MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21281c48dd7beeb19d22aef27f4d77f79c550fc32acc69d4c3b91966cc8a048b. 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
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SHA256 hash: 21281c48dd7beeb19d22aef27f4d77f79c550fc32acc69d4c3b91966cc8a048b
SHA3-384 hash: dc185a9d39bee2c768de30c153f2f9d0929f337d1bbf7741818b3c0f423500fa9b258c30ae48fe3e26d53fe21c174a9b
SHA1 hash: ce0a21956e2c565e2e332a10f9c2b3346f8cf9b4
MD5 hash: f335a0ae9553c9acbee866d8990ee9e1
humanhash: one-fruit-hot-social
File name:SecuriteInfo.com.Trojan.Olock.1.12577.2405
Download: download sample
Signature NanoCore
Create hunting rule
File size:633'856 bytes
First seen:2022-07-02 05:36:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:XXev33Xzssx0R/qpLEs264ra+ziuVS6F1833Y6:Xuv3zss3xEHrR2A/6
TLSH T1E4D4CE346AB464E2E98A4FF69C028885BBF68C28AE03D7AED50831F505377E5D1445FF
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 10808a8c8c8a8010 (77 x Formbook, 51 x AgentTesla, 44 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
338
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/285059/
Detection(s):
SecuriteInfo.com.Trojan.Olock.1.12577.2405.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/62bfd97f82a67b6740e729f4/reports/c9a8a894-0332-464c-899f-b68ac112482b/overview
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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1a0dda13-8622-4882-8153-bd1565ba52ad
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1023476
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 655971 Sample: SecuriteInfo.com.Trojan.Olo... Startdate: 02/07/2022 Architecture: WINDOWS Score: 100 59 Snort IDS alert for network traffic 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Multi AV Scanner detection for dropped file 2->63 65 12 other signatures 2->65 8 SecuriteInfo.com.Trojan.Olock.1.12577.exe 7 2->8         started        12 SecuriteInfo.com.Trojan.Olock.1.12577.exe 4 2->12         started        process3 file4 45 C:\Users\user\AppData\...\jSJiBOvzra.exe, PE32 8->45 dropped 47 C:\Users\...\jSJiBOvzra.exe:Zone.Identifier, ASCII 8->47 dropped 49 C:\Users\user\AppData\Local\...\tmp1DF9.tmp, XML 8->49 dropped 51 SecuriteInfo.com.T...ock.1.12577.exe.log, ASCII 8->51 dropped 67 Uses schtasks.exe or at.exe to add and modify task schedules 8->67 69 Adds a directory exclusion to Windows Defender 8->69 71 Injects a PE file into a foreign processes 8->71 14 SecuriteInfo.com.Trojan.Olock.1.12577.exe 11 8->14         started        19 powershell.exe 25 8->19         started        21 schtasks.exe 1 8->21         started        23 SecuriteInfo.com.Trojan.Olock.1.12577.exe 8->23         started        25 powershell.exe 12->25         started        27 schtasks.exe 12->27         started        29 SecuriteInfo.com.Trojan.Olock.1.12577.exe 12->29         started        31 BackgroundTransferHost.exe 12->31         started        signatures5 process6 dnsIp7 55 config.linkpc.net 188.127.231.93, 3425, 49742, 49743 DHUBRU Russian Federation 14->55 53 C:\Users\user\AppData\Roaming\...\run.dat, data 14->53 dropped 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->57 33 schtasks.exe 1 14->33         started        35 conhost.exe 19->35         started        37 conhost.exe 21->37         started        39 conhost.exe 25->39         started        41 conhost.exe 27->41         started        file8 signatures9 process10 process11 43 conhost.exe 33->43         started       
Gathering data
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-07-02 03:20:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 25 (76.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eeubysg5ppxldhjcv3zh6tlx66ofkd6dflggtvgdxemwntekasfq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer suricata trojan
Link:
https://tria.ge/reports/220702-ga5vhsfbc3/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Checks computer location settings
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
config.linkpc.net:3425
Unpacked files
SH256 hash:
eead6991e5a918479f748946f6b7a64b2ebbd05d60f1385371d2ad981e66828b
MD5 hash:
647ecca40436b2bc7409b2d512313415
SHA1 hash:
82cb7be60ed51f5c7ea07af797d1bc4af265b83d
Link:
https://www.unpac.me/results/b3afbb3d-d047-4636-9ccb-94d34cf0047d/
SH256 hash:
243695e7081c87c1a14cfef0f89b75bd326edef6e651ef8b124fa8052dbee7a3
MD5 hash:
617a5e683eb9f142139a860b9fb84959
SHA1 hash:
49e92c99c8b0777dc93ec4f3b13fdc6de99e80b0
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/b3afbb3d-d047-4636-9ccb-94d34cf0047d/
Parent samples :
243695e7081c87c1a14cfef0f89b75bd326edef6e651ef8b124fa8052dbee7a3
21281c48dd7beeb19d22aef27f4d77f79c550fc32acc69d4c3b91966cc8a048b
02558d43b82050ac649bd7eff62a663dd98d141033f6cca56bc99bc811a059b8
0289b5c2829170ad4bb04daedbd3db5e56474415aee109a91a66ba9fa8a7a179
999c19bb669363e626ff41024ebe756e82a200fd874f8099dfbf8776360ccba2
0090148371c3a92d98212cda20209ca8d7b4e50c0c7829e6d17501d85c826743
c7e6e4337c88f196926b8833aac8b3c9b1759b657128da161ec2d279f1ef613e
SH256 hash:
0cb6aef1fa57d11408e47ae071485ef8f48c2982997b8d74b47a4151d85b978c
MD5 hash:
843aa6edf83bff7b61c6a5369ef41e95
SHA1 hash:
d1bfeec8eaac9a1dacf2f7062ce964d8e7d77085
Link:
https://www.unpac.me/results/b3afbb3d-d047-4636-9ccb-94d34cf0047d/
SH256 hash:
af5bfa54c5a2e5f4e3e0de45054d3f8cdf890bccff4440934c109bb761232a36
MD5 hash:
80af690eba03d53a6957cf7a76254f2b
SHA1 hash:
4ee557d274b7c0df251edd5d017f494fed9e5e62
Link:
https://www.unpac.me/results/b3afbb3d-d047-4636-9ccb-94d34cf0047d/
SH256 hash:
16b9fc4700292684bae0ef2da4a4f4b393103771e93c0b48747df8a24af40d59
MD5 hash:
12ae0e4078e6e9da25181468d72b7ef4
SHA1 hash:
3f88feb096debc12d2f72bac4dfe7e799c7bbf36
Link:
https://www.unpac.me/results/b3afbb3d-d047-4636-9ccb-94d34cf0047d/
SH256 hash:
21281c48dd7beeb19d22aef27f4d77f79c550fc32acc69d4c3b91966cc8a048b
MD5 hash:
f335a0ae9553c9acbee866d8990ee9e1
SHA1 hash:
ce0a21956e2c565e2e332a10f9c2b3346f8cf9b4
Link:
https://www.unpac.me/results/b3afbb3d-d047-4636-9ccb-94d34cf0047d/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/21281c48dd7b/report/overview.html
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: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.

Cape
Cape
https://www.capesandbox.com/analysis/285059/

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