MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ee8c0eda3de0ce70a8b133b2c872541fc1d813536667acfd674f1f007365be75. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ee8c0eda3de0ce70a8b133b2c872541fc1d813536667acfd674f1f007365be75
SHA3-384 hash: 5933393ad422b8d3963df278f0666ab0ec18bfe6b9d32811d4d162b9b15672637a3ea385d20803b13e612a16abbf669c
SHA1 hash: 7a99c5451eed05f363a4d89afe33c9406e155f95
MD5 hash: 5e99606ef31ac864c982046d8e2c62f5
humanhash: stream-jersey-arkansas-vegan
File name:5e99606ef31ac864c982046d8e2c62f5.exe
Download: download sample
Signature Tofsee
Create hunting rule
File size:205'824 bytes
First seen:2021-12-12 12:08:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash af69c0299dddc24235527244e383548d (1 x RedLineStealer, 1 x Tofsee)
ssdeep 3072:3bt9EvSpbgI7Kpr0kgG1R546/eZo5U1wv+X2whsZVggjcGkNIVqIe52:3btzbgI7fHA46Wv1wF7b7ITsqs
Threatray 179 similar samples on MalwareBazaar
TLSH T1BD14BEC136ECC472D1A6397048709BE54E7BBC23DA30414F33792BAE5F766C09A29366
File icon (PE):PE icon
dhash icon fcfcb4d4d4d4d8c8 (18 x RedLineStealer, 10 x RaccoonStealer, 5 x Smoke Loader)
Reporter abuse_ch
Tags:exe Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
775
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5e99606ef31ac864c982046d8e2c62f5.exe
Verdict:
Malicious activity
Analysis date:
2021-12-12 12:10:00 UTC
Tags:
trojan tofsee miner
Link:
https://app.any.run/tasks/456bafbd-810e-48a0-858d-cfba3eb1689f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/213400/
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
Sending a custom TCP request
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:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/1705/overview
Behaviour
MalwareBazaar
SystemUptime
CPUID_Instruction
MeasuringTime
EvasionQueryPerformanceCounter
EvasionGetTickCount
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/61b5e6602a069372660e0ba3/reports/67b2c49b-2f4f-4c7e-b8a2-6397640438e1/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/1a4ddb85-857c-4af5-8783-5e0340ace377
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/905960
Signature
Allocates memory in foreign processes
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 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
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: 538438 Sample: NXsv9E4JbY.exe Startdate: 12/12/2021 Architecture: WINDOWS Score: 100 56 mubrikych.top 2->56 58 microsoft-com.mail.protection.outlook.com 2->58 64 Found malware configuration 2->64 66 Yara detected Tofsee 2->66 68 Sigma detected: Suspect Svchost Activity 2->68 70 6 other signatures 2->70 8 fxacmdfs.exe 2->8         started        11 NXsv9E4JbY.exe 2 2->11         started        14 svchost.exe 2->14         started        16 10 other processes 2->16 signatures3 process4 dnsIp5 76 Detected unpacking (changes PE section rights) 8->76 78 Detected unpacking (overwrites its own PE header) 8->78 80 Writes to foreign memory regions 8->80 88 2 other signatures 8->88 19 svchost.exe 1 8->19         started        50 C:\Users\user\AppData\Local\...\fxacmdfs.exe, PE32 11->50 dropped 82 Uses netsh to modify the Windows network and firewall settings 11->82 84 Modifies the windows firewall 11->84 23 cmd.exe 1 11->23         started        26 netsh.exe 3 11->26         started        28 cmd.exe 2 11->28         started        32 3 other processes 11->32 86 Changes security center settings (notifications, updates, antivirus, firewall) 14->86 30 MpCmdRun.exe 1 14->30         started        52 127.0.0.1 unknown unknown 16->52 54 192.168.2.1 unknown unknown 16->54 file6 signatures7 process8 dnsIp9 60 mubrikych.top 47.251.44.221, 443, 49767, 49810 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC United States 19->60 62 microsoft-com.mail.protection.outlook.com 104.47.54.36, 25, 49764 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->62 72 System process connects to network (likely due to code injection or exploit) 19->72 74 Deletes itself after installation 19->74 48 C:\Windows\SysWOW64\...\fxacmdfs.exe (copy), PE32 23->48 dropped 34 conhost.exe 23->34         started        36 conhost.exe 26->36         started        38 conhost.exe 28->38         started        40 conhost.exe 30->40         started        42 conhost.exe 32->42         started        44 conhost.exe 32->44         started        46 conhost.exe 32->46         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ee8c0eda3de0ce70a8b133b2c872541fc1d813536667acfd674f1f007365be75/
Threat name:
Win32.Trojan.Fragtor
Create hunting rule
Status:
Malicious
First seen:
2021-12-12 12:09:08 UTC
File Type:
PE (Exe)
Extracted files:
39
AV detection:
19 of 40 (47.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=52ga5wr54dhhbkfrgozmq4sud7a5qe2tmzt2z7lhj4pqa43fxz2q._file
Verdict:
malicious
Similar samples:
0467d83ba3b0d1f7c09d3fa662383e261ea44ea866cdfa0c686eba4cc5a822f2
Tofsee
5be51808188867cee6e87361ddfb938e2e9bb943bd8da12ec4fc1f1201b7d612
Tofsee
8325ddbf8fc654039273c60aee91332ebf8d8896da1109f6abac422f910bddf9
Tofsee
8fcb2057bdac3ba88cb811c44a0d79358075525506b1517c3e713aec8d31a666
Tofsee
967692708e762fda8ecb0b971aa06e33bca0b9d97b22ac7ffe8297df40a136dd
Tofsee
accec2b9024faec177cce64e4c19665ec27722e1aa976704c1b9e29ed21100d6
Tofsee
af21217ee5523873bc4ee3b262ce06a371a1095abfea9729e3413cf9da1a0cab
Tofsee
b107df92ff500ba6ea60893330131d3365f30691593c0ab4719578ac3b44a14d
Tofsee
f5c60cf3334fc3093cb2b7b6bcfa480bf87a74b4edd8830b97c1ee3b3e66cefd
Tofsee
fd3dc0471381c2c032b31d76bccf7e126526dd9448066ca9d35e1e62e1a188b3
Tofsee
+ 169 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/211212-pbfwsadean/
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:
mubrikych.top
oxxyfix.xyz
Unpacked files
SH256 hash:
72ed24d8c2733d0095568505bf2fb6c9eb1877c1737c44d6e9527cd4d1eb01ee
MD5 hash:
683bd5e39814ff14f3abcef08cb179a2
SHA1 hash:
311689339a20bb1fe040c5caf553871a4a2a088b
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/772e3479-5d4e-48a1-884d-b86afc324037/
Parent samples :
ee8c0eda3de0ce70a8b133b2c872541fc1d813536667acfd674f1f007365be75
56d1b5134ca256082b80214a7a7bbb3f486e8e8aabe95e17a83ae32dfad8e70b
3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e
f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d
45fced29713e8dc96972faeab4f21ec670543c252ed824b358294e9b8270e496
SH256 hash:
ee8c0eda3de0ce70a8b133b2c872541fc1d813536667acfd674f1f007365be75
MD5 hash:
5e99606ef31ac864c982046d8e2c62f5
SHA1 hash:
7a99c5451eed05f363a4d89afe33c9406e155f95
Link:
https://www.unpac.me/results/772e3479-5d4e-48a1-884d-b86afc324037/
Malware family:
XMRIG
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ee8c0eda3de0/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/ee8c0eda3de0ce70a8b133b2c872541fc1d813536667acfd674f1f007365be75

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/213400/

Comments