MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e
SHA3-384 hash: 0bc24eee73e54f7675e4255c4444c7cd70377995fab025075c31a0da508b8441daa41886d9f4f7380292c1e9c7e36c19
SHA1 hash: 1e0461ece662692598fe4281044fa1c0cd7fed31
MD5 hash: 90e20bb989d503704c16faf8e852e6b7
humanhash: leopard-charlie-hot-venus
File name:90e20bb989d503704c16faf8e852e6b7
Download: download sample
Signature Tofsee
Create hunting rule
File size:342'528 bytes
First seen:2021-12-16 02:09:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4bb8a39044d1acb8817ffc34236f365c (14 x RedLineStealer, 2 x ArkeiStealer, 1 x Tofsee)
ssdeep 6144:91XBb8PxF6Oc37cqAibHlD5EDYe2Hg0C:PXyx4Oc37cvib7EDYB
Threatray 180 similar samples on MalwareBazaar
TLSH T149748C10A6E1D435F1B312F85AB5A3B9B53F7AA16B3490CF13D416EA56386E0EC3131B
File icon (PE):PE icon
dhash icon badacabecee6baa6 (95 x Stop, 87 x RedLineStealer, 62 x Smoke Loader)
Reporter zbetcheckin
Tags:32 exe Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
679
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/214417/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
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:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/2157/overview
Behaviour
MalwareBazaar
SystemUptime
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
EvasionGetTickCount
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware
Link:
https://www.filescan.io/uploads/61ba9ffb45ca64e57f13038c/reports/17c1ec09-e87e-4e5f-b1ec-9eff9b0194b3/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/d38f2ebb-38e8-44ec-894c-2c4eea9c0044
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/908221
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 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: 540699 Sample: 8Io3L3WRiI Startdate: 16/12/2021 Architecture: WINDOWS Score: 100 48 microsoft-com.mail.protection.outlook.com 2->48 56 Found malware configuration 2->56 58 Antivirus detection for dropped file 2->58 60 Yara detected Tofsee 2->60 62 7 other signatures 2->62 8 zjxorebq.exe 2->8         started        11 8Io3L3WRiI.exe 2 2->11         started        14 svchost.exe 9 1 2->14         started        17 4 other processes 2->17 signatures3 process4 dnsIp5 68 Detected unpacking (changes PE section rights) 8->68 70 Detected unpacking (overwrites its own PE header) 8->70 72 Writes to foreign memory regions 8->72 78 2 other signatures 8->78 19 svchost.exe 1 8->19         started        46 C:\Users\user\AppData\Local\...\zjxorebq.exe, PE32 11->46 dropped 74 Uses netsh to modify the Windows network and firewall settings 11->74 76 Modifies the windows firewall 11->76 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 mubrikych.top 91.224.22.134, 443, 49756, 49802 AS-REGRU Russian Federation 19->50 52 microsoft-com.mail.protection.outlook.com 40.93.207.0, 25, 49755 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 Deletes itself after installation 19->66 44 C:\Windows\SysWOW64\...\zjxorebq.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/3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e/
Threat name:
Win32.Trojan.Stopcrypt
Create hunting rule
Status:
Malicious
First seen:
2021-12-16 02:10:12 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hk7v4vz4xtd3g5kdney76b56bworgcc462qu7hg6fbnihz77kkha._file
Verdict:
malicious
Similar samples:
0467d83ba3b0d1f7c09d3fa662383e261ea44ea866cdfa0c686eba4cc5a822f2
Tofsee
1ae374502df9e63ab3d4b3bc2611b0758f97285c3eb49d58713fd654ed9ab756
Tofsee
1dfb58a81f3624b21eb10ce87795e1aa2b3fd928ae83f7c52a37d6cb19e25cf8
Tofsee
8325ddbf8fc654039273c60aee91332ebf8d8896da1109f6abac422f910bddf9
Tofsee
84839e5c70038104b4d9fbf20988ebc952ea698be6d46c0ad5ed072897427b3f
Tofsee
b107df92ff500ba6ea60893330131d3365f30691593c0ab4719578ac3b44a14d
Tofsee
b4138a9f8a35d4c14b3c05e8784d6d6b9dccd52dbf0ec9884e7db4a40ed63886
Tofsee
c06690e3dbb4835f160b434d1bc16ae2731849781ac4c6c718e68e8a54c9d007
Tofsee
c3885fb6e521c358f6058bf09ab7835fc7f0aa71502da2cc7e44701224bfec3a
Tofsee
eb7d2f18d5fc15bbdeb4da2d297db7ec72004f54a4a6ef8194c23d0651538a3f
Tofsee
+ 170 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/211216-clqgrabgen/
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/38b1661c-1d39-4ae6-9be2-81ded2b33fe2/
Parent samples :
ee8c0eda3de0ce70a8b133b2c872541fc1d813536667acfd674f1f007365be75
56d1b5134ca256082b80214a7a7bbb3f486e8e8aabe95e17a83ae32dfad8e70b
3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e
f57855bf23ce70fccbad6dec4c7d9e97710f222f98dfa0141762d66e56b6192d
45fced29713e8dc96972faeab4f21ec670543c252ed824b358294e9b8270e496
SH256 hash:
3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e
MD5 hash:
90e20bb989d503704c16faf8e852e6b7
SHA1 hash:
1e0461ece662692598fe4281044fa1c0cd7fed31
Link:
https://www.unpac.me/results/38b1661c-1d39-4ae6-9be2-81ded2b33fe2/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3abf5e573cbc/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/3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e

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.

Web download

Tofsee

Executable exe 3abf5e573cbcc7b375436931ff07be0d9d13085cf6a14f9cde285a83e7ff528e

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/214417/
  
URLhaus
https://urlhaus.abuse.ch/url/1889202/

Comments


Avatar
zbet commented on 2021-12-16 02:09:13 UTC

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