MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 81dbad520f8f4d8163e02d7b01866918e8392bb549df2cb73f1b8148f6fd5b51. 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
MarsStealer
Vendor detections: 10
| SHA256 hash: | 81dbad520f8f4d8163e02d7b01866918e8392bb549df2cb73f1b8148f6fd5b51 |
|---|---|
| SHA3-384 hash: | 8396f91c107547e049ad9b0c7c165ff9d4a146c98a5ccc5355fe7c5a6fb9306a6c82b17563d8dbf5acacb66db71df683 |
| SHA1 hash: | b2dc4cda58699708a4ebfd31d2a7f5828718f1bc |
| MD5 hash: | c9bf7a5c92aef719f5f04eb70898b443 |
| humanhash: | utah-cat-fanta-vermont |
| File name: | Doctors_Recommendation.scr |
| Download: | download sample |
| Signature | MarsStealer |
| File size: | 3'146'096 bytes |
| First seen: | 2023-11-10 08:00:15 UTC |
| Last seen: | 2023-11-10 09:18:37 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | d70ea46027876c77926b7954dbffb9fa (1 x MarsStealer) |
| ssdeep | 24576:Ku9FGdK/Ho7S+P6/i1iJq3TXC92REo4Q7hvgL:KZdKOS8sw8GRESFK |
| Threatray | 41 similar samples on MalwareBazaar |
| TLSH | T1A9E5BF35A1618032E7F20173A928A135FE2CE51C37149A5EA2FCED1D79B8092E7F7617 |
| TrID | 40.3% (.EXE) Win64 Executable (generic) (10523/12/4) 19.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.2% (.EXE) Win32 Executable (generic) (4505/5/1) 7.7% (.EXE) OS/2 Executable (generic) (2029/13) 7.6% (.EXE) Generic Win/DOS Executable (2002/3) |
| File icon (PE): |  |
| dhash icon | 74e4d4d4ecf4d4d4 (23 x GuLoader, 20 x LummaStealer, 19 x AgentTesla) |
| Reporter |  JAMESWT_WT |
| Tags: | bookinggoogledrive exe MarsStealer VidarStealer |
Intelligence
File Origin
# of uploads :
2
# of downloads :
323
Origin country :
ITVendor Threat Intelligence
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a file
Reading critical registry keys
Changing a file
Creating a file in the %AppData% subdirectories
Creating a window
Stealing user critical data
Gathering data
Verdict:
Malicious
Threat level:
10/10
Confidence:
90%
Tags:
CAB control crypto expand greyware installer lolbin masquerade overlay packed runonce shell32
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:
Stealc
Verdict:
Malicious
Result
Threat name:
Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Uses known network protocols on non-standard ports
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Score:
0%
Verdict:
Benign
File Type:
PE
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 31 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks installed software on the system
Checks computer location settings
Deletes itself
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Unpacked files
SH256 hash:
80cbfb2da5d85d600462eb3e4afc50657cf9ab62e2c46958a054e7e3238c5fca
MD5 hash:
cf20b738c740262406eb6928bb908de0
SHA1 hash:
627e1e6b76525c596a3b371d9156d943fa2f7810
SH256 hash:
81dbad520f8f4d8163e02d7b01866918e8392bb549df2cb73f1b8148f6fd5b51
MD5 hash:
c9bf7a5c92aef719f5f04eb70898b443
SHA1 hash:
b2dc4cda58699708a4ebfd31d2a7f5828718f1bc
Malware family:
Stealc
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| Rule name: | Check_Dlls |
|---|
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | detect_Mars_Stealer |
|---|---|
| Author: | @malgamy12 |
| Description: | detect_Mars_Stealer |
| Rule name: | has_telegram_urls |
|---|---|
| Author: | Aaron DeVera<aaron@backchannel.re> |
| Description: | Detects Telegram URLs |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows executables referencing non-Windows User-Agents |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL |
|---|---|
| Author: | ditekSHen |
| Description: | Detects binaries and memory artifcats referencing sandbox DLLs typically observed in sandbox evasion |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | malware_shellcode_hash |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect shellcode api hash value |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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