MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4ee9983bc82214479876383c1caa6c1800df1d9d9bc733bf0be74150570b12d0. 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
| SHA256 hash: | 4ee9983bc82214479876383c1caa6c1800df1d9d9bc733bf0be74150570b12d0 |
|---|---|
| SHA3-384 hash: | 6edfd7f61134fc9e5ff733ab0513195c91fb301d34c2c6eea93a5d592e5a11ce66a830cd43e5ba5ae3aceba058122bc2 |
| SHA1 hash: | abb33d406fd631751f18b0fd39e53d56a2155831 |
| MD5 hash: | 5aac3cb09c8a86e0bd46bc9f5341afa2 |
| humanhash: | rugby-cola-mobile-india |
| File name: | INVOICE.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 142'848 bytes |
| First seen: | 2021-10-06 09:36:30 UTC |
| Last seen: | 2021-10-06 12:41:03 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 3072:5WrWhyEdhl4Mpoza4NRS0h0CTXYmvFMQ4b1Lf4:QjCriRS0hYmuQ4pf |
| Threatray | 476 similar samples on MalwareBazaar |
| TLSH | T135D35B42B798AB51D45816F0C0E3577403F7EA8B33B3D6853F8552E60E427E88E99BC9 |
| File icon (PE): |  |
| dhash icon | e884030dcedeb4e8 (52 x AgentTesla, 20 x Loki, 6 x Formbook) |
| Reporter |  GovCERT_CH |
| Tags: | exe OskiStealer |
Intelligence
File Origin
# of uploads :
3
# of downloads :
289
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICE.exe
Verdict:
Malicious activity
Analysis date:
2021-10-06 09:39:16 UTC
Tags:
n/a
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
Launching a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
obfuscated packed
Verdict:
Malicious
Result
Threat name:
Oski
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Yara detected Oski Stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Generic
Status:
Suspicious
First seen:
2021-10-06 01:19:08 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 466 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
n/a
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Downloads MZ/PE file
Unpacked files
SH256 hash:
4ee9983bc82214479876383c1caa6c1800df1d9d9bc733bf0be74150570b12d0
MD5 hash:
5aac3cb09c8a86e0bd46bc9f5341afa2
SHA1 hash:
abb33d406fd631751f18b0fd39e53d56a2155831
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.53
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_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | pe_imphash |
|---|
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
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