MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289. 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 YARA 3 File information Comments
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SHA256 hash: 06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289
SHA3-384 hash: b6ddda36c6c0922490c7a8e82b03cbc7e499501deddb13f94e065cbd4c3eef57ef9811d6c56c8803820bab08fb548ca3
SHA1 hash: 23c8c1a1a8d16180980f4b38a47832738f947141
MD5 hash: 7f05dc92a62ddd277baaeb55ebcfa407
humanhash: network-item-vermont-lactose
File name:NEW ORDER_78947533.EXE
Download: download sample
Signature OskiStealer
Create hunting rule
File size:902'656 bytes
First seen:2021-08-10 12:12:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:oplvxon3qGaNHEyC9/oR9gy5ZHK7z1S6TNCTm9H1tVwH9gd0pod3zBts7Vl+YJtm:dPp9AR95SbTIg1Bd4od0+YzR0xz6KV
Threatray 2'438 similar samples on MalwareBazaar
TLSH T13515010733806763C459AF3B5CD9A3A24279EED5CBA1E99D38823A3E0DF6B418D41753
Reporter cocaman
Tags:exe OskiStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NEW ORDER_78947533.EXE
Verdict:
Malicious activity
Analysis date:
2021-08-10 12:17:41 UTC
Tags:
trojan stealer vidar loader phishing
Link:
https://app.any.run/tasks/7f0cd930-e061-4caf-b22c-7d99880ba7f1

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/177906/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.2343.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Deleting a recently created file
Replacing files
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.
Malware family:
Oski Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4ba64f93-a460-4ffa-99d1-45f82deeb7b3
Result
Threat name:
Oski Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/830120
Signature
Downloads files with wrong headers with respect to MIME Content-Type
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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: 462551 Sample: NEW ORDER_78947533.EXE Startdate: 10/08/2021 Architecture: WINDOWS Score: 100 37 Multi AV Scanner detection for domain / URL 2->37 39 Found malware configuration 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 9 other signatures 2->43 8 NEW ORDER_78947533.EXE 3 2->8         started        process3 file4 25 C:\Users\user\...25EW ORDER_78947533.EXE.log, ASCII 8->25 dropped 45 Injects a PE file into a foreign processes 8->45 12 NEW ORDER_78947533.EXE 193 8->12         started        17 NEW ORDER_78947533.EXE 8->17         started        signatures5 process6 dnsIp7 35 kckark.xyz 104.21.44.205, 49757, 80 CLOUDFLARENETUS United States 12->35 27 C:\ProgramData\vcruntime140.dll, PE32 12->27 dropped 29 C:\ProgramData\sqlite3.dll, PE32 12->29 dropped 31 C:\ProgramData\softokn3.dll, PE32 12->31 dropped 33 4 other files (none is malicious) 12->33 dropped 47 Tries to harvest and steal browser information (history, passwords, etc) 12->47 49 Tries to steal Crypto Currency Wallets 12->49 19 cmd.exe 1 12->19         started        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/06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-08-10 12:13:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=a3ekdzsujlw6gj522mvfomwvxt77cq62opnadu2jhdx35el6gkeq._file
Verdict:
malicious
Similar samples:
223dfd54929007ac23d6a20dbcf81a519a14f1c4061d23afcb761b75796042d2
OskiStealer
43460a1724b2521dd5e97c68c16edfce9caf22d49452efd956a64db91b5935a7
OskiStealer
436651743894169dc9cd4c7ef01734420a5ce2d6dcaf57825197e0c756feeee9
OskiStealer
44aa270e4c081241057bad8c1d0ea5864087325f8e3209aa10747f108123f718
OskiStealer
60d1297adb502d942493a794945336aea891d2c321476ef3349ac07726fca7c3
OskiStealer
69f41c2c444cd2147188d547c5edd6a4a8e2f238df52e1709dc7bb1066232ecc
OskiStealer
e5cfbeb6e53527b724d1a710c44dd7f86a0befadb35db2c81ee1ec9aafd12b40
OskiStealer
+ 2'428 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/210810-h5b7z52nnn/
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:
kckark.xyz
Unpacked files
SH256 hash:
f627dc3b869d2e6cdbae8384fd2a8b6a0f09a678dc95306f38f32614be6d6856
MD5 hash:
192515ef7d44c00aebbc7e4802c43a86
SHA1 hash:
6fb2671bb37fc9e7cd49e564be88dd92ef956acf
Detections:
win_oski_g0
Create hunting rule
win_oski_auto
Create hunting rule
Link:
https://www.unpac.me/results/59259202-96cc-48f8-a3a2-a9b080793a92/
Parent samples :
242acd2bd4415b211de8afd058570aac478e1c257d31e908a2823b8fb3788ede
06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289
fd16c60e634e807f6bbb7c3e6e12a4231b7b34851eb98d6da2f178b6125c536f
f5abfba489bfcef9819f0ca20cd54efc779d6091f6462b6083c363636739f41b
SH256 hash:
ed0dd1e2260da7b03c8b80e0b45e8fef44be722c1e8c41e078c1a25ed0d18ecc
MD5 hash:
6057ce35bd926dd6d49dedfa9cc18372
SHA1 hash:
1f4e44e1740ffbd91129ac3a37d22845bc52c158
Link:
https://www.unpac.me/results/59259202-96cc-48f8-a3a2-a9b080793a92/
SH256 hash:
d2daf1bbc009df94b6c37e1c810e5f4024da0e7063e8867ec55b7e39b86843ac
MD5 hash:
8af5117e7b664dc50f4a58ef31bef265
SHA1 hash:
0385988b1e45ff96efc8bf3596d585dc3e4d02b3
Link:
https://www.unpac.me/results/59259202-96cc-48f8-a3a2-a9b080793a92/
SH256 hash:
06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289
MD5 hash:
7f05dc92a62ddd277baaeb55ebcfa407
SHA1 hash:
23c8c1a1a8d16180980f4b38a47832738f947141
Link:
https://www.unpac.me/results/59259202-96cc-48f8-a3a2-a9b080793a92/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/06c8a1e6544a/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/06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289

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.

Malspam

OskiStealer

iso e38286df473bf02a6fad93aa93a5fbd283faca53a5b52157955cce229a1dc1a0

OskiStealer

Executable exe 06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 e38286df473bf02a6fad93aa93a5fbd283faca53a5b52157955cce229a1dc1a0
Cape
Cape
https://www.capesandbox.com/analysis/177906/

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