MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb1afa6e7bae619514d7d2ff10a9cc96a03b5e10640059f592c7e5f3d6093d31. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fb1afa6e7bae619514d7d2ff10a9cc96a03b5e10640059f592c7e5f3d6093d31
SHA3-384 hash: e5c6f388b67a6b40c72fb9aa32f45d6d7e089b269ca30ce33d0ad754de9db5789584768af6ab4b5d7e15f461f180f6d4
SHA1 hash: cd76636de1d8fdda05909ec70a3022c865222df1
MD5 hash: 0292d736142e81cbc35310de782b78ba
humanhash: glucose-august-butter-mockingbird
File name:SecuriteInfo.com.Trojan.DownLoader44.61081.24083.13406
Download: download sample
Signature NanoCore
Create hunting rule
File size:175'616 bytes
First seen:2022-05-25 04:34:12 UTC
Last seen:2022-05-25 15:03:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 192:zvotLU+WmFvhAdpNtY6+OK9PFLVk+7Y/K6GDDDDDDDD/b3bnbZbZbZxdxdxdxdJ2:T1+hv2zNtYT/9hko6LMdxFY0x0eY+
Threatray 17'425 similar samples on MalwareBazaar
TLSH T13F042C889D5CC61CEE2AFAB10833D170CE2AFFCABA4C9985E044FBD6397512146DD935
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b9dc8cccdeded9b8 (12 x AgentTesla, 7 x Formbook, 7 x NanoCore)
Reporter SecuriteInfoCom
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
4
# of downloads :
293
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Trojan.DownLoader44.61081.24083.13406
Verdict:
Malicious activity
Analysis date:
2022-05-25 04:55:59 UTC
Tags:
opendir trojan rat agenttesla stealer nanocore
Link:
https://app.any.run/tasks/a7dbbb1d-715a-4fe4-b12f-462a1645bfea

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/274340/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/628db1d83ec49f83a6c97027/reports/a121fd97-9ee9-4826-95bb-5b9f0d8726f3/overview
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:
AZORult
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8cce68da-b4c2-4e8c-831b-6d67a72be893
Result
Threat name:
Nanocore, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1001252
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for URL or domain
Creates multiple autostart registry keys
Detected Nanocore Rat
Document exploit detected (process start blacklist hit)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects files into Windows application
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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)
Sigma detected: NanoCore
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 633743 Sample: SecuriteInfo.com.Trojan.Dow... Startdate: 25/05/2022 Architecture: WINDOWS Score: 100 75 Snort IDS alert for network traffic 2->75 77 Multi AV Scanner detection for domain / URL 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 9 other signatures 2->81 8 SecuriteInfo.com.Trojan.DownLoader44.61081.24083.exe 16 8 2->8         started        13 excel.exe 2->13         started        15 Rookyw.exe 14 3 2->15         started        17 Rookyw.exe 3 2->17         started        process3 dnsIp4 73 3.70.157.79, 49733, 49764, 49769 AMAZON-02US United States 8->73 63 C:\Users\user\AppData\Roaming\...\Rookyw.exe, PE32 8->63 dropped 65 C:\Users\...\Ipbruqkbzhdscwqazgobiikm.exe, PE32 8->65 dropped 67 SecuriteInfo.com.T...61081.24083.exe.log, ASCII 8->67 dropped 105 Creates multiple autostart registry keys 8->105 107 Writes to foreign memory regions 8->107 109 Allocates memory in foreign processes 8->109 111 Injects a PE file into a foreign processes 8->111 19 InstallUtil.exe 8->19         started        24 Ipbruqkbzhdscwqazgobiikm.exe 14 4 8->24         started        26 InstallUtil.exe 8->26         started        28 cmd.exe 1 8->28         started        113 Document exploit detected (process start blacklist hit) 13->113 115 Injects files into Windows application 13->115 30 conhost.exe 13->30         started        117 Multi AV Scanner detection for dropped file 15->117 32 cmd.exe 1 15->32         started        34 cmd.exe 17->34         started        file5 signatures6 process7 dnsIp8 69 85.202.169.159, 49773, 80 GUDAEV-ASRU Netherlands 19->69 59 C:\Users\user\AppData\Roaming\...\excel.exe, PE32 19->59 dropped 83 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->83 85 Tries to steal Mail credentials (via file / registry access) 19->85 87 Creates multiple autostart registry keys 19->87 101 3 other signatures 19->101 89 Multi AV Scanner detection for dropped file 24->89 91 Writes to foreign memory regions 24->91 93 Allocates memory in foreign processes 24->93 95 Injects a PE file into a foreign processes 24->95 36 InstallUtil.exe 24->36         started        41 cmd.exe 24->41         started        97 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 26->97 99 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 26->99 43 conhost.exe 28->43         started        45 timeout.exe 1 28->45         started        47 conhost.exe 32->47         started        49 timeout.exe 1 32->49         started        51 conhost.exe 34->51         started        53 timeout.exe 34->53         started        file9 signatures10 process11 dnsIp12 71 74.201.28.111, 141, 49779, 49781 DEDIPATH-LLCUS United States 36->71 61 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 36->61 dropped 103 Hides that the sample has been downloaded from the Internet (zone.identifier) 36->103 55 conhost.exe 41->55         started        57 timeout.exe 41->57         started        file13 signatures14 process15
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fb1afa6e7bae619514d7d2ff10a9cc96a03b5e10640059f592c7e5f3d6093d31/
Threat name:
ByteCode-MSIL.Trojan.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2022-05-25 01:50:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7mnpu3t3vzqzkfgx2l7rbkoms2qdwxqqmqaft5msy7s7hvqjhuyq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
00ab87ff45ff5e46a743254b459c58643c411fdab02b1ff908e4e323dfb75fb1
NanoCore
12debb5b625d08f6bc4dd6160435cfde52a33c11dccd4b10fa07c225aba9565b
NanoCore
191e0b6b997739d71b92939ca736a43be3e742aa1b8baf025b5f9114f1f3e7ae
NanoCore
3c42490be13ea791feda53e89f19abc2c4326cc581e9f7fb4040340e38b5a7c6
NanoCore
4097d7bdbe0b5665b4e59568b0eafc0d5514b36245445deb38e88911ed90417c
NanoCore
4dec45a4095ce92e7bc46962358c73f3e52b57a13128947fcebeeed3d866ff5e
NanoCore
b64081fc4a7dc5e73ab017b1f0453c27d5e6040134dd269bc01de45cad3713b7
NanoCore
b789ea800e24253ead1c150643aa729e7b7d5253bf6319aa4321680c615b8ec2
NanoCore
c5df359c7b21d6544c166cf142071d68a028f429ff47e80b8e855b9bc02decfd
NanoCore
+ 17'415 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:nanocore collection keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/220525-e7nw6agea6/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
AgentTesla
NanoCore
suricata: ET MALWARE AgentTesla Communicating with CnC Server
Malware Config
C2 Extraction:
http://85.202.169.159/fireworks/inc/4f7f5097dba42e.php
74.201.28.111:141
Unpacked files
SH256 hash:
fb1afa6e7bae619514d7d2ff10a9cc96a03b5e10640059f592c7e5f3d6093d31
MD5 hash:
0292d736142e81cbc35310de782b78ba
SHA1 hash:
cd76636de1d8fdda05909ec70a3022c865222df1
Link:
https://www.unpac.me/results/4874c61c-cc0a-484b-adda-b8b3de022ca4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/fb1afa6e7bae619514d7d2ff10a9cc96a03b5e10640059f592c7e5f3d6093d31

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

NanoCore

img e3e66e194d51dc7c2cf1ec6dc7792c3e695199050697f5378ea4902f2d1edd14

NanoCore

Executable exe fb1afa6e7bae619514d7d2ff10a9cc96a03b5e10640059f592c7e5f3d6093d31

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/274340/
  
Dropped by
SHA256 e3e66e194d51dc7c2cf1ec6dc7792c3e695199050697f5378ea4902f2d1edd14
  
Dropped by
MD5 c1bd2ac3cb86dc6119b6c6b068567fed

Comments