MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c6117524f5e25ef7de2eaa1e4693be4f0ebdc1548b3a8b170f96c4b1aeeb57c2. 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


MassLogger


Vendor detections: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c6117524f5e25ef7de2eaa1e4693be4f0ebdc1548b3a8b170f96c4b1aeeb57c2
SHA3-384 hash: 17384fa9bba782c38c110c974ad31adb35a787fc917b7eb424a0b7049e5dec64a906c87a1c21a69ac6f89aa63270a653
SHA1 hash: 31b2fa63b6d1ed18267eba342e37f41830ac9337
MD5 hash: 938dcd65814e49ccb1a8cfa5100923f7
humanhash: east-hydrogen-asparagus-eighteen
File name:ekstre.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'264'128 bytes
First seen:2020-07-17 16:34:59 UTC
Last seen:2020-07-17 18:10:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:KwIXRLT9i/mFbh5HxYEEsxAk6nmTlwnX:M59i/rEvAtei
Threatray 682 similar samples on MalwareBazaar
TLSH 3745083A75938854C559477AC079A8C1A7B276863792DB1F30C713885E03BDFBA078AF
Reporter abuse_ch
Tags:exe geo MassLogger TUR ZiraatBank


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: ileti.ziraatbank.com.tr
Sending IP: 45.138.172.58
From: ZIRAAT BANKASI <zb.ekstre@ileti.ziraatbank.com.tr>
Reply-To: ZIRAAT BANKASI <zb.ekstre@ileti.ziraatbank.com.tr>
Subject: T.C. Ziraat Bankası Hesap Ekstresi
Attachment: ekstre.r00 (contains "ekstre.exe")

MassLogger SMTP exfil server:
mail.kaanmakina.com.tr:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
97
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/27491/
Detection(s):
SecuriteInfo.com.MSIL.GenKryptik.EOKT.16498.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Unauthorized injection to a recently created process
Connection attempt to an infection source
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/389172
Signature
Creates an autostart registry key pointing to binary in C:\Windows
Creates executable files without a name
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246780 Sample: ekstre.exe Startdate: 19/07/2020 Architecture: WINDOWS Score: 100 40 Found malware configuration 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected MassLogger RAT 2->44 46 3 other signatures 2->46 7 ekstre.exe 5 2->7         started        11 pcalua.exe 1 1 2->11         started        process3 file4 26 C:\Users\user\Desktop\.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 7->28 dropped 30 C:\Users\user\Desktop\.exe:Zone.Identifier, ASCII 7->30 dropped 32 C:\Users\user\AppData\...\ekstre.exe.log, ASCII 7->32 dropped 56 Creates executable files without a name 7->56 13 .exe 1 7->13         started        16 cmd.exe 1 7->16         started        signatures5 process6 signatures7 58 Multi AV Scanner detection for dropped file 13->58 60 Machine Learning detection for dropped file 13->60 18 RegAsm.exe 15 5 13->18         started        22 reg.exe 1 1 16->22         started        24 conhost.exe 16->24         started        process8 dnsIp9 34 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.213.140, 49720, 80 AMAZON-AESUS United States 18->34 36 nagano-19599.herokussl.com 18->36 38 api.ipify.org 18->38 48 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 18->48 50 Tries to steal Mail credentials (via file access) 18->50 52 Tries to harvest and steal browser information (history, passwords, etc) 18->52 54 Creates an autostart registry key pointing to binary in C:\Windows 22->54 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c6117524f5e25ef7de2eaa1e4693be4f0ebdc1548b3a8b170f96c4b1aeeb57c2/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-17 16:36:07 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yyixkjhv4jpppxrovipene56j4hl3qkurm5iwfyps3cldlxlk7ba._file
Verdict:
unknown
Similar samples:
1b0e17e568860f443d28cd430f26925fbb7bc31ee55e287dd16be90274ed33c9
MassLogger
2e5c6ecfef94f9922f152344b96041b85bf2dc01136e921e2d8c644d903b708d
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3f6a4df2b41a71afe07a307c62bd00cc81b42e561fb551d185baf7141867484e
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3f97dfbae448b3eb28d6f08f666029037d890dc94dbce0e372b4dd2a63fd037f
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452413e4c1ae53679f676ea7e97a7f98697ee833896c6119bc6d8bf15cf06fba
MassLogger
5c4a427bdae2125f85488a6a18626bdf99cc9b065f600faa2a2a9cf014e24e6c
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921535a6ad60e212e6628f7ae40b356db57c7be4a70c4616d032226fca211523
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a543d22347f54870ae7dc14964a0242bfee089214c900abe01d1da6e2fcea6cc
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cc1bbef42692db18e756a3d2498f59fbfcaacaf32c38f2a4e6a5cf1a6b4c67a1
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edd4ed935c2607a173722c89b329ad9dbc39d1a6204fa8ed22987f5df7955838
MassLogger
+ 672 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware spyware stealer family:masslogger persistence
Link:
https://tria.ge/reports/200717-wm4qbllxes/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
MassLogger log file
MassLogger
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c6117524f5e25ef7de2eaa1e4693be4f0ebdc1548b3a8b170f96c4b1aeeb57c2

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:masslogger_gcch
Create hunting rule
Author:govcert_ch

File information

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

Malspam

MassLogger

r00 b8edd2a225f85a1067d3a7f96595e35701d5147dcc39463e385d5261dfbea5c7

MassLogger

Executable exe c6117524f5e25ef7de2eaa1e4693be4f0ebdc1548b3a8b170f96c4b1aeeb57c2

(this sample)

  
Dropped by
MD5 c0cce2bf10317f848293ae4a26f132d9
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 b8edd2a225f85a1067d3a7f96595e35701d5147dcc39463e385d5261dfbea5c7
Cape
Cape
https://www.capesandbox.com/analysis/27491/

Comments