MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a34e7c63da647c394b8becde55d6e87bc34e2c934c89b7f23484747a3598fb4c. 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: 13
| SHA256 hash: | a34e7c63da647c394b8becde55d6e87bc34e2c934c89b7f23484747a3598fb4c |
|---|---|
| SHA3-384 hash: | 40d3dd17c446d163a796ec20c2679dd689c43d5eb1a9b225c555c12090b79a182694a0361f41d24b92f4226e5aaf5952 |
| SHA1 hash: | ab5e4e82d68462daec9ff1dc0fa81380d8991df0 |
| MD5 hash: | 4d838fd7586e75e908483b1807bc29a6 |
| humanhash: | arkansas-twelve-potato-one |
| File name: | Proposal For Adamallys Group..exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 749'568 bytes |
| First seen: | 2021-08-11 13:19:17 UTC |
| Last seen: | 2021-08-11 14:47:17 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 12288:qQE4Ud4N5tA2P9qRLOhdKeE2gawV77yQ0wc0HK7zVRAtep79CqX8QXTfFteLSgQ3:T0Khd9g10wy51xCqXn3eWn+kGk85Upvj |
| Threatray | 2'457 similar samples on MalwareBazaar |
| TLSH | T1F9F4F13137986B61F07E977A8170104243F6E496EB23DA8EBD9910DA1E67F81C673B13 |
| Reporter |  GovCERT_CH |
| Tags: | exe OskiStealer |
Intelligence
File Origin
# of uploads :
3
# of downloads :
150
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Proposal For Adamallys Group..exe
Verdict:
Malicious activity
Analysis date:
2021-08-11 13:22:41 UTC
Tags:
trojan stealer vidar phishing loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Vidar
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
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:
Generic Malware
Verdict:
Malicious
Result
Threat name:
Oski Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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)
Injects a PE file into a foreign processes
Machine Learning detection for sample
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:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-08-09 23:33:33 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 2'447 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer suricata
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
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Malware Config
C2 Extraction:
cabvui.xyz
Unpacked files
SH256 hash:
ed0dd1e2260da7b03c8b80e0b45e8fef44be722c1e8c41e078c1a25ed0d18ecc
MD5 hash:
6057ce35bd926dd6d49dedfa9cc18372
SHA1 hash:
1f4e44e1740ffbd91129ac3a37d22845bc52c158
SH256 hash:
8f9aba0d7dc6ed782b7ee43b97be3e9ee1280d42ada3a8fb773d9b1bf47701e1
MD5 hash:
052c7954f4bdde766a62af6f2c76782b
SHA1 hash:
10d824c892645ffd5e71ebd0c9b262ccf2677de8
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
19c7a6a1835ecf9be66a50f5c9d250d07c7746a7171fbd8b6c92230c4138ce1b
MD5 hash:
e7768168669af9cd12ce605cd75b77ad
SHA1 hash:
0353c305be784e8ed54353ab24bd47946eafdd96
SH256 hash:
a34e7c63da647c394b8becde55d6e87bc34e2c934c89b7f23484747a3598fb4c
MD5 hash:
4d838fd7586e75e908483b1807bc29a6
SHA1 hash:
ab5e4e82d68462daec9ff1dc0fa81380d8991df0
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: | 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
Dropped by
null
Delivery method
Distributed via e-mail attachment
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