MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0d0e571bf5bc85d8685228a91bc7e4d087df034ee1a089e24b57057e5767b9c4. 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


Intelligence 8 IOCs 7 YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0d0e571bf5bc85d8685228a91bc7e4d087df034ee1a089e24b57057e5767b9c4
SHA3-384 hash: 602489b79e1682a9aba1f02e2d0832e71c86c5b9e4c89d74aa7f8158ed4cd25b536b82df2a3130e67cd766ad9ea6b2ab
SHA1 hash: e9160714ad08b206204d647a245f89e73459e8b7
MD5 hash: 3b014082a0ebcbc1d47ced56f1404aab
humanhash: hawaii-georgia-enemy-colorado
File name:IMG061730811.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:660'976 bytes
First seen:2021-06-10 20:40:57 UTC
Last seen:2021-06-11 08:36:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'658 x Formbook, 12'249 x SnakeKeylogger)
ssdeep 12288:D1sHCHeNBpW62NaDio2gdPF4tWKG1Gu7iTQezjBwpCbCU1:D1+sF1yF4tc1Gu7KzupCv1
Threatray 1'487 similar samples on MalwareBazaar
TLSH 4DE402873E00F9B1C5689B38D6A1E250033F1D907FA1766EBCA5B5D736B36817B805AC
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://136.144.41.170/6.jpg

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://136.144.41.170/6.jpg https://threatfox.abuse.ch/ioc/89128/
http://136.144.41.170/1.jpg https://threatfox.abuse.ch/ioc/89138/
http://136.144.41.170/2.jpg https://threatfox.abuse.ch/ioc/89142/
http://136.144.41.170/3.jpg https://threatfox.abuse.ch/ioc/89147/
http://136.144.41.170/4.jpg https://threatfox.abuse.ch/ioc/89152/
http://136.144.41.170/5.jpg https://threatfox.abuse.ch/ioc/89156/
http://136.144.41.170/7.jpg https://threatfox.abuse.ch/ioc/89161/

Intelligence

File Origin
# of uploads :
3
# of downloads :
243
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IMG061730811.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-10 20:44:46 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e6fc1e11-df9a-4eba-829e-8216d794013e

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/165965/
Detection(s):
SecuriteInfo.com.Artemis3B014082A0EB.862.9705.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
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:
Oski Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/800513
Signature
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)
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 Costura Assembly Loader
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 432909 Sample: IMG061730811.exe Startdate: 10/06/2021 Architecture: WINDOWS Score: 96 43 Found malware configuration 2->43 45 Yara detected Oski Stealer 2->45 47 Yara detected Vidar stealer 2->47 49 5 other signatures 2->49 8 IMG061730811.exe 9 2->8         started        process3 file4 27 C:\Users\user\AppData\Roaming\...\notpad.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\...\IMG061730811.exe, PE32 8->29 dropped 31 C:\Users\...\IMG061730811.exe:Zone.Identifier, ASCII 8->31 dropped 51 Creates an undocumented autostart registry key 8->51 12 IMG061730811.exe 193 8->12         started        17 IMG061730811.exe 8->17         started        19 IMG061730811.exe 8->19         started        signatures5 process6 dnsIp7 41 136.144.41.170, 49745, 80 WORLDSTREAMNL Netherlands 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 53 Tries to harvest and steal browser information (history, passwords, etc) 12->53 55 Tries to steal Crypto Currency Wallets 12->55 21 cmd.exe 1 12->21         started        file8 signatures9 process10 process11 23 taskkill.exe 1 21->23         started        25 conhost.exe 21->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0d0e571bf5bc85d8685228a91bc7e4d087df034ee1a089e24b57057e5767b9c4/
Threat name:
ByteCode-MSIL.Trojan.Oskistealer
Create hunting rule
Status:
Malicious
First seen:
2021-06-10 20:41:08 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=buhfog7vxsc5q2csfcurxr7e2cd56a2o4gqityslk4cx4v3hxhca._file
Verdict:
suspicious
Similar samples:
033dd7d02172855d2e61e1dcfae24bdeb9136310503e06bf7079ef78db9422ae
OskiStealer
0c38c10261c2ae14822b19d1ebc54ad4ab417961b5f324716bb85a2038e3bb15
OskiStealer
1553300557f17e7cb62c914616267bc733854b98a0edc5215d901cc4f8e4d0f0
OskiStealer
1860347130f68ba0d084750816ca0fc532b8647d89e36ff53c0355e73a46d332
OskiStealer
682be0853ccd6f60deb69d27941a628758c4e13e7d2e6ee95a95f415f3a9f0c6
OskiStealer
916bd03b40de6bfa498311e3a70d3e98c50e8255fd413d446daab77951224856
OskiStealer
c09ced50c5dacaf28676dfaa0abff8f4b53fb4516c93fa5acd000e481841dd7b
OskiStealer
c41aa6d6eeac57851b0a00a619609ed764072881b85b7dad25ac30f2856eda43
OskiStealer
dfe493ec90b4d3114618d81d5d222b6919317387445c21bf58e3ca4b26300aef
OskiStealer
ed9d96725b88ce0a3caee6d98c11369fb84a1d7eca3847db66abe63c49955f73
OskiStealer
+ 1'477 additional samples on MalwareBazaar
Result
Malware family:
oski
Create hunting rule
Score:
  10/10
Tags:
family:oski discovery infostealer spyware stealer
Link:
https://tria.ge/reports/210610-mff536ztej/
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:
136.144.41.170
Unpacked files
SH256 hash:
01834ffd7611182908470762bb7cf0ea1ab9413f5ce1855620b63bb4ad14888f
MD5 hash:
97cef781878146a2da7a032a4ba8cb66
SHA1 hash:
d16119b0b82d7d1577c691aaaf59c029c7628a21
Link:
https://www.unpac.me/results/b50fe3d1-f798-42e0-99b5-986f0c60488f/
SH256 hash:
8e681505a348efeb18acd26dc5a7b05c1798c5f094d6afd858682612c8ff0d44
MD5 hash:
0e15e161070b78348c7aa95e02a5aadd
SHA1 hash:
876e446a2d2609d133a20607a3ec6d2d59111778
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/b50fe3d1-f798-42e0-99b5-986f0c60488f/
SH256 hash:
df910f6835af6ea7ea9c8d030d1e02212dba7e2240eda45e45ad31ec07d0e44c
MD5 hash:
3164cfc3aec9fb9a74efb549beaa7726
SHA1 hash:
0f04404fe27413a3ae59ede86d65a81de0bcea90
Link:
https://www.unpac.me/results/b50fe3d1-f798-42e0-99b5-986f0c60488f/
SH256 hash:
0d0e571bf5bc85d8685228a91bc7e4d087df034ee1a089e24b57057e5767b9c4
MD5 hash:
3b014082a0ebcbc1d47ced56f1404aab
SHA1 hash:
e9160714ad08b206204d647a245f89e73459e8b7
Link:
https://www.unpac.me/results/b50fe3d1-f798-42e0-99b5-986f0c60488f/
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/0d0e571bf5bc85d8685228a91bc7e4d087df034ee1a089e24b57057e5767b9c4

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_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
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:pe_imphash
Create hunting rule
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 0d0e571bf5bc85d8685228a91bc7e4d087df034ee1a089e24b57057e5767b9c4

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/165965/
  
URLhaus
https://urlhaus.abuse.ch/url/1352642/
  
Delivery method
Distributed via web download

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