MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4138a9f8a35d4c14b3c05e8784d6d6b9dccd52dbf0ec9884e7db4a40ed63886. 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 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4138a9f8a35d4c14b3c05e8784d6d6b9dccd52dbf0ec9884e7db4a40ed63886
SHA3-384 hash: 699e5a58e0c99674d18e23737b2680e24b067e34fd68acd10d3aae446770f47ae7398d896d837a70180f8850bd8e0c85
SHA1 hash: a93df50d53a6ae10073bc351790e0bb63aa25d51
MD5 hash: d909469d003fcca0c89409de6bbd07be
humanhash: blue-oven-happy-finch
File name:d909469d003fcca0c89409de6bbd07be
Download: download sample
Signature Tofsee
Create hunting rule
File size:208'384 bytes
First seen:2021-10-28 01:24:03 UTC
Last seen:2021-10-28 02:12:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c2a1052396d8d35dd7ffdeb3af100bc8 (3 x RaccoonStealer, 1 x Tofsee)
ssdeep 3072:JOH6Iq8EA0wXtjGfV6VafsMGABPAbOBsCR3aWrxpzbgqruXhspVggjcGkNIVqI:gH6FA0wCEAGAK2sCMuzbgwu6L7ITsq
Threatray 177 similar samples on MalwareBazaar
TLSH T13114AEF0B2ADC431D0632A30486586B10E2A7C60D560555BF7B4279E1FBEECC9AE537E
File icon (PE):PE icon
dhash icon fcfcf4d4d4d4d8c0 (41 x RedLineStealer, 30 x RaccoonStealer, 9 x Smoke Loader)
Reporter zbetcheckin
Tags:32 exe Tofsee

Intelligence

File Origin
# of uploads :
2
# of downloads :
757
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/200727/
Detection(s):
SecuriteInfo.com.Variant.Fragtor.35416.4993.1942.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Moving a file to the system32 subdirectory
Launching a process
Creating a service
Launching a service
Creating a process from a recently created file
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Sending an HTTP GET request
Connecting to a non-recommended domain
Sending an HTTP POST request
Enabling autorun for a service
Unauthorized injection to a system process
Deleting of the original file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/6179fbb9a9d585e6d53c4609/reports/4e5f14b2-6433-4304-a7d1-39528222b1f0/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/dde4edd7-40c3-482d-ab06-89f0954f285f
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/878207
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
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: 510641 Sample: qA38wM8f4g Startdate: 28/10/2021 Architecture: WINDOWS Score: 100 52 microsoft-com.mail.protection.outlook.com 2->52 60 Multi AV Scanner detection for domain / URL 2->60 62 Found malware configuration 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 8 other signatures 2->66 8 dqzwxcob.exe 2->8         started        11 qA38wM8f4g.exe 2 2->11         started        15 svchost.exe 2->15         started        17 10 other processes 2->17 signatures3 process4 dnsIp5 72 Detected unpacking (changes PE section rights) 8->72 74 Detected unpacking (overwrites its own PE header) 8->74 76 Writes to foreign memory regions 8->76 84 2 other signatures 8->84 19 svchost.exe 1 8->19         started        58 192.168.2.1 unknown unknown 11->58 50 C:\Users\user\AppData\Local\...\dqzwxcob.exe, PE32 11->50 dropped 78 Uses netsh to modify the Windows network and firewall settings 11->78 80 Modifies the windows firewall 11->80 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 82 Changes security center settings (notifications, updates, antivirus, firewall) 15->82 30 MpCmdRun.exe 1 15->30         started        file6 signatures7 process8 dnsIp9 54 quadoil.ru 47.88.12.192, 443, 49744, 49789 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC United States 19->54 56 microsoft-com.mail.protection.outlook.com 104.47.54.36, 25, 49743 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->56 68 System process connects to network (likely due to code injection or exploit) 19->68 70 Deletes itself after installation 19->70 48 C:\Windows\SysWOW64\...\dqzwxcob.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/b4138a9f8a35d4c14b3c05e8784d6d6b9dccd52dbf0ec9884e7db4a40ed63886/
Threat name:
Win32.Trojan.Fragtor
Create hunting rule
Status:
Malicious
First seen:
2021-10-28 01:25:05 UTC
AV detection:
24 of 44 (54.55%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wqjyvh4kgxkmcsz4axuhqtlnnoo4zvjnx4hmtccopw2kidwwhcda._file
Verdict:
malicious
Similar samples:
0467d83ba3b0d1f7c09d3fa662383e261ea44ea866cdfa0c686eba4cc5a822f2
Tofsee
1ae374502df9e63ab3d4b3bc2611b0758f97285c3eb49d58713fd654ed9ab756
Tofsee
1dfb58a81f3624b21eb10ce87795e1aa2b3fd928ae83f7c52a37d6cb19e25cf8
Tofsee
587f79f301d6ca9ad6a02642cf6ebfbce12b3eaa524ecd67834ca1314447c4da
Tofsee
753ace1bff4069f22d20bf3a205b7205e922da38e0c82495fae6b78fd376fc34
Tofsee
8325ddbf8fc654039273c60aee91332ebf8d8896da1109f6abac422f910bddf9
Tofsee
8d64110a77ed9fe2d9454816668d95ed000442a34bb558ca0447ebd8c08b30ba
Tofsee
c3885fb6e521c358f6058bf09ab7835fc7f0aa71502da2cc7e44701224bfec3a
Tofsee
eb7d2f18d5fc15bbdeb4da2d297db7ec72004f54a4a6ef8194c23d0651538a3f
Tofsee
f5c60cf3334fc3093cb2b7b6bcfa480bf87a74b4edd8830b97c1ee3b3e66cefd
Tofsee
+ 167 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/211028-bsdk4aghb6/
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
Legitimate hosting services abused for malware hosting/C2
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:
quadoil.ru
lakeflex.ru
Unpacked files
SH256 hash:
448e8aeb2dcd412f100bd4271b6bc0f87d6922877f96d874d74144ec811de88c
MD5 hash:
40f53a7b73d2d93a204c3a74367fb4c2
SHA1 hash:
39e2dcabc45f28f8d6ec36027032d40060abb047
Detections:
win_tofsee_w0
Create hunting rule
Link:
https://www.unpac.me/results/b0a897d4-d4d2-4253-89cf-5ad09ce5f063/
Parent samples :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 hash:
b4138a9f8a35d4c14b3c05e8784d6d6b9dccd52dbf0ec9884e7db4a40ed63886
MD5 hash:
d909469d003fcca0c89409de6bbd07be
SHA1 hash:
a93df50d53a6ae10073bc351790e0bb63aa25d51
Link:
https://www.unpac.me/results/b0a897d4-d4d2-4253-89cf-5ad09ce5f063/
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/b4138a9f8a35d4c14b3c05e8784d6d6b9dccd52dbf0ec9884e7db4a40ed63886

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: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: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 b4138a9f8a35d4c14b3c05e8784d6d6b9dccd52dbf0ec9884e7db4a40ed63886

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/200727/

Comments


Avatar
zbet commented on 2021-10-28 01:24:05 UTC

url : hxxp://192.162.246.70/6.php