MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6daf2f4b11e77d52247a97aa5a8640a9b7957301a152ad48d493581a0148a752. 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 10 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6daf2f4b11e77d52247a97aa5a8640a9b7957301a152ad48d493581a0148a752
SHA3-384 hash: 0b65f22b778c191d051092fb41ffec3861c8bffe235c9c2546d9518208e8bc8476c5b34451b161a9fd1ac51cd198d301
SHA1 hash: 75bffbd17c24bd34b1fec8408fab3acbc4cba051
MD5 hash: 6882fe2e90093a2bfd5d96371330e809
humanhash: magazine-green-fish-river
File name:6882fe2e90093a2bfd5d96371330e809
Download: download sample
Signature Tofsee
Create hunting rule
File size:256'000 bytes
First seen:2022-04-05 07:04:14 UTC
Last seen:2022-04-05 08:07:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 25245420ce2e5010c32179ae5d5b5793 (4 x Loki, 2 x Tofsee, 2 x RedLineStealer)
ssdeep 3072:tGc7ey7rE/gU3dcP14Vhn8h7xyXKBAITJovxsR8/5IbIGS2nPERKzwVchg3k1j3O:tI1tm6HnAxyXKGpvxmIbRRTVcS30Yl9
Threatray 251 similar samples on MalwareBazaar
TLSH T1DE448D10BB90D034F1B716F489BA93ACB93E7AB05B3494CB62D516ED5634AE4EC3131B
File icon (PE):PE icon
dhash icon b2dacabecee6baa6 (148 x RedLineStealer, 145 x Stop, 100 x Smoke Loader)
Reporter zbetcheckin
Tags:32 exe Tofsee

Intelligence

File Origin
# of uploads :
2
# of downloads :
560
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Tofsee
Create hunting rule
Link:
https://www.capesandbox.com/analysis/260860/
Detection(s):
Win.Dropper.Tofsee-9942707-0
Create hunting rule

Win.Dropper.LokiBot-9942830-0
Create hunting rule

Win.Packed.Pwsx-9943145-0
Create hunting rule

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
Launching the process to change the firewall settings
Creating a file
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:
  3/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/12670/overview
Behaviour
MeasuringTime
SystemUptime
EvasionGetTickCount
EvasionQueryPerformanceCounter
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/624bea23db9ca5cf842293ef/reports/28a42dd2-0279-489e-a47b-83e5171de252/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/618f4237-2675-4bb9-9b3c-0a8b1f36bb9a
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/970629
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
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 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: 603114 Sample: nAiRkImjMi Startdate: 05/04/2022 Architecture: WINDOWS Score: 100 48 microsoft-com.mail.protection.outlook.com 2->48 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for dropped file 2->60 62 9 other signatures 2->62 8 fjkjylyc.exe 2->8         started        11 nAiRkImjMi.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\...\fjkjylyc.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 46.161.41.19, 443, 49776, 49799 PINDC-ASRU Russian Federation 19->50 52 microsoft-com.mail.protection.outlook.com 104.47.53.36, 25, 49774 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\...\fjkjylyc.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/6daf2f4b11e77d52247a97aa5a8640a9b7957301a152ad48d493581a0148a752/
Threat name:
Win32.Trojan.Azorult
Create hunting rule
Status:
Malicious
First seen:
2022-04-05 07:05:05 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nwxs6syr456vejd2s6vfvbsavg3zk4ybufjk2sgusnmbuakiu5ja._file
Verdict:
malicious
Similar samples:
38a30aee82cdd8e5338e168d99fdce7b8e032a89da64e48751b2e45f9d50ad13
Tofsee
3db9a9633bb3097ee7f34cd85bbc168ed3a59496c0c407cf1d22087d58fa2763
Tofsee
4cb27107153be0d305e8d3452a8d665fdc2567e1f38f5e042c2b73987fad7106
Tofsee
5d84be18669beb78b0993523cbaf3e66f352ce34888a6f63245290ca02436785
Tofsee
63f55d940203d80cb3ae2b759bf20406a2061c29236441fc1690ee51b97081df
Tofsee
abffa8a6fc90178764f519e4dc44f45b94c4632a146a517c77037eaa7ac887c0
Tofsee
f6ca96e0301249fbada0e52bcd3c9b2b6ee0cec95f13e8984ef747d513651fc9
Tofsee
f7024727c4d979b2b200345c3785945aa7c125670fb7ad570f3cf0b45273d966
Tofsee
+ 241 additional samples on MalwareBazaar
Result
Malware family:
tofsee
Create hunting rule
Score:
  10/10
Tags:
family:tofsee evasion persistence trojan
Link:
https://tria.ge/reports/220405-hwgv9abab6/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Launches sc.exe
Suspicious use of SetThreadContext
Checks computer location settings
Creates new service(s)
Executes dropped EXE
Modifies Windows Firewall
Tofsee
Malware Config
C2 Extraction:
niflheimr.cn
jotunheim.name
Unpacked files
SH256 hash:
2c7da5333ec8e2d75607b54c2caaab4ea3e1805b455d2e8cb8faab397033c6c8
MD5 hash:
7f2e04283f4a0c58b5ea10725aeab839
SHA1 hash:
8e0eeac8abd5f310561bcae01d571de2f06bc0a3
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/3eb799d4-71b1-455d-b5c6-6586f1273791/
Parent samples :
e6b32e68678e821d2af968562b23a0826421de0d937ab1ec31437ac79ca34b94
b9291afeb5418b38950175e191ba50b942bf18824ec4b853d9b6a1ce0f6d6f51
6daf2f4b11e77d52247a97aa5a8640a9b7957301a152ad48d493581a0148a752
0c562a5c681740b9496f31015d6ec74b9daf4ca21ce5dbde6788c866fb0d6aea
SH256 hash:
6daf2f4b11e77d52247a97aa5a8640a9b7957301a152ad48d493581a0148a752
MD5 hash:
6882fe2e90093a2bfd5d96371330e809
SHA1 hash:
75bffbd17c24bd34b1fec8408fab3acbc4cba051
Link:
https://www.unpac.me/results/3eb799d4-71b1-455d-b5c6-6586f1273791/
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/6daf2f4b11e77d52247a97aa5a8640a9b7957301a152ad48d493581a0148a752

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:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
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 6daf2f4b11e77d52247a97aa5a8640a9b7957301a152ad48d493581a0148a752

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/260860/
  
URLhaus
https://urlhaus.abuse.ch/url/2051648/

Comments


Avatar
zbet commented on 2022-04-05 07:04:17 UTC

url : hxxp://62.204.41.46:8080/a.exe