MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2013616892886b9fcd2067d2e77436c5233653772f6a6f235a325b1122c34a9. 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: 12


Intelligence 12 IOCs 7 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2013616892886b9fcd2067d2e77436c5233653772f6a6f235a325b1122c34a9
SHA3-384 hash: f0e4499590b3cdc30e803f57951577c47a0e48981f12669125705da3cbebfe2c78e86d3f335eba5bc2f31fe0bf3635a7
SHA1 hash: 7f7f55ef05410e17329dd3fb3c26e325f227592a
MD5 hash: b43ae45b39a0647231b51c2d438a554e
humanhash: butter-cat-twenty-october
File name:DHL DOCS.exe
Download: download sample
Signature OskiStealer
Create hunting rule
File size:712'704 bytes
First seen:2021-08-17 10:16:23 UTC
Last seen:2021-08-17 10:47:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:g9bDKZtBLE5x4T7RejE+BAdB1JLsSe/RXz/ZwgQiXG/IPQQ0pvRCph5kz1200CZ:EgLE5uTdejkRe/11wm21
Threatray 2'612 similar samples on MalwareBazaar
TLSH T183E46B6D3150B9AFD137CD36C4580E14F660A8A7E3CBC613E0932959983D7AA9E443BF
Reporter abuse_ch
Tags:exe OskiStealer


Avatar
abuse_ch
OskiStealer C2:
http://zdd.divendesign.in/6.jpg

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://zdd.divendesign.in/6.jpg https://threatfox.abuse.ch/ioc/191136/
http://zdd.divendesign.in/1.jpg https://threatfox.abuse.ch/ioc/191137/
http://zdd.divendesign.in/2.jpg https://threatfox.abuse.ch/ioc/191138/
http://zdd.divendesign.in/3.jpg https://threatfox.abuse.ch/ioc/191139/
http://zdd.divendesign.in/4.jpg https://threatfox.abuse.ch/ioc/191140/
http://zdd.divendesign.in/5.jpg https://threatfox.abuse.ch/ioc/191141/
http://zdd.divendesign.in/7.jpg https://threatfox.abuse.ch/ioc/191142/

Intelligence

File Origin
# of uploads :
2
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL DOCS.exe
Verdict:
Malicious activity
Analysis date:
2021-08-17 10:18:41 UTC
Tags:
trojan stealer vidar
Link:
https://app.any.run/tasks/e215cf00-0d93-4f86-87f6-a9e050fdf545

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/179934/
Detection(s):
SecuriteInfo.com.Variant.Bulz.598676.22385.21862.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
DNS request
Connecting to a non-recommended domain
Connection attempt
Deleting a recently created file
Reading critical registry keys
Replacing files
Delayed writing of the file
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for the window
Stealing user critical data
Launching a tool to kill processes
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a2467c76-8832-4b36-8748-ba52822603da
Result
Threat name:
Oski Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/834256
Signature
Antivirus detection for URL or domain
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 sample
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 Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 466687 Sample: DHL DOCS.exe Startdate: 17/08/2021 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Antivirus detection for URL or domain 2->37 39 Yara detected Oski Stealer 2->39 41 7 other signatures 2->41 8 DHL DOCS.exe 3 2->8         started        process3 file4 23 C:\Users\user\AppData\...\DHL DOCS.exe.log, ASCII 8->23 dropped 43 Injects a PE file into a foreign processes 8->43 12 DHL DOCS.exe 193 8->12         started        signatures5 process6 dnsIp7 33 zdd.divendesign.in 142.4.7.91, 49737, 49739, 80 UNIFIEDLAYER-AS-1US United States 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/a2013616892886b9fcd2067d2e77436c5233653772f6a6f235a325b1122c34a9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-17 10:17:10 UTC
AV detection:
16 of 46 (34.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uiatmfujfcdlt7gsaz6s452dnrjdgzjxol3kn4rvums3cermgsuq._file
Verdict:
malicious
Similar samples:
06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289
OskiStealer
10410848d808e42758883ff2045ac5b10d16ad3d4155771483f0aba1f245a6e4
OskiStealer
223dfd54929007ac23d6a20dbcf81a519a14f1c4061d23afcb761b75796042d2
OskiStealer
42c682af79cf1b73127ebf00349a8c4cabccdf42d2e14f77cda67121f870d8bf
OskiStealer
43460a1724b2521dd5e97c68c16edfce9caf22d49452efd956a64db91b5935a7
OskiStealer
44aa270e4c081241057bad8c1d0ea5864087325f8e3209aa10747f108123f718
OskiStealer
60d1297adb502d942493a794945336aea891d2c321476ef3349ac07726fca7c3
OskiStealer
a03b45dabcaf812402454befd876b2eafbdf9e967f3bb01e66f33f3cabbdebd5
OskiStealer
c254079e9a75cb708e28deb9c72c77689c53425f8256338343c06285bed8ebbe
OskiStealer
+ 2'602 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/210817-2eedsh5p3e/
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
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Malware Config
C2 Extraction:
zdd.divendesign.in
Unpacked files
SH256 hash:
c362729899c5956cfa9fc3bcf9b21ac72066a1b84a497ceb1281f76e2f55c54b
MD5 hash:
0327d1374a5ce015ad9c83c5de76e823
SHA1 hash:
e521349d9e96a4191248747c42c78b6f88fc8f63
Link:
https://www.unpac.me/results/37226e00-eaa3-46b3-a400-2700975399c3/
SH256 hash:
e323380042d101950174f5ef1d807e8883a97515a36e8ca90f9d7e45d05d09b5
MD5 hash:
842ca1795ba91e4f7c0a2dd003b7d177
SHA1 hash:
9b1749f1b816a5f25a027e098d31cc2eaf90fdf7
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/37226e00-eaa3-46b3-a400-2700975399c3/
SH256 hash:
487fdcbbb0743fb488fdac3617bd7af9094e5125db8da48796fee817168668a1
MD5 hash:
fff7e448f4884bbd11cd28742a85221e
SHA1 hash:
0e46a44d1763881322264b0b1f1a248cbf1d2b42
Link:
https://www.unpac.me/results/37226e00-eaa3-46b3-a400-2700975399c3/
SH256 hash:
a2013616892886b9fcd2067d2e77436c5233653772f6a6f235a325b1122c34a9
MD5 hash:
b43ae45b39a0647231b51c2d438a554e
SHA1 hash:
7f7f55ef05410e17329dd3fb3c26e325f227592a
Link:
https://www.unpac.me/results/37226e00-eaa3-46b3-a400-2700975399c3/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a20136168928/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/a2013616892886b9fcd2067d2e77436c5233653772f6a6f235a325b1122c34a9

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/179934/

Comments