MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20. 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: 14


Intelligence 14 IOCs YARA 9 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20
SHA3-384 hash: 10b81005aa70db2e14c9c24576f4ee21c8c0ea6c85daecbf9a1d8a8a0be884e738842130b344eeb4c15dd33b74602066
SHA1 hash: 937b032589eb76eb685fb19a02cd5952c89dab8c
MD5 hash: 3f17b75eeee9de388f51ef821ed30f15
humanhash: mirror-enemy-failed-coffee
File name:3f17b75eeee9de388f51ef821ed30f15
Download: download sample
Signature Tofsee
Create hunting rule
File size:293'888 bytes
First seen:2022-01-19 05:39:04 UTC
Last seen:2022-01-19 08:00:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0d9dff7965da5dfdec50f1a4a9983dff (1 x Tofsee, 1 x RedLineStealer)
ssdeep 3072:D/s8DI8Sa/p0b2q6wU1tDULG2WZbfqzI/P51Xmfk1M/h3:Dk8M8fY/VmtGDgp1
Threatray 196 similar samples on MalwareBazaar
TLSH T12A54BF213590CC72C48636318816CFE59ABEF831DA65864773E82B6ABF213D05B7935F
File icon (PE):PE icon
dhash icon fcf8b4b4b494d9c1 (17 x Smoke Loader, 8 x RedLineStealer, 6 x Amadey)
Reporter zbetcheckin
Tags:32 exe Tofsee

Intelligence

File Origin
# of uploads :
2
# of downloads :
627
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3f17b75eeee9de388f51ef821ed30f15
Verdict:
Malicious activity
Analysis date:
2022-01-19 05:53:29 UTC
Tags:
trojan tofsee miner
Link:
https://app.any.run/tasks/b8987aaf-8306-4e52-8715-39b7f51d8502

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/220454/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.19967.22631.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
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)
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/4652/overview
Behaviour
MalwareBazaar
CPUID_Instruction
MeasuringTime
SystemUptime
EvasionGetTickCount
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/61e7a3ff0f8c757253cb3525/reports/ccc624cf-e22e-4bf1-acc7-d7130e2c1bec/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/1664dbeb-c8a8-4cff-bd58-068ca9bea107
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/923114
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 malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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: 555592 Sample: P2fhD2Ox4U Startdate: 19/01/2022 Architecture: WINDOWS Score: 100 47 microsoft-com.mail.protection.outlook.com 2->47 53 Multi AV Scanner detection for domain / URL 2->53 55 Found malware configuration 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 8 other signatures 2->59 8 wmepeitj.exe 2->8         started        11 P2fhD2Ox4U.exe 2 2->11         started        14 svchost.exe 1 2->14         started        16 3 other processes 2->16 signatures3 process4 file5 65 Detected unpacking (changes PE section rights) 8->65 67 Detected unpacking (overwrites its own PE header) 8->67 69 Writes to foreign memory regions 8->69 75 2 other signatures 8->75 18 svchost.exe 1 8->18         started        45 C:\Users\user\AppData\Local\...\wmepeitj.exe, PE32 11->45 dropped 71 Uses netsh to modify the Windows network and firewall settings 11->71 73 Modifies the windows firewall 11->73 22 cmd.exe 1 11->22         started        25 netsh.exe 3 11->25         started        27 cmd.exe 2 11->27         started        29 3 other processes 11->29 signatures6 process7 dnsIp8 49 patmushta.info 194.87.185.165, 443, 49746, 49778 AS-REGRU Russian Federation 18->49 51 microsoft-com.mail.protection.outlook.com 40.93.207.1, 25, 49745 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->51 61 System process connects to network (likely due to code injection or exploit) 18->61 63 Deletes itself after installation 18->63 43 C:\Windows\SysWOW64\...\wmepeitj.exe (copy), PE32 22->43 dropped 31 conhost.exe 22->31         started        33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        37 conhost.exe 29->37         started        39 conhost.exe 29->39         started        41 conhost.exe 29->41         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2022-01-19 05:39:15 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j63zrf75k6wh2fzezexpe3sjhyk5s5hyhqwh63tsv5hw5aee74qa._file
Verdict:
malicious
Similar samples:
1ae374502df9e63ab3d4b3bc2611b0758f97285c3eb49d58713fd654ed9ab756
Tofsee
3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e
Tofsee
45fced29713e8dc96972faeab4f21ec670543c252ed824b358294e9b8270e496
Tofsee
7872562982688229ba9bcf6b09cd7282229da0b0690aec62c163e43fcb305631
Tofsee
8325ddbf8fc654039273c60aee91332ebf8d8896da1109f6abac422f910bddf9
Tofsee
925c11560a88096bc28480d802d69da132ff883236e0d8dfaf9a367fa07cc245
Tofsee
c3885fb6e521c358f6058bf09ab7835fc7f0aa71502da2cc7e44701224bfec3a
Tofsee
e142b01c4b04ddca2ffded33fa5e8e3accf2b305021efd57b485cb06f072e84e
Tofsee
ee87fd0a4b66479135cb2342baaa9fbf54e7dfa4ea65a13a35661a8a2f144663
Tofsee
f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d
Tofsee
+ 186 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/220119-gccazsfefj/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
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:
patmushta.info
ovicrush.cn
Unpacked files
SH256 hash:
2a0136875f26961b7dd057eb51511da1af53257d2faaa0e04b6ee80e5dfa0901
MD5 hash:
fcb400ce56c2e2d8d5ed66aedfa07028
SHA1 hash:
350a4e2b3dafba173af0b04980df31be9d3193a4
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/9321a477-630f-481e-85dc-9b483e176e9c/
Parent samples :
7872562982688229ba9bcf6b09cd7282229da0b0690aec62c163e43fcb305631
3710148e7676d904f8b7626c4275ef85777ec3ec99d354246c8d3c5663c6961a
4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20
8c505862e16dd60fe08e63fd75b3460f21201f77c19d0c4793a68a7b35f5f2e5
5d79e81b0646780b04099e4fe9b4805a97d2ae818443d644a87905dc40cd9e68
aee866c403304b93df8b255fb452ec1a25b9115bc8357489e42a2498b065d6e7
SH256 hash:
4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20
MD5 hash:
3f17b75eeee9de388f51ef821ed30f15
SHA1 hash:
937b032589eb76eb685fb19a02cd5952c89dab8c
Link:
https://www.unpac.me/results/9321a477-630f-481e-85dc-9b483e176e9c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4fb79897fd57/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/4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20

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:Christiaan Beek | McAfee 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 4fb79897fd57ac7d1724c92ef26e493e15d974f83c2c7f6e72af4f6e8084ff20

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/220454/
  
URLhaus
https://urlhaus.abuse.ch/url/1889202/

Comments


Avatar
zbet commented on 2022-01-19 05:39:06 UTC

url : hxxp://185.7.214.171:8080/6.php