MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c24b19343162f2b4af07548396a889ff6d6188f263f549677ca423cbd89d0107. 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: 10


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

SHA256 hash: c24b19343162f2b4af07548396a889ff6d6188f263f549677ca423cbd89d0107
SHA3-384 hash: 096363e439eac9f54e5f013dac936e09ef55f94ebe46eccea1ac244a5164dab3ea25c56d5dae97cd6773958b49096bc9
SHA1 hash: 0debe9d35971686770cf98809ddf841e413cae0a
MD5 hash: 6541da5a3a5be6cf45a7c0851c4cdc75
humanhash: pluto-earth-solar-kitten
File name:Transfer slip.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:495'616 bytes
First seen:2020-08-06 05:54:32 UTC
Last seen:2020-08-06 12:34:39 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 12288:0sroz6vPXOHQByHulmyzCCrgaCqj+p+8xaRErUqTJ:br9+HQB8u4yzCCrgpqSp+82ETJ
Threatray 10'626 similar samples on MalwareBazaar
TLSH 43B4020FF584969DCE2E8570C863C1ACD2B3583B5852DE4AB8D9B35E067E3D2B90149F
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: scmt.gov.iq
Sending IP: 37.48.85.227
From: insurance <insurance@scmt.gov.iq>
Subject: Payment Transfer slip
Attachment: Transfer slip.zip (contains "Transfer slip.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/40094/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Creating a window
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Sending a UDP request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Enabling autorun
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/412179
Signature
.NET source code contains potential unpacker
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 258341 Sample: Transfer slip.exe Startdate: 06/08/2020 Architecture: WINDOWS Score: 84 40 Yara detected AgentTesla 2->40 42 .NET source code contains potential unpacker 2->42 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 2->44 46 3 other signatures 2->46 7 Transfer slip.exe 7 2->7         started        process3 file4 34 C:\Users\user\AppData\Local\...\name.exe.lnk, MS 7->34 dropped 36 C:\Users\user\...\Transfer slip.exe.log, ASCII 7->36 dropped 38 C:\Users\user\AppData\Local\Temp\svhost.exe, PE32 7->38 dropped 50 Injects a PE file into a foreign processes 7->50 11 Transfer slip.exe 2 7->11         started        14 cmd.exe 1 7->14         started        16 cmd.exe 3 7->16         started        19 cmd.exe 1 7->19         started        signatures5 process6 file7 52 Tries to steal Mail credentials (via file access) 11->52 54 Tries to harvest and steal browser information (history, passwords, etc) 11->54 21 reg.exe 1 1 14->21         started        24 conhost.exe 14->24         started        30 C:\Users\user\AppData\Local\Temp\...\name.exe, PE32 16->30 dropped 26 conhost.exe 16->26         started        32 C:\Users\user\...\name.exe:Zone.Identifier, ASCII 19->32 dropped 28 conhost.exe 19->28         started        signatures8 process9 signatures10 48 Creates an undocumented autostart registry key 21->48
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c24b19343162f2b4af07548396a889ff6d6188f263f549677ca423cbd89d0107/
Threat name:
ByteCode-MSIL.Trojan.SmartAssembly
Create hunting rule
Status:
Malicious
First seen:
2020-08-06 05:56:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yjfrsnbrmlzljlyhksbznkej75wwdchsmp2usz34uqr4xwe5aedq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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NanoCore
+ 10'616 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200806-zdj5xxmjj6/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
NTFS ADS
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Loads dropped DLL
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
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/c24b19343162f2b4af07548396a889ff6d6188f263f549677ca423cbd89d0107

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

NanoCore

zip 35027f1bd4719815df11a445adc85d0635f1c4ecbc17abed1046890864d2c56d

NanoCore

Executable exe c24b19343162f2b4af07548396a889ff6d6188f263f549677ca423cbd89d0107

(this sample)

  
Dropped by
MD5 46998fbe630fe52152bee67464ae5676
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/40094/
  
Dropped by
SHA256 35027f1bd4719815df11a445adc85d0635f1c4ecbc17abed1046890864d2c56d

Comments