MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fed7c4e47ea734756b34a457fbb402ce63624e1c8bbe48441a9634f4130e022c. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fed7c4e47ea734756b34a457fbb402ce63624e1c8bbe48441a9634f4130e022c
SHA3-384 hash: 396024e7e1c41cdce908fca4213dc920f33af239138da949b1b6262104c03451b13f29c959af098296c24607aa7ce9f6
SHA1 hash: fc1208a0eacf1e21f0199d7748292c8a5a114f0f
MD5 hash: 6bdec1b519e961a4d757be0541c6e343
humanhash: monkey-dakota-jig-magazine
File name:6bdec1b519e961a4d757be0541c6e343.exe
Download: download sample
Signature Tofsee
Create hunting rule
File size:251'904 bytes
First seen:2022-02-22 08:23:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 79b5251634d5b244904e960c8e6097e4 (1 x Tofsee)
ssdeep 3072:v036cBx3W3XK0mC5WcvmiK3dmXsxkgaBChhqLQV:HXK0DkYNABigaQq8V
Threatray 228 similar samples on MalwareBazaar
TLSH T1A134BE017AD0C872D2E64D704C79C6EE562BFC629B61A587F654AF5F3E313A09A36303
File icon (PE):PE icon
dhash icon a1bcdcac9c8cb484 (8 x RaccoonStealer, 5 x RedLineStealer, 4 x Stop)
Reporter abuse_ch
Tags:exe Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
563
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Tofsee
Create hunting rule
Link:
https://www.capesandbox.com/analysis/243180/
Detection(s):
Win.Packed.Filerepmalware-9938574-0
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
Launching the process to change the firewall settings
Creating a service
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
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/6965/overview
Behaviour
MalwareBazaar
SystemUptime
CPUID_Instruction
MeasuringTime
EvasionGetTickCount
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/62149dadac8ad0468b6546fe/reports/462e6e17-7f67-4584-a65a-f282ea4f3f64/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/87b19387-c895-4a3c-9625-5a1604e83b3b
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/943798
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
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
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
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: 576275 Sample: xI0ROzCdvZ.exe Startdate: 22/02/2022 Architecture: WINDOWS Score: 100 54 patmushta.info 2->54 56 microsoft-com.mail.protection.outlook.com 2->56 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for URL or domain 2->66 68 9 other signatures 2->68 8 clljndkv.exe 2->8         started        11 xI0ROzCdvZ.exe 2 2->11         started        14 svchost.exe 2->14         started        16 8 other processes 2->16 signatures3 process4 dnsIp5 74 Detected unpacking (changes PE section rights) 8->74 76 Detected unpacking (overwrites its own PE header) 8->76 78 Writes to foreign memory regions 8->78 86 2 other signatures 8->86 19 svchost.exe 1 8->19         started        50 C:\Users\user\AppData\Local\...\clljndkv.exe, PE32 11->50 dropped 80 Uses netsh to modify the Windows network and firewall settings 11->80 82 Modifies the windows firewall 11->82 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 84 Changes security center settings (notifications, updates, antivirus, firewall) 14->84 30 MpCmdRun.exe 1 14->30         started        52 127.0.0.1 unknown unknown 16->52 file6 signatures7 process8 dnsIp9 58 patmushta.info 80.66.64.181, 443, 49749, 49781 VAD-SRL-AS1MD Russian Federation 19->58 60 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49748 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->60 70 System process connects to network (likely due to code injection or exploit) 19->70 72 Deletes itself after installation 19->72 48 C:\Windows\SysWOW64\...\clljndkv.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/fed7c4e47ea734756b34a457fbb402ce63624e1c8bbe48441a9634f4130e022c/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2022-02-22 08:24:10 UTC
File Type:
PE (Exe)
Extracted files:
35
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=73l4jzd6u42hk2zuurl7xnaczzrwetq4ro7eqra2sy2pieyoaiwa._file
Verdict:
malicious
Similar samples:
1a233cd70753a0c450148f0df3dc5881ef7b5bc7449a2da7da4bffa7f3d959b4
Tofsee
80744c88885d98a2ea865c01b2f2cc6a9e8ee7653405e7a662314e529bb40dfe
Tofsee
925c11560a88096bc28480d802d69da132ff883236e0d8dfaf9a367fa07cc245
Tofsee
934a9881f22c30976cb47fdef452982f4dca6a0b94e67d2c64fe798850601771
Tofsee
cfcb21c8c129c8c2c525ecfac8bd883260eda6038e3991210765e582007451dd
Tofsee
f6ca96e0301249fbada0e52bcd3c9b2b6ee0cec95f13e8984ef747d513651fc9
Tofsee
+ 218 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/220222-kaqblsefa7/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Creates new service(s)
Executes dropped EXE
Modifies Windows Firewall
Sets service image path in registry
XMRig Miner Payload
Tofsee
xmrig
Malware Config
C2 Extraction:
patmushta.info
ovicrush.cn
Unpacked files
SH256 hash:
e658fe6d3bd685f41eb0527432099ee01075bfdb523ef5aa3e5ebd42221c8494
MD5 hash:
337e0e16dfcab6a2059cdbf81932e973
SHA1 hash:
c2ab7a92b8e07750f9f82f438291564bf5def67a
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/c3f315ee-262e-4645-b9c9-cbed7d461cca/
Parent samples :
9dd979c20bd6d843da8f29afc35c0ec2a79bcb5f5100a0d70103509e58c1c5f5
9cab0c7efdafdcab54b20bf295f36ecb1cc35cdad27dddb7b568a637263e8003
f6ca96e0301249fbada0e52bcd3c9b2b6ee0cec95f13e8984ef747d513651fc9
f7024727c4d979b2b200345c3785945aa7c125670fb7ad570f3cf0b45273d966
5d84be18669beb78b0993523cbaf3e66f352ce34888a6f63245290ca02436785
fed7c4e47ea734756b34a457fbb402ce63624e1c8bbe48441a9634f4130e022c
3db9a9633bb3097ee7f34cd85bbc168ed3a59496c0c407cf1d22087d58fa2763
5a7e30f8306b5487f44f8418f635fb52b5d239690342e1c2983f3aceb74f8b50
84cc4707c97905c1082d9eb31dd7d995e04955506b9275b6c4bfd19683150430
de5704d6579398a4b51f7458c105759c46096567661a26bffe1159ef11a16eb8
SH256 hash:
fed7c4e47ea734756b34a457fbb402ce63624e1c8bbe48441a9634f4130e022c
MD5 hash:
6bdec1b519e961a4d757be0541c6e343
SHA1 hash:
fc1208a0eacf1e21f0199d7748292c8a5a114f0f
Link:
https://www.unpac.me/results/c3f315ee-262e-4645-b9c9-cbed7d461cca/
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/fed7c4e47ea734756b34a457fbb402ce63624e1c8bbe48441a9634f4130e022c

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:MALWARE_Win_Tofsee
Create hunting rule
Author:ditekSHen
Description:Detects 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.

Web download

Tofsee

Executable exe fed7c4e47ea734756b34a457fbb402ce63624e1c8bbe48441a9634f4130e022c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2051648/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/243180/

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