MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3e57c1a313d01a7faea074079db176b05339299a907a7bda05432d567739205. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3e57c1a313d01a7faea074079db176b05339299a907a7bda05432d567739205
SHA3-384 hash: 3feae38734ffb9497dc61e0bdf372a50189ad5e8799e0dcad62c4fd86320285b3a1b55ba567634ccd74293d8f13263a6
SHA1 hash: b827ce4336a065443b5fa188d766ef02deb8338f
MD5 hash: 89afd1d156d60609549ac229f307b540
humanhash: nevada-michigan-michigan-mockingbird
File name:b3e57c1a313d01a7faea074079db176b05339299a907a7bda05432d567739205
Download: download sample
Signature NanoCore
Create hunting rule
File size:656'896 bytes
First seen:2020-11-10 11:15:35 UTC
Last seen:2024-07-24 20:33:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:k8pakyG7dOjSa9s4A2K3PJrnaikT8xmcSndd572Urm+hSmI/O+MNRi5+70o:VLyG7d3a9s4Ar/dwDco71vtZGO+AM5+X
Threatray 509 similar samples on MalwareBazaar
TLSH E3D4D0313F84FE74E07EA530406625EE0023BADA9FC3A19F5F46BC6A4DD7886145EAD1
Reporter seifreed
Tags:NanoCore

Intelligence

File Origin
# of uploads :
3
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
DNS request
Creating a file
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Launching a process
Creating a file in the %AppData% subdirectories
Creating a window
Reading critical registry keys
Sending a custom TCP request
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
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.
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/529909
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary contains a suspicious time stamp
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)
Sigma detected: Add file from suspicious location to autostart registry
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: 314052 Sample: 14RP4w9CuA Startdate: 11/11/2020 Architecture: WINDOWS Score: 100 60 Antivirus detection for dropped file 2->60 62 Antivirus / Scanner detection for submitted sample 2->62 64 Multi AV Scanner detection for dropped file 2->64 66 12 other signatures 2->66 8 14RP4w9CuA.exe 11 2->8         started        process3 file4 46 C:\Users\user\AppData\Roaming\tmp.exe, PE32 8->46 dropped 48 C:\Users\user\AppData\Local\Temp\svhost.exe, PE32 8->48 dropped 50 C:\Users\user\AppData\...\name.exe.lnk, MS 8->50 dropped 52 2 other malicious files 8->52 dropped 68 Writes to foreign memory regions 8->68 70 Allocates memory in foreign processes 8->70 72 Injects a PE file into a foreign processes 8->72 12 tmp.exe 15 2 8->12         started        16 cmd.exe 1 8->16         started        18 cmd.exe 3 8->18         started        21 4 other processes 8->21 signatures5 process6 dnsIp7 54 bh-58.webhostbox.net 199.79.63.24, 49720, 587 PUBLIC-DOMAIN-REGISTRYUS United States 12->54 56 elb097307-934924932.us-east-1.elb.amazonaws.com 184.73.247.141, 49716, 80 AMAZON-AESUS United States 12->56 58 3 other IPs or domains 12->58 76 Antivirus detection for dropped file 12->76 78 Multi AV Scanner detection for dropped file 12->78 80 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->80 82 4 other signatures 12->82 23 powershell.exe 26 12->23         started        25 reg.exe 1 1 16->25         started        28 conhost.exe 16->28         started        42 C:\Users\user\AppData\Roaming\...\name.exe, PE32 18->42 dropped 30 conhost.exe 18->30         started        44 C:\Users\user\...\name.exe:Zone.Identifier, ASCII 21->44 dropped 32 conhost.exe 21->32         started        34 conhost.exe 21->34         started        36 conhost.exe 21->36         started        38 timeout.exe 1 21->38         started        file8 signatures9 process10 signatures11 40 conhost.exe 23->40         started        74 Creates an undocumented autostart registry key 25->74 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3e57c1a313d01a7faea074079db176b05339299a907a7bda05432d567739205/
Threat name:
ByteCode-MSIL.Trojan.BMassKeyLogger
Create hunting rule
Status:
Malicious
First seen:
2020-11-08 10:39:12 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wpsxygrrhua2p6xka5ahtwyxnmctheuzved2ppnakqznkz3tsicq._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
+ 499 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201110-f72s76frrj/
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:
a7aeccd2476996dc2560dce32e64a30ee1548b50613179cd09dbd40af78a6b24
MD5 hash:
d9a7c425884fbfedaa240a01e80c4f0f
SHA1 hash:
8088f11da7122f5b5456921433f9e4bf5e4eff14
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/43127374-714b-45e0-8e33-32c386aa6383/
Parent samples :
cf0a2b8b7dec5f0d797d99927037af3f61146da547bf599127636a24753c8caf
31a02cdd0d7e578a470fb434aafab1f8005da0dc356bce10f38c5e617b659ae3
14dba4e8c0740eb49fe53948d4158b4d8a32e2d430fbcf7d0b0f7c9033f98808
b3e57c1a313d01a7faea074079db176b05339299a907a7bda05432d567739205
c438704d1c73d3449ce3c2e5de4fa32747d5e61f20e15c4f9da0c006d656c520
SH256 hash:
1c1a9ce955a7631fcbd4664d7d6582ed12f0a02e8f9238a1b95b6b691a7a005a
MD5 hash:
cdeec69e1cf032e5c193a203f451f8eb
SHA1 hash:
0445110e3e0c05517817321123f9cff4a6c18359
Link:
https://www.unpac.me/results/43127374-714b-45e0-8e33-32c386aa6383/
SH256 hash:
16a891f1435a9e68497e3fd02c6b30c5098a3017d8f104ba6f546a0de7a47071
MD5 hash:
ec42224d138ed051edcb8197708cc1e8
SHA1 hash:
5b187c547e94204895cfb4fac92b82591b08c7a1
Link:
https://www.unpac.me/results/43127374-714b-45e0-8e33-32c386aa6383/
SH256 hash:
b3e57c1a313d01a7faea074079db176b05339299a907a7bda05432d567739205
MD5 hash:
89afd1d156d60609549ac229f307b540
SHA1 hash:
b827ce4336a065443b5fa188d766ef02deb8338f
Link:
https://www.unpac.me/results/43127374-714b-45e0-8e33-32c386aa6383/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

  
Delivery method
Other

Comments