MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef25bb229ec8ca7d7b2e3d4e23036b74bdc8b9154bb4c5b532e7ea2a0a7c8ee6. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef25bb229ec8ca7d7b2e3d4e23036b74bdc8b9154bb4c5b532e7ea2a0a7c8ee6
SHA3-384 hash: 0ddd482e1c2342d571bef1ce7034fea37db30d704906f12135b3b0a5f263fcfba4d358cd7a01983a3b06739d920b95df
SHA1 hash: d71d0fde68274b567e987d7ce669a57b6386e20e
MD5 hash: 979552177f1f0e41b836a0a83466f6a4
humanhash: potato-bluebird-green-asparagus
File name:979552177f1f0e41b836a0a83466f6a4
Download: download sample
Signature CoinMiner
Create hunting rule
File size:46'080 bytes
First seen:2021-08-07 16:03:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 768:mlsuAVq7Mmx5ISZE6S1QVmCSvzCqYnxTHNfwCGzvWwBxJY4zrF9gdK:huAVyzS1QcCSelxTZwCGzugNrF9gdK
Threatray 112 similar samples on MalwareBazaar
TLSH T12723F12C37EC5801F062DFB52DF223D136BEFB6BA543956E201423789D92588F5A1B93
Reporter zbetcheckin
Tags:CoinMiner exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
247
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://dropmefiles.com/aLXUB
Verdict:
Malicious activity
Analysis date:
2021-08-07 09:58:07 UTC
Tags:
loader evasion
Link:
https://app.any.run/tasks/ba6fa0fb-c9a9-4261-a189-031c1266cccf

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/177167/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Launching a process
Sending a custom TCP request
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Creating a process with a hidden window
Creating a file
Creating a process from a recently created file
Creating a file in the system32 directory
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Unauthorized injection to a system process
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6206193c-0218-43f6-b0ad-580434c571f4
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/828647
Signature
Adds a directory exclusion to Windows Defender
Drops executables to the windows directory (C:\Windows) and starts them
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Script Execution From Temp Folder
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 461078 Sample: HD8xVW7T24 Startdate: 07/08/2021 Architecture: WINDOWS Score: 84 77 Multi AV Scanner detection for submitted file 2->77 79 Machine Learning detection for sample 2->79 81 Sigma detected: Powershell Defender Exclusion 2->81 83 Sigma detected: Suspicious Script Execution From Temp Folder 2->83 10 HD8xVW7T24.exe 5 2->10         started        14 services64.exe 2 2->14         started        process3 file4 73 C:\Users\user\AppData\Local\...\svchost64.exe, PE32+ 10->73 dropped 75 C:\Users\user\AppData\...\HD8xVW7T24.exe.log, ASCII 10->75 dropped 97 Adds a directory exclusion to Windows Defender 10->97 16 cmd.exe 1 10->16         started        18 cmd.exe 1 10->18         started        21 cmd.exe 14->21         started        signatures5 process6 signatures7 23 svchost64.exe 6 16->23         started        27 conhost.exe 16->27         started        85 Uses schtasks.exe or at.exe to add and modify task schedules 18->85 87 Adds a directory exclusion to Windows Defender 18->87 29 powershell.exe 23 18->29         started        31 conhost.exe 18->31         started        39 3 other processes 18->39 33 conhost.exe 21->33         started        35 powershell.exe 21->35         started        37 powershell.exe 21->37         started        41 2 other processes 21->41 process8 file9 69 C:\Windows\System32\services64.exe, PE32+ 23->69 dropped 71 C:\Windows\...\services64.exe:Zone.Identifier, ASCII 23->71 dropped 91 Multi AV Scanner detection for dropped file 23->91 93 Machine Learning detection for dropped file 23->93 95 Drops executables to the windows directory (C:\Windows) and starts them 23->95 43 services64.exe 3 23->43         started        46 cmd.exe 1 23->46         started        48 cmd.exe 1 23->48         started        signatures10 process11 signatures12 99 Multi AV Scanner detection for dropped file 43->99 101 Machine Learning detection for dropped file 43->101 103 Adds a directory exclusion to Windows Defender 43->103 50 cmd.exe 1 43->50         started        53 conhost.exe 46->53         started        55 choice.exe 1 46->55         started        57 conhost.exe 48->57         started        59 schtasks.exe 1 48->59         started        process13 signatures14 89 Adds a directory exclusion to Windows Defender 50->89 61 powershell.exe 22 50->61         started        63 conhost.exe 50->63         started        65 powershell.exe 50->65         started        67 2 other processes 50->67 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef25bb229ec8ca7d7b2e3d4e23036b74bdc8b9154bb4c5b532e7ea2a0a7c8ee6/
Threat name:
ByteCode-MSIL.Trojan.Tasker
Create hunting rule
Status:
Malicious
First seen:
2021-08-07 16:04:05 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=54s3wiu6zdfh26zohvhcga3los64roivjo2mlnjs47vcuct4r3ta._file
Verdict:
malicious
Similar samples:
24ea17a2c73edd5668c90344844c696e8bfddb72bf605feeea1a0dcc054f246f
CoinMiner
275cd3c09afaacc06adbdbcd5c638b5894c81eca008446454864b537f54593bd
CoinMiner
2d6424f4611e623f05560bcccc43c87819cb60488e0ada6f0eae17528f33a3b9
CoinMiner
2dfdc495160b8492466dfe6108702ea44b5a7ff1b8d439d6a6dc9af9359a0838
CoinMiner
561b3cf57b33e115cabbb36756579d7fb15ae90656b826cbd286673b2eaef227
CoinMiner
d96b12587bf342e3a99493402b3ede54ef5b3f31ff4b09a6710f1443a66f2683
CoinMiner
e481e934466d3e768442331a3c3af50c4d430b6ed14059afbe661925338ef531
CoinMiner
eef5d903a7e1eb2b6ecd93316efad2bf00def8fd4466dae0157615726a46ba4b
CoinMiner
+ 102 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig miner
Link:
https://tria.ge/reports/210807-jgnjmfdsgj/
Behaviour
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
XMRig Miner Payload
xmrig
Unpacked files
SH256 hash:
ef25bb229ec8ca7d7b2e3d4e23036b74bdc8b9154bb4c5b532e7ea2a0a7c8ee6
MD5 hash:
979552177f1f0e41b836a0a83466f6a4
SHA1 hash:
d71d0fde68274b567e987d7ce669a57b6386e20e
Link:
https://www.unpac.me/results/4cf4cb38-a527-4626-ab1d-4271e94c00ab/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ef25bb229ec8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ef25bb229ec8ca7d7b2e3d4e23036b74bdc8b9154bb4c5b532e7ea2a0a7c8ee6

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:MALWARE_Win_CoinMiner02
Create hunting rule
Author:ditekSHen
Description:Detects coinmining malware
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:PUA_WIN_XMRIG_CryptoCoin_Miner_Dec20
Create hunting rule
Author:Florian Roth
Description:Detects XMRIG crypto coin miners
Reference:https://www.intezer.com/blog/research/new-golang-worm-drops-xmrig-miner-on-servers/

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

CoinMiner

Executable exe ef25bb229ec8ca7d7b2e3d4e23036b74bdc8b9154bb4c5b532e7ea2a0a7c8ee6

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1514193/
Cape
Cape
https://www.capesandbox.com/analysis/177167/

Comments


Avatar
zbet commented on 2021-08-07 16:03:40 UTC

url : hxxp://83.220.173.160/Datafile64.exe