MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de5704d6579398a4b51f7458c105759c46096567661a26bffe1159ef11a16eb8. 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


CoinMiner


Vendor detections: 16


Intelligence 16 IOCs YARA 11 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: de5704d6579398a4b51f7458c105759c46096567661a26bffe1159ef11a16eb8
SHA3-384 hash: e7e67289fe99f7734630cbfb3d5865ee33d230896bdf6135b55b7daa052c95ae6447b7876cd980059986c37939194f74
SHA1 hash: 9dd7593f1f478bce269d1eccf94b44113c8d708a
MD5 hash: 5906ac14bc45a1f39cb9eb790a1d3b27
humanhash: oklahoma-papa-oscar-enemy
File name:skqrzrsh.exe
Download: download sample
Signature CoinMiner
Create hunting rule
File size:12'636'160 bytes
First seen:2022-08-08 13:06:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c79c17e88a07db67583d0e8185e73256 (1 x Stop, 1 x RaccoonStealer, 1 x CoinMiner)
ssdeep 6144:6HzU1OqD5PuzNsDDPUmGzs79ktSpm4dpm4dpm4dpm4dpm4dpm4dpm4dpm4dpm4dl:6TU1xgNsUs7
TLSH T106D6C68167E5DC25E6F74A74587492D92A77FCD66824814FF0683F0B38B22C2ADB1723
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d2b9e4d4e4b987f9 (1 x Smoke Loader, 1 x CoinMiner)
Reporter DFNCERT
Tags:CoinMiner exe Tofsee XMRIG

Intelligence

File Origin
# of uploads :
1
# of downloads :
521
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
tofsee
Create hunting rule
ID:
1
File name:
skqrzrsh.exe
Verdict:
Malicious activity
Analysis date:
2022-08-08 12:46:49 UTC
Tags:
tofsee trojan miner
Link:
https://app.any.run/tasks/bb0fbd98-ab2b-483a-93cd-91aebc6beff1

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/297144/
Detection(s):
Win.Packed.Crypterx-9936080-0
Create hunting rule

Win.Dropper.Tofsee-9937828-0
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
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed ransomware tofsee
Link:
https://www.filescan.io/uploads/62f10a7de64b7f874e82b3bd/reports/c1e21245-5e85-4b72-b225-60139a370143/overview
Result
Verdict:
MALICIOUS
Malware family:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/44902ade-c6c2-48ca-a856-32cabb49ee2d
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1047900
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
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 domain / URL
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
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: 680394 Sample: skqrzrsh.exe Startdate: 08/08/2022 Architecture: WINDOWS Score: 100 54 microsoft-com.mail.protection.outlook.com 2->54 60 Multi AV Scanner detection for domain / URL 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus detection for dropped file 2->64 66 7 other signatures 2->66 8 bxzeflgr.exe 2->8         started        11 skqrzrsh.exe 2 2->11         started        14 svchost.exe 2->14         started        16 11 other processes 2->16 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 86 2 other signatures 8->86 19 svchost.exe 1 8->19         started        50 C:\Users\user\AppData\Local\...\bxzeflgr.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) 14->82 30 MpCmdRun.exe 1 14->30         started        52 127.0.0.1 unknown unknown 16->52 84 Query firmware table information (likely to detect VMs) 16->84 file6 signatures7 process8 dnsIp9 56 patmushta.info 37.77.104.197, 443, 49747, 49762 CONNESIConnesispaIT Russian Federation 19->56 58 microsoft-com.mail.protection.outlook.com 52.101.40.29, 25, 49746 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 19->58 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\...\bxzeflgr.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:
tofsee
Create hunting rule
Link:
https://mwdb.cert.pl/sample/de5704d6579398a4b51f7458c105759c46096567661a26bffe1159ef11a16eb8/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2022-02-15 07:12:19 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3zlqjvsxsomkjni7ormmcblvtrdaszlhmyncnp76cfm66enbn24a._file
Verdict:
malicious
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:tofsee family:xmrig evasion miner persistence trojan
Link:
https://tria.ge/reports/220808-qcmldsbacr/
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
Checks computer location settings
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:
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/3017d9a4-1fed-4e64-bbc5-afc4fef43289/
Parent samples :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 hash:
de5704d6579398a4b51f7458c105759c46096567661a26bffe1159ef11a16eb8
MD5 hash:
5906ac14bc45a1f39cb9eb790a1d3b27
SHA1 hash:
9dd7593f1f478bce269d1eccf94b44113c8d708a
Link:
https://www.unpac.me/results/3017d9a4-1fed-4e64-bbc5-afc4fef43289/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/de5704d65793/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/de5704d6579398a4b51f7458c105759c46096567661a26bffe1159ef11a16eb8

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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.

Cape
Cape
https://www.capesandbox.com/analysis/297144/

Comments


Avatar
DFN-CERT commented on 2022-08-08 13:16:19 UTC

https://tria.ge/220808-p1d4gsdag7