MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2cae0a64b76d1b84ce33c33662c78c6f02dc97eb3add794532e4f5785be4242. 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


CoinMiner


Vendor detections: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2cae0a64b76d1b84ce33c33662c78c6f02dc97eb3add794532e4f5785be4242
SHA3-384 hash: 0b1f2b2b38607431a4dfd6a99e6a8456a9e8a184840cf03b35ca505df6f61980d8ff4e1e1c7b5f8e549bc21fb9e10d59
SHA1 hash: 257a414508ee02bd9e90584dbcf253babbae4574
MD5 hash: 3aa46c9675040d32beabf22fdc3afbb7
humanhash: lion-glucose-earth-hot
File name:file
Download: download sample
Signature CoinMiner
Create hunting rule
File size:188'928 bytes
First seen:2022-11-15 06:04:50 UTC
Last seen:2022-11-15 07:39:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash d24535d6f8c9f542b87ccfe280ca0ce9 (6 x Amadey, 6 x RedLineStealer, 3 x CoinMiner)
ssdeep 3072:bnbx3Ve5SWE8z1UFbbrOLWgBxAGZbdH46a3LZfuI6vR:B3C1z10D4WgHbdH46a3LZfV6v
Threatray 1'191 similar samples on MalwareBazaar
TLSH T1E204BE237B40D033C00695795925E2F1262AFC3EEA6BDB8777947B2E6E323C17616643
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e0d8c8c8e0e4a099 (12 x Smoke Loader, 7 x RedLineStealer, 7 x Amadey)
Reporter andretavare5
Tags:CoinMiner exe


Avatar
andretavare5
Sample downloaded from http://176.113.115.153:9080/13.php

Intelligence

File Origin
# of uploads :
6
# of downloads :
208
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
tofsee
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-11-15 06:06:35 UTC
Tags:
tofsee trojan miner phishing
Link:
https://app.any.run/tasks/1680b32d-8151-461f-bb5f-a12e156aca7d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Tofsee
Create hunting rule
Link:
https://www.capesandbox.com/analysis/334074/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.5961.17820.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Moving a file to the Windows subdirectory
Creating a service
Launching the process to change the firewall settings
Launching a service
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Searching for synchronization primitives
Forced system process termination
DNS request
Sending a custom TCP request
Creating a file in the Windows subdirectories
Connecting to a cryptocurrency mining pool
Sending an HTTP GET request
Possible injection to a system process
Enabling autorun for a service
Unauthorized injection to a system process
Adding exclusions to Windows Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm greyware packed
Link:
https://www.filescan.io/uploads/63732c104dc24c6f80b819d8/reports/18a5a599-1bfa-4034-8b47-34a168de7580/overview
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:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cdbec3cf-f390-4df8-b8cb-3bb747faa315
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1113510
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Found API chain indicative of debugger detection
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Query firmware table information (likely to detect VMs)
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Tofsee
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 746206 Sample: file.exe Startdate: 15/11/2022 Architecture: WINDOWS Score: 100 51 microsoft-com.mail.protection.outlook.com 2->51 57 Snort IDS alert for network traffic 2->57 59 Multi AV Scanner detection for domain / URL 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 6 other signatures 2->63 8 ozvarkwl.exe 2->8         started        11 file.exe 2 2->11         started        14 svchost.exe 2->14         started        16 8 other processes 2->16 signatures3 process4 file5 71 Detected unpacking (changes PE section rights) 8->71 73 Detected unpacking (overwrites its own PE header) 8->73 75 Writes to foreign memory regions 8->75 85 2 other signatures 8->85 18 svchost.exe 1 8->18         started        49 C:\Users\user\AppData\Local\...\ozvarkwl.exe, PE32 11->49 dropped 77 Uses netsh to modify the Windows network and firewall settings 11->77 79 Modifies the windows firewall 11->79 22 cmd.exe 1 11->22         started        25 netsh.exe 3 11->25         started        27 cmd.exe 2 11->27         started        31 3 other processes 11->31 81 Changes security center settings (notifications, updates, antivirus, firewall) 14->81 29 MpCmdRun.exe 1 14->29         started        83 Query firmware table information (likely to detect VMs) 16->83 signatures6 process7 dnsIp8 53 svartalfheim.top 95.213.216.214, 443, 49694, 49702 SELECTELRU Russian Federation 18->53 55 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49691 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->55 65 System process connects to network (likely due to code injection or exploit) 18->65 67 Found API chain indicative of debugger detection 18->67 69 Deletes itself after installation 18->69 47 C:\Windows\SysWOW64\...\ozvarkwl.exe (copy), PE32 22->47 dropped 33 conhost.exe 22->33         started        35 conhost.exe 25->35         started        37 conhost.exe 27->37         started        39 conhost.exe 29->39         started        41 conhost.exe 31->41         started        43 conhost.exe 31->43         started        45 conhost.exe 31->45         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2cae0a64b76d1b84ce33c33662c78c6f02dc97eb3add794532e4f5785be4242/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2022-11-15 06:05:07 UTC
File Type:
PE (Exe)
Extracted files:
33
AV detection:
31 of 40 (77.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ulfobjslo3i3qthdhqzwmldyy3yc3sl6wow5pfctfzhvpbn6ijba._file
Verdict:
malicious
Similar samples:
08b7fd4bd56c90d7bbf5f1d633da68fd062d90d2088ee539c9485974f6c9286a
CoinMiner
0a90ec480897c77b65c1f77aee6da2f49ae0cf15e15db8a6d3fbd2299435e699
CoinMiner
415a12f2bb948deabc96a5e58bcaba8ff95d49a0c78335ae35f1beaa74f4574f
CoinMiner
6891d6cb28be52452e68d111ac139155db94c9c5cbc051148efccc889d0ecfca
CoinMiner
69e90ecef55e6783392a809e9dd86896acce3eedfc0f9d5e4437b611e0f99d4e
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7708d1fc3aed47df6bcc75a4498f743c4266e4ee437b123f42d230582bf9fc39
CoinMiner
7c93da27889c7fb399eb8a22499956010982d10b07af2c292ff624877acfa05e
CoinMiner
9a1c17c1df5af22751cb7df878943133a5f5eed7081e54c66babbec15beb9583
CoinMiner
9e4d8fc874dacd8205ee5b327316005ea85cf2a809444fdac25e05f0f80d7673
CoinMiner
c7f1b3e1032d20a012c5a755c199424d5bc407732f5e56fd523065fb3ded2fd1
CoinMiner
+ 1'181 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/221115-gs6vjafb67/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Creates new service(s)
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
XMRig Miner payload
Tofsee
Windows security bypass
xmrig
Malware Config
C2 Extraction:
svartalfheim.top
jotunheim.name
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/24196ee8-c04b-44b3-8325-1a23e01b57f0
Unpacked files
SH256 hash:
a2cae0a64b76d1b84ce33c33662c78c6f02dc97eb3add794532e4f5785be4242
MD5 hash:
3aa46c9675040d32beabf22fdc3afbb7
SHA1 hash:
257a414508ee02bd9e90584dbcf253babbae4574
Link:
https://www.unpac.me/results/f4733d26-81d6-49cb-af8d-54a1c92ac1dd/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a2cae0a64b76/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a2cae0a64b76d1b84ce33c33662c78c6f02dc97eb3add794532e4f5785be4242

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:MALWARE_Win_Tofsee
Create hunting rule
Author:ditekSHen
Description:Detects Tofsee
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:tofsee_yhub
Create hunting rule
Author:Billy Austin
Description:Detects Tofsee botnet, also known as Gheg
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Tofsee_26124fe4
Create hunting rule
Author:Elastic Security
Rule name:win_tofsee_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.tofsee.
Rule name:win_tofsee_w0
Create hunting rule
Author:akrasuski1

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
Cape
Cape
https://www.capesandbox.com/analysis/334074/

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