MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ce8363d05d1015ebd88250aad7c26b2ec0383b3e8a1634aec0cd86900f29324. 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


Tofsee


Vendor detections: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3ce8363d05d1015ebd88250aad7c26b2ec0383b3e8a1634aec0cd86900f29324
SHA3-384 hash: d8522be2fe53f9e16e1287b2c49aefc2cac6aaef726a5853830b47e6195e9101159aa94420c0bbab337226af59327638
SHA1 hash: 1dd0dbeaf19a6dfbd4f1e9294a3f9ed94e47d438
MD5 hash: c334c4a18ad3d9dea36f07b5b04696db
humanhash: glucose-hotel-salami-berlin
File name:c334c4a18ad3d9dea36f07b5b04696db.exe
Download: download sample
Signature Tofsee
Create hunting rule
File size:268'800 bytes
First seen:2022-05-12 07:30:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 18b697a0f0624fef499c9d8294973dde (11 x Smoke Loader, 7 x RedLineStealer, 1 x Tofsee)
ssdeep 6144:XtSMLmd2opjSXH9wRFXlW0VQRBjJz62Td4/o:dDpQjSXdws0VejJ2Wd
TLSH T11A449E10BBA0D035F1B712F4497A83B9B52EBEE25B2440CB62D52BEE56356D4EC3035B
TrID 39.4% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
29.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon b6dacabecee6baa6 (72 x Stop, 68 x RedLineStealer, 55 x Smoke Loader)
Reporter abuse_ch
Tags:exe Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
435
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/269928/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Launching the process to change the firewall settings
Creating a process from a recently created file
Creating a service
Launching a service
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/17248/overview
Behaviour
MalwareBazaar
SystemUptime
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
EvasionGetTickCount
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/627cb7ca86897499c6613664/reports/2f2b2bcd-62cb-4c99-9a40-7c09ff3b3647/overview
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:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/06882e7b-23ea-4e2a-bbbb-4de5e914ebf9
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/992459
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Found malware configuration
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
Multi AV Scanner detection for submitted file
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: 624954 Sample: hBR6GCeDzu.exe Startdate: 12/05/2022 Architecture: WINDOWS Score: 100 48 microsoft-com.mail.protection.outlook.com 2->48 56 Multi AV Scanner detection for domain / URL 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 6 other signatures 2->62 8 cniviqqq.exe 2->8         started        11 hBR6GCeDzu.exe 2 2->11         started        14 svchost.exe 9 1 2->14         started        17 4 other processes 2->17 signatures3 process4 dnsIp5 70 Detected unpacking (changes PE section rights) 8->70 72 Detected unpacking (overwrites its own PE header) 8->72 74 Writes to foreign memory regions 8->74 80 2 other signatures 8->80 19 svchost.exe 1 8->19         started        46 C:\Users\user\AppData\Local\...\cniviqqq.exe, PE32 11->46 dropped 76 Uses netsh to modify the Windows network and firewall settings 11->76 78 Modifies the windows firewall 11->78 23 cmd.exe 1 11->23         started        26 netsh.exe 3 11->26         started        28 cmd.exe 2 11->28         started        30 3 other processes 11->30 54 127.0.0.1 unknown unknown 14->54 file6 signatures7 process8 dnsIp9 50 niflheimr.cn 45.8.229.39, 443, 49770, 49789 RETN-ASEU Russian Federation 19->50 52 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49769 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->52 64 System process connects to network (likely due to code injection or exploit) 19->64 66 Found API chain indicative of debugger detection 19->66 68 Deletes itself after installation 19->68 44 C:\Windows\SysWOW64\...\cniviqqq.exe (copy), PE32 23->44 dropped 32 conhost.exe 23->32         started        34 conhost.exe 26->34         started        36 conhost.exe 28->36         started        38 conhost.exe 30->38         started        40 conhost.exe 30->40         started        42 conhost.exe 30->42         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3ce8363d05d1015ebd88250aad7c26b2ec0383b3e8a1634aec0cd86900f29324/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2022-05-10 15:11:23 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
31 of 41 (75.61%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=htudmpif2eav5pmieufk27bgwlwaha5t5cqwgsxmbtmgsahssmsa._file
Verdict:
malicious
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/220512-jcy6vsbaf2/
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:
niflheimr.cn
jotunheim.name
Unpacked files
SH256 hash:
8a45b9fe9a64bef219d7bada4de2e61bd6daa96d913b1d0be5cb4faa83d4b70b
MD5 hash:
69126d6d1a71a666204535aa01e990f4
SHA1 hash:
970ead4d879aace069bf19c80928031df9af0dd1
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/fb49aaba-e077-4777-b74d-53591f0d87f0/
Parent samples :
8fd888d45037a4390dfa1675314acfd3184aed3386d34d2e3aec78aeb1b12cca
140a1853c2a319ccd4f2fd07cf1712a15adab77c81c66d01f876ef17806889c1
8fc3150c1a665a902a55f53053966ee6782420059be6d0151efaf7eebaf48e73
4cc8f23e22db5a8201474e9d46e986ad4772b8ea91c9e281242f2cb5f10dae0b
3ce8363d05d1015ebd88250aad7c26b2ec0383b3e8a1634aec0cd86900f29324
SH256 hash:
3ce8363d05d1015ebd88250aad7c26b2ec0383b3e8a1634aec0cd86900f29324
MD5 hash:
c334c4a18ad3d9dea36f07b5b04696db
SHA1 hash:
1dd0dbeaf19a6dfbd4f1e9294a3f9ed94e47d438
Link:
https://www.unpac.me/results/fb49aaba-e077-4777-b74d-53591f0d87f0/
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/3ce8363d05d1015ebd88250aad7c26b2ec0383b3e8a1634aec0cd86900f29324

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:CoinMiner_Strings
Create hunting rule
Author:Florian Roth
Description:Detects mining pool protocol string in Executable
Reference:https://minergate.com/faq/what-pool-address
Rule name:MALWARE_Win_Tofsee
Create hunting rule
Author:ditekSHen
Description:Detects Tofsee
Rule name:MAL_XMR_Miner_May19_1
Create hunting rule
Author:Florian Roth
Description:Detects Monero Crypto Coin Miner
Reference:https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/
Rule name:MAL_XMR_Miner_May19_1_RID2E1B
Create hunting rule
Author:Florian Roth
Description:Detects Monero Crypto Coin Miner
Reference:https://www.guardicore.com/2019/05/nansh0u-campaign-hackers-arsenal-grows-stronger/
Rule name:MINER_monero_mining_detection
Create hunting rule
Author:Trellix ATR team
Description:Monero mining software
Rule name:PUA_Crypto_Mining_CommandLine_Indicators_Oct21
Create hunting rule
Author:Florian Roth
Description:Detects command line parameters often used by crypto mining software
Reference:https://www.poolwatch.io/coin/monero
Rule name:win_tofsee_w0
Create hunting rule
Author:akrasuski1
Rule name:XMRIG_Monero_Miner
Create hunting rule
Author:Florian Roth
Description:Detects Monero mining software
Reference:https://github.com/xmrig/xmrig/releases
Rule name:XMRIG_Monero_Miner_RID2DC1
Create hunting rule
Author:Florian Roth
Description:Detects Monero mining software
Reference:https://github.com/xmrig/xmrig/releases

File information

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

Web download

Tofsee

Executable exe 3ce8363d05d1015ebd88250aad7c26b2ec0383b3e8a1634aec0cd86900f29324

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/269928/
  
URLhaus
https://urlhaus.abuse.ch/url/2051648/
  
Delivery method
Distributed via web download

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