MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4151897619823917cf3420046de0a8d3c0da19995acbcb134cc784250945d53a. 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 3 File information Comments
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SHA256 hash: 4151897619823917cf3420046de0a8d3c0da19995acbcb134cc784250945d53a
SHA3-384 hash: 5ebe9c490b8109772f0379bcb1e99928987ebb816c124a3e23530fa89a383e72fed3164470095a9de1c5a7ddfc035006
SHA1 hash: 27e4cff6374c24928b365a80aef85697025b2af3
MD5 hash: d3a6b2942804437bb23319f5df1e56c3
humanhash: harry-cold-stairway-michigan
File name:Scan-2021-huwaie-09567900.bat
Download: download sample
Signature NanoCore
Create hunting rule
File size:950'272 bytes
First seen:2021-08-07 00:51:10 UTC
Last seen:2021-08-07 02:03:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:X0I9AIw98hljilLI1hBd/+xF8oEHA8sBMxWrj8MNj:Ee+6lmi1hD+3+RdxYjlh
Threatray 3'009 similar samples on MalwareBazaar
TLSH T10A150291A6C45716C4AC207B0F3ADA7413F8AE091566C6C73ED87D573AFEFA706C0886
dhash icon 851a98b4909864c4 (58 x AgentTesla, 43 x Formbook, 34 x RedLineStealer)
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
463
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Scan-2021-huwaie-09567900.bat
Verdict:
Malicious activity
Analysis date:
2021-08-07 00:53:08 UTC
Tags:
evasion trojan snakekeylogger keylogger rat nanocore
Link:
https://app.any.run/tasks/8a44e848-1efd-445d-aad9-ba7033fab923

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/177093/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.986.21565.6817.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a process from a recently created file
DNS request
Creating a file in the %AppData% subdirectories
Connection attempt
Creating a file in the Program Files subdirectories
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Setting a global event handler for the keyboard
Enabling autorun by creating a file
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4b3c3947-c293-4f36-b161-dec297384128
Result
Threat name:
Nanocore Snake Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/828535
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Detected unpacking (overwrites its own PE header)
Found malware configuration
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
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
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 harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Yara detected Snake Keylogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 460966 Sample: Scan-2021-huwaie-09567900.bat Startdate: 07/08/2021 Architecture: WINDOWS Score: 100 60 send.one.com 2->60 72 Found malware configuration 2->72 74 Malicious sample detected (through community Yara rule) 2->74 76 Antivirus detection for dropped file 2->76 78 15 other signatures 2->78 10 Scan-2021-huwaie-09567900.exe 7 2->10         started        14 ikmerro nano.exe 2->14         started        16 dhcpmon.exe 2->16         started        18 dhcpmon.exe 2->18         started        signatures3 process4 file5 46 C:\Users\user\AppData\...\fiPVDuIushYm.exe, PE32 10->46 dropped 48 C:\Users\user\AppData\Local\...\tmpE23B.tmp, XML 10->48 dropped 50 C:\...\Scan-2021-huwaie-09567900.exe.log, ASCII 10->50 dropped 88 Uses schtasks.exe or at.exe to add and modify task schedules 10->88 90 Injects a PE file into a foreign processes 10->90 20 Scan-2021-huwaie-09567900.exe 3 10->20         started        23 schtasks.exe 1 10->23         started        52 C:\Users\user\...\ikmerro nano.exe.log, ASCII 14->52 dropped 54 C:\Users\user\AppData\...\dhcpmon.exe.log, ASCII 16->54 dropped signatures6 process7 file8 42 C:\Users\user\AppData\...\snake logger.exe, PE32 20->42 dropped 44 C:\Users\user\AppData\...\ikmerro nano.exe, PE32 20->44 dropped 25 snake logger.exe 14 2 20->25         started        29 ikmerro nano.exe 1 13 20->29         started        32 conhost.exe 23->32         started        process9 dnsIp10 62 checkip.dyndns.org 25->62 64 checkip.dyndns.com 193.122.130.0, 49726, 80 ORACLE-BMC-31898US United States 25->64 70 4 other IPs or domains 25->70 80 Tries to steal Mail credentials (via file access) 25->80 82 Tries to harvest and steal ftp login credentials 25->82 84 Tries to harvest and steal browser information (history, passwords, etc) 25->84 66 194.5.98.127, 49731, 49736, 49743 DANILENKODE Netherlands 29->66 68 127.0.0.1 unknown unknown 29->68 56 C:\Program Files (x86)\...\dhcpmon.exe, PE32 29->56 dropped 58 C:\Users\user\AppData\Roaming\...\run.dat, data 29->58 dropped 86 Hides that the sample has been downloaded from the Internet (zone.identifier) 29->86 34 schtasks.exe 1 29->34         started        36 schtasks.exe 1 29->36         started        file11 signatures12 process13 process14 38 conhost.exe 34->38         started        40 conhost.exe 36->40         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4151897619823917cf3420046de0a8d3c0da19995acbcb134cc784250945d53a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-07 00:34:03 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ifiys5qzqi4rptzueacg3yfi2panugmzllf4we2my6cckckf2u5a._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
1a3736d0a59836c3feecb448a77c4ab269dbd29df9de58ef81070129e248eb6c
NanoCore
28e575260cc878a8215800ebdaa02684d6997954a381c748e1e0fde409fadbd9
NanoCore
41f7f900d07f07c3f6d9d8aba51633b84766f7afe166505ac25a1bc5854f5f4a
NanoCore
619a5e8a0ade93b187c7f438bcb7c5bb15a33da3148176513a2c0010c7960cd4
NanoCore
c495c20d2765ea6964ab35551a73a23db3d7b4acc4c2c91de430ddb856603a24
NanoCore
ceff566b610cbb7bfdf4e575fac71fe7e3d920d5248521a8f75b777261552e0f
NanoCore
f61ec8c71bac6919062cddd77fa7fc6fa664c31cf71023925385d37ee42dc673
NanoCore
+ 2'999 additional samples on MalwareBazaar
Result
Malware family:
snakekeylogger
Create hunting rule
Score:
  10/10
Tags:
family:nanocore family:snakekeylogger evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210807-c5b6kwvtb2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
NanoCore
Snake Keylogger
Malware Config
C2 Extraction:
194.5.98.127:54984
127.0.0.1:54984
Unpacked files
SH256 hash:
bc903d20250251ec239811b9007c5221f5c267a1e1a9e9e8dd1eb05e062d5e06
MD5 hash:
e0c153e19ccb6366a79cf3571a191561
SHA1 hash:
dfee299bd88926e7b9f07c4ea8ae31d2cba69367
Link:
https://www.unpac.me/results/77710e81-edaa-41a1-aa67-95793322717e/
SH256 hash:
0195b5c6f14b4d3c3b9654187133f96e8c498a0831d2a0961b6885a8d4932e47
MD5 hash:
ec962e97ec8150569cda2415c5d07628
SHA1 hash:
1043e3b22ceb0f35d695f2096af0c2a5b25a1000
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/77710e81-edaa-41a1-aa67-95793322717e/
Parent samples :
9c6c647533d380c250dde31179fdeb02286f169a47e86e2071930512e0b04bac
bca7d4635b7130251ca3ca66b199519e3a9fd4af9c3ab13f346f0b487a940757
c495c20d2765ea6964ab35551a73a23db3d7b4acc4c2c91de430ddb856603a24
4151897619823917cf3420046de0a8d3c0da19995acbcb134cc784250945d53a
26f5e5a6934f7a01450d45745ff1622d20ac675b314906d72ad88bc3e358e219
SH256 hash:
aed00f82f1772e5a403cce9c1349202c8371e67ed9ef19a33cac0bf2a411f3c1
MD5 hash:
c273f926e2a29bd62cc8f27b569a0b2a
SHA1 hash:
e08d302cab3e11d776599a6b0537207fce6f9c51
Link:
https://www.unpac.me/results/77710e81-edaa-41a1-aa67-95793322717e/
SH256 hash:
be199cf41e646d05cfbd70bd488a24fa5a18f90935e3131acb944a1882f93cdd
MD5 hash:
70be392738e6664496f29a259dad944b
SHA1 hash:
542a08e5988df3c8821a9c87b0a2b3c50ea5de4a
Link:
https://www.unpac.me/results/77710e81-edaa-41a1-aa67-95793322717e/
SH256 hash:
25ef626936603a014af282b304813b9dbffbf8781558229d545e2be19dc612c4
MD5 hash:
f8a6ed83ef5fcc9fd61a9efb1a4250d5
SHA1 hash:
4a2b5ec718412cb02d341c79704be3bac3f7d007
Link:
https://www.unpac.me/results/77710e81-edaa-41a1-aa67-95793322717e/
SH256 hash:
4151897619823917cf3420046de0a8d3c0da19995acbcb134cc784250945d53a
MD5 hash:
d3a6b2942804437bb23319f5df1e56c3
SHA1 hash:
27e4cff6374c24928b365a80aef85697025b2af3
Link:
https://www.unpac.me/results/77710e81-edaa-41a1-aa67-95793322717e/
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/4151897619823917cf3420046de0a8d3c0da19995acbcb134cc784250945d53a

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
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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

Executable exe 4151897619823917cf3420046de0a8d3c0da19995acbcb134cc784250945d53a

(this sample)

  
Dropped by
NanoCore
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/177093/

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