MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b1d3c9d99b280d0b6c75efbf271254f8081cf947b77d51ff8fa9fa67e61e6513. 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: 14
| SHA256 hash: | b1d3c9d99b280d0b6c75efbf271254f8081cf947b77d51ff8fa9fa67e61e6513 |
|---|---|
| SHA3-384 hash: | c5204366a31a3529ccef10197f73c56468b2c6d379a319f4034ca237befb8f2470afb59ce772e6a8adeaa8ef60067576 |
| SHA1 hash: | 4eaf09cda6d4ce743b2aa5b274cb66b6a58f7f4f |
| MD5 hash: | 5be68e2fdd151ab51beb125c8796d3ac |
| humanhash: | sink-spaghetti-solar-double |
| File name: | Request For Qoutation and Company Profile for.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 852'392 bytes |
| First seen: | 2022-08-12 06:05:58 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:Z5u4vpc++Ng/2PRmnUeLZdy7JuJkOenSMZ1f4j+kB8kZ8:ZAepSNgdUeLos8SMYj+1l |
| TLSH | T13805AEAF7BCC840ACC104A31ED8881A85FA9AD923532EFEF79873D25F5303AD5519D46 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23) |
| File icon (PE): |  |
| dhash icon | 4d535373c9c4c229 (1 x OskiStealer) |
| Reporter |  abuse_ch |
| Tags: | exe OskiStealer |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| http://gconnect.pro/6.jpg | https://threatfox.abuse.ch/ioc/842676/ |
| http://gconnect.pro/1.jpg | https://threatfox.abuse.ch/ioc/842677/ |
| http://gconnect.pro/2.jpg | https://threatfox.abuse.ch/ioc/842678/ |
| http://gconnect.pro/3.jpg | https://threatfox.abuse.ch/ioc/842679/ |
| http://gconnect.pro/4.jpg | https://threatfox.abuse.ch/ioc/842680/ |
| http://gconnect.pro/5.jpg | https://threatfox.abuse.ch/ioc/842681/ |
| http://gconnect.pro/7.jpg | https://threatfox.abuse.ch/ioc/842682/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
288
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
vidar
ID:
1
File name:
Request For Qoutation and Company Profile for.exe
Verdict:
Malicious activity
Analysis date:
2022-08-12 06:08:07 UTC
Tags:
trojan stealer vidar loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file
Running batch commands
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
overlay packed
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:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Oski Stealer, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Downloads files with wrong headers with respect to MIME Content-Type
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Posts data to a JPG file (protocol mismatch)
Snort IDS alert for network traffic
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 Generic Downloader
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-08-12 06:06:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
89
AV detection:
19 of 26 (73.08%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Checks processor information in registry
Kills process with taskkill
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
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Malware Config
C2 Extraction:
gconnect.pro
Unpacked files
SH256 hash:
cd78724fc5cca0ce77efd4334768f0a8bb6d0c472634807a2f067abdc584af7e
MD5 hash:
fac8ccad82bf2af45a4ef96e6e4c995f
SHA1 hash:
cfae91c59cc5647172001950ab7f66b8febebec9
SH256 hash:
777da712cb95d3346244298844d6f90126d7ae78a1765f8f82bf83f1a980d8ed
MD5 hash:
c966e36939078648ba1b3fbea1b52170
SHA1 hash:
9d50788bf6ddaf9c01a6177c4cb6d3fb7cffc50f
SH256 hash:
18eb60c0eb3e1c610526d9f4b42684ac36a2ebb521514a8770dca2f2afd7f471
MD5 hash:
7ca239778f9f46d28b08876564dba525
SHA1 hash:
973b0d0d98a83b7dfcf1bfce04a179b0f070b98c
SH256 hash:
3e62aa7bc9453249221e0dc799996878505452229d456fcb7033deb2687a4307
MD5 hash:
af3abd261a667a6b4d083c7e4683fccc
SHA1 hash:
38d5810309c0fb50a623ed156378e2d55c934f41
Detections:
win_oski_g0
win_oski_auto
OskiStealer
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
SH256 hash:
b1d3c9d99b280d0b6c75efbf271254f8081cf947b77d51ff8fa9fa67e61e6513
MD5 hash:
5be68e2fdd151ab51beb125c8796d3ac
SHA1 hash:
4eaf09cda6d4ce743b2aa5b274cb66b6a58f7f4f
Malware family:
OskiStealer
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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_SUSPICIOUS_EXE_PE_ResourceTuner |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables with modified PE resources using the unpaid version of Resource Tuner |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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