmd.exe 1 12->19         started        63 Machine Learning detection for dropped file 17->63 file8 signatures9 process10 process11 21 taskkill.exe 1 19->21         started        23 conhost.exe 19->23         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bed7bde808f7f069703d1655dd9762ec3744f7d991218654f2f6f41fc6383e6d/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-06-14 05:06:33 UTC
AV detection:
8 of 46 (17.39%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x3l332ai67ygs4b5czk53f3c5q3uj56zseqymvhs632b7rryhzwq._file
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
family:oski discovery infostealer spyware stealer
Link:
https://tria.ge/reports/210614-r95fdsptzj/
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
Malware Config
C2 Extraction:
178.17.174.38
Unpacked files
SH256 hash:
6f4581c54b64489e24330b2a2d5a494da981ad3efb2eedb64903fda7add93b7d
MD5 hash:
1d8d47d772ff4c695991778194d39b67
SHA1 hash:
fd7c1084044ecf6eb6cb65850db434734294c1bf
Link:
https://www.unpac.me/results/3b5775c5-fdf1-4de8-b10f-7e73344a68aa/
SH256 hash:
e63ed9558060f52f720ee05eb1dffa279610db7aac741c12d634b0bb227ffa13
MD5 hash:
a4e6af2ddb073e432492158d418173d9
SHA1 hash:
fafde8830356010c2745515dabe112ba3e13bfb3
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/3b5775c5-fdf1-4de8-b10f-7e73344a68aa/
SH256 hash:
97c691c065ed89a7ebde3361ea851d731d7b154aafae07d767285a6c7337ef20
MD5 hash:
05be05714dca36e0be02556892d6565c
SHA1 hash:
8b8bd87d9f355a0988f3ada4e6e65be7c48f07e8
Link:
https://www.unpac.me/results/3b5775c5-fdf1-4de8-b10f-7e73344a68aa/
SH256 hash:
bed7bde808f7f069703d1655dd9762ec3744f7d991218654f2f6f41fc6383e6d
MD5 hash:
1e3efd26f966bca4f18c36d64fa21341
SHA1 hash:
1461c5cf12989068b1afd4bdd0514850ab99b188
Link:
https://www.unpac.me/results/3b5775c5-fdf1-4de8-b10f-7e73344a68aa/
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/bed7bde808f7f069703d1655dd9762ec3744f7d991218654f2f6f41fc6383e6d

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:INDICATOR_KB_CERT_1f3216f428f850be2c66caa056f6d821
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments