MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8bf1319fd0f77cd38f85d436e044f2d9e93e3f33844f20737117230b73b60f6c. 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
Kovter
Vendor detections: 15
| SHA256 hash: | 8bf1319fd0f77cd38f85d436e044f2d9e93e3f33844f20737117230b73b60f6c |
|---|---|
| SHA3-384 hash: | 4e03becb60fb2267fdf59bfda430f120f5d3da7013af2fef0a9a2e658fa6362500bad839eb1b2d23e42d73c684197ecf |
| SHA1 hash: | bb90bed3b0d747feeac32536d75c6d153b34be0b |
| MD5 hash: | acd46f88a6f90143090c342c10544ccf |
| humanhash: | helium-island-fifteen-uranus |
| File name: | 2023-02-14_acd46f88a6f90143090c342c10544ccf_kovter |
| Download: | download sample |
| Signature | Kovter |
| File size: | 3'438'608 bytes |
| First seen: | 2023-02-14 04:57:20 UTC |
| Last seen: | 2023-02-15 05:19:22 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger) |
| ssdeep | 24576:v54IAnWrfdt2Zj1vpo4ajyKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKI:CIAWjdAp1PagjLuSh3i+FtvkMzT+ |
| Threatray | 9 similar samples on MalwareBazaar |
| TLSH | T136F54A157784CD26C07E07F54863D2946231FCA39E2346AB35F0B72EFDF56804DA2AA9 |
| TrID | 36.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 21.2% (.EXE) InstallShield setup (43053/19/16) 20.5% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9) 5.1% (.EXE) Win64 Executable (generic) (10523/12/4) 4.9% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2) |
| dhash icon | 6261c0e0689edecc (1 x RedLineStealer, 1 x Kovter) |
| Reporter |  petikvx |
| Tags: | Kovter |
Intelligence
File Origin
# of uploads :
4
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2023-02-14_acd46f88a6f90143090c342c10544ccf_kovter
Verdict:
Malicious activity
Analysis date:
2023-02-14 04:59:31 UTC
Tags:
installer ransomware stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Kovter
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creating a window
Сreating synchronization primitives
Creating a file
Reading critical registry keys
Sending a custom TCP request
Changing a file
Stealing user critical data
Encrypting user's files
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
datper greyware overlay packed shell32.dll
Verdict:
Malicious
Labled as:
Trojan.Generic
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:
Kovter
Verdict:
Malicious
Result
Threat name:
Conti, DBatLoader, Jcrypt, NominatusCryp
Detection:
malicious
Classification:
rans.troj
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Deletes shadow drive data (may be related to ransomware)
Found potential ransomware demand text
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Writes many files with high entropy
Yara detected Conti ransomware
Yara detected DBatLoader
Yara detected Jcrypt Ransomware
Yara detected NominatusCrypto Ransomware
Yara detected TrojanRansom
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Ransomware.CryptoLock
Status:
Malicious
First seen:
2023-02-01 15:26:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
673
AV detection:
25 of 26 (96.15%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
Result
Malware family:
modiloader
Score:
10/10
Tags:
family:mafiaware666 family:modiloader ransomware
Behaviour
Drops file in Program Files directory
Drops desktop.ini file(s)
Modifies extensions of user files
Detect MafiaWare666 ransomware
MafiaWare666 Ransomware
Unpacked files
SH256 hash:
8bf1319fd0f77cd38f85d436e044f2d9e93e3f33844f20737117230b73b60f6c
MD5 hash:
acd46f88a6f90143090c342c10544ccf
SHA1 hash:
bb90bed3b0d747feeac32536d75c6d153b34be0b
Detections:
win_kovter_g0
NominatusStormPEOverwriter
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
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: | aPLib_decompression |
|---|---|
| Author: | @r3c0nst |
| Description: | Detects aPLib decompression code often used in malware |
| Reference: | https://ibsensoftware.com/files/aPLib-1.1.1.zip |
| Rule name: | grakate_stealer_nov_2021 |
|---|
| Rule name: | INDICATOR_SUSPICIOUS_GENRansomware |
|---|---|
| Author: | ditekSHen |
| Description: | detects command variations typically used by ransomware |
| Rule name: | Kovter |
|---|---|
| Author: | kevoreilly |
| Description: | Kovter Payload |
| Rule name: | meth_peb_parsing |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
| Rule name: | pe_imphash |
|---|
| Rule name: | QbotStuff |
|---|---|
| Author: | anonymous |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | tick_Datper |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Datper in memory |
| Reference: | https://blogs.jpcert.or.jp/en/2017/08/detecting-datper-malware-from-proxy-logs.html |
| Rule name: | Win32_Ransomware_Kovter |
|---|---|
| Author: | ReversingLabs |
| Description: | Yara rule that detects Kovter ransomware. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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