MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c438704d1c73d3449ce3c2e5de4fa32747d5e61f20e15c4f9da0c006d656c520. 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


NanoCore


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c438704d1c73d3449ce3c2e5de4fa32747d5e61f20e15c4f9da0c006d656c520
SHA3-384 hash: 3891ec3774082f875397deb5de5d6ed85026811b6842b7b0dbf0e38e0d3b9a4e0ae6f97ec18fbb67a91ddac189391201
SHA1 hash: 3fec5919b70712c57f6bbba72afc3cd0713f8417
MD5 hash: 6397a3cb446e1c2b3bbbee42c8184d30
humanhash: echo-fourteen-river-north
File name:6397a3cb446e1c2b3bbbee42c8184d30
Download: download sample
Signature NanoCore
Create hunting rule
File size:681'984 bytes
First seen:2020-11-17 12:24:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:3eywFTSlcu+Zypv5GK7gRgtVY8yPtfEv9dIG6zMf0FwwAGb:OywFTSNIymK714BEvEL4flhGb
Threatray 527 similar samples on MalwareBazaar
TLSH 6EE4C021B74EFEF5D67E7AF0C00520924235B6C24EA3613BDF1E7E889CE1949444AAF5
Reporter seifreed
Tags:NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.276.31666.29912.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending an HTTP GET request
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Reading critical registry keys
Sending a custom TCP request
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
DNS request
Launching a process
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Enabling autorun
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/539414
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Injects a PE file into a foreign processes
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)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 318804 Sample: 5dj4XCE86M Startdate: 17/11/2020 Architecture: WINDOWS Score: 100 58 Antivirus detection for dropped file 2->58 60 Antivirus / Scanner detection for submitted sample 2->60 62 Multi AV Scanner detection for dropped file 2->62 64 8 other signatures 2->64 8 5dj4XCE86M.exe 8 2->8         started        process3 file4 44 C:\Users\user\AppData\Local\Temp\svhost.exe, PE32 8->44 dropped 46 C:\Users\user\AppData\Local\...\name.exe.lnk, MS 8->46 dropped 48 C:\Users\user\AppData\Local\...\name.exe.bat, ASCII 8->48 dropped 50 C:\Users\user\AppData\...\5dj4XCE86M.exe.log, ASCII 8->50 dropped 66 Writes to foreign memory regions 8->66 68 Allocates memory in foreign processes 8->68 70 Injects a PE file into a foreign processes 8->70 12 svhost.exe 15 2 8->12         started        16 cmd.exe 1 8->16         started        18 cmd.exe 3 8->18         started        21 2 other processes 8->21 signatures5 process6 dnsIp7 52 bh-58.webhostbox.net 199.79.63.24, 49720, 587 PUBLIC-DOMAIN-REGISTRYUS United States 12->52 54 elb097307-934924932.us-east-1.elb.amazonaws.com 54.235.83.248, 49715, 80 AMAZON-AESUS United States 12->54 56 2 other IPs or domains 12->56 74 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->74 76 Tries to steal Mail credentials (via file access) 12->76 78 Tries to harvest and steal browser information (history, passwords, etc) 12->78 80 Adds a directory exclusion to Windows Defender 12->80 23 powershell.exe 26 12->23         started        25 reg.exe 1 1 16->25         started        28 conhost.exe 16->28         started        40 C:\Users\user\AppData\Local\Temp\...\name.exe, PE32 18->40 dropped 30 conhost.exe 18->30         started        42 C:\Users\user\...\name.exe:Zone.Identifier, ASCII 21->42 dropped 32 conhost.exe 21->32         started        34 conhost.exe 21->34         started        36 timeout.exe 1 21->36         started        file8 signatures9 process10 signatures11 38 conhost.exe 23->38         started        72 Creates an undocumented autostart registry key 25->72 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c438704d1c73d3449ce3c2e5de4fa32747d5e61f20e15c4f9da0c006d656c520/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-11-11 05:44:40 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yq4hati4opjujhhdyls54t5de5d5lzq7edqvyt45udaanvswyuqa._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
14dba4e8c0740eb49fe53948d4158b4d8a32e2d430fbcf7d0b0f7c9033f98808
NanoCore
2fea8f7c727460dfd943dce7f9bb051f188f37a0150a132039a1892f18749ff3
NanoCore
70caf501b061da2729d33d4b0c5e9b9c58bc554cdbdddef16f7e057ea346808c
NanoCore
72d563adc0f2792226cf08cdf8e14048d0887ef22d4dbe74083fdeb43e7949d0
NanoCore
a2b0e9c1ea03a3a538fe9ef7f8e6dbf4c08feba8560e238e29fce0dd2f2e144b
NanoCore
a8a0ccb327ebc5fce7c9a2086cea22103467000ecda8f66b57c4af0b9536e81e
NanoCore
aa02fea6a68d226223ecaf7220d64ea8fd7bcb4c136133d00c88ef94e78b954b
NanoCore
b4da98102844534fa2c6542fd79804d88e197e821764c78e31741b853aa5238e
NanoCore
cf0a2b8b7dec5f0d797d99927037af3f61146da547bf599127636a24753c8caf
NanoCore
fc8f5c635abe5534833683141ae57470c09a246eb290895ce748d1bede405c25
NanoCore
+ 517 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201117-rz4zqeh9yn/
Behaviour
Delays execution with timeout.exe
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
c438704d1c73d3449ce3c2e5de4fa32747d5e61f20e15c4f9da0c006d656c520
MD5 hash:
6397a3cb446e1c2b3bbbee42c8184d30
SHA1 hash:
3fec5919b70712c57f6bbba72afc3cd0713f8417
Link:
https://www.unpac.me/results/6aa44204-9b8d-4d6e-8a6d-7b533e1d5306/
SH256 hash:
a7aeccd2476996dc2560dce32e64a30ee1548b50613179cd09dbd40af78a6b24
MD5 hash:
d9a7c425884fbfedaa240a01e80c4f0f
SHA1 hash:
8088f11da7122f5b5456921433f9e4bf5e4eff14
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/6aa44204-9b8d-4d6e-8a6d-7b533e1d5306/
Parent samples :
cf0a2b8b7dec5f0d797d99927037af3f61146da547bf599127636a24753c8caf
31a02cdd0d7e578a470fb434aafab1f8005da0dc356bce10f38c5e617b659ae3
14dba4e8c0740eb49fe53948d4158b4d8a32e2d430fbcf7d0b0f7c9033f98808
b3e57c1a313d01a7faea074079db176b05339299a907a7bda05432d567739205
c438704d1c73d3449ce3c2e5de4fa32747d5e61f20e15c4f9da0c006d656c520
SH256 hash:
0051cc3f6f36516b74a2849745612ce779dfef72a8fe2017b880545e514a8234
MD5 hash:
f36f9797e5a41b37f0969cb3e7408a52
SHA1 hash:
184ae961685284c02368f1e48727506bd5dae11b
Link:
https://www.unpac.me/results/6aa44204-9b8d-4d6e-8a6d-7b533e1d5306/
SH256 hash:
a9bdf8ff2cf545d3c786350fb5850a44b1fed970637c1cc6894f0f612a3d6d33
MD5 hash:
6051579116be38069e62aba2a2fed804
SHA1 hash:
e68b369bc131a32d5233ee395f47b337c2469042
Link:
https://www.unpac.me/results/6aa44204-9b8d-4d6e-8a6d-7b533e1d5306/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:win_masslogger_w0
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.

  
Delivery method
Other

Comments