MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6e6791f54af734cf6c8a7c255df5f154881bd767a13b567bbc5b184187cf58eb. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6e6791f54af734cf6c8a7c255df5f154881bd767a13b567bbc5b184187cf58eb
SHA3-384 hash: 71ea6717bf9b2bfb818e350b147c45ba43a9508d159518c74eff2a962614a2383512c3732d4dcb25b3342e19d0126565
SHA1 hash: aadebb338c1c32d90b6605a8d3875cc95a8a7c45
MD5 hash: 8d3bc2b7e7f3ed6b146eb8f802ca50f8
humanhash: comet-potato-mountain-finch
File name:po-iteam DOO00076543.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:532'480 bytes
First seen:2022-05-09 08:26:34 UTC
Last seen:2022-05-09 09:36:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:O2L2IsFBn1PHHsOkogWq3whJdmeug3ty40Jg2gMTnHu:O2iFBdHsOkopv0I0Jg2gMTO
Threatray 5'041 similar samples on MalwareBazaar
TLSH T132B41229A1A35736E3B833F77DB401C263F3368AB07AF2E52D5522F445A274E5504B2B
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)
Reporter adrian__luca
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
280
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
po-iteam DOO00076543.exe
Verdict:
Malicious activity
Analysis date:
2022-05-09 08:40:43 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/9c13fd2e-717b-43c8-a390-416ad5dca5a6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Inject4.31121.11428.26198.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6278d072bd5c76586e2413a8/reports/63ab557e-89a6-407d-8473-c13c19ea3fa0/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/8d5de04b-118c-40d9-9ff5-7d6ea2dc5627
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/990031
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 domain / URL
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)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 622527 Sample: po-iteam DOO00076543.exe Startdate: 09/05/2022 Architecture: WINDOWS Score: 100 39 rchickenkillerr.ddns.net 2->39 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 16 other signatures 2->51 8 po-iteam DOO00076543.exe 7 2->8         started        signatures3 process4 file5 29 C:\Users\user\AppData\Roaming\RnXatZj.exe, PE32 8->29 dropped 31 C:\Users\user\...\RnXatZj.exe:Zone.Identifier, ASCII 8->31 dropped 33 C:\Users\user\AppData\Local\...\tmp2F9D.tmp, XML 8->33 dropped 35 C:\Users\...\po-iteam DOO00076543.exe.log, ASCII 8->35 dropped 53 Adds a directory exclusion to Windows Defender 8->53 55 Injects a PE file into a foreign processes 8->55 12 po-iteam DOO00076543.exe 6 8->12         started        17 powershell.exe 24 8->17         started        19 powershell.exe 25 8->19         started        21 2 other processes 8->21 signatures6 process7 dnsIp8 41 rchickenkillerr.ddns.net 79.134.225.71, 3434, 49752, 49753 FINK-TELECOM-SERVICESCH Switzerland 12->41 43 91.193.75.132, 3434, 49755, 49756 DAVID_CRAIGGG Serbia 12->43 37 C:\Users\user\AppData\Roaming\...\run.dat, data 12->37 dropped 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->57 23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        27 conhost.exe 21->27         started        file9 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6e6791f54af734cf6c8a7c255df5f154881bd767a13b567bbc5b184187cf58eb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-04 13:57:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nztzd5kk642m63ekpqsv35prksebxv3hue5vm654lmmedb6pldvq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
3bb2d01333b78a2d4b58a3d27e22c7f84ce2a1fa277f8a4d9034a482389dfc25
NanoCore
8f4007f0c6f570327d5026756b4a48c8a776a6a9516b28a83913307d3db760f7
NanoCore
b9d9fc33dc623971bbbf29c9ba63b81e71177163aa404366622fd3f083b89136
NanoCore
e72a6a06f00903c71cc40e79fdbf1fe1155099b722da6e606f4c8c65835a60fd
NanoCore
f618dcbc522a7fcd1b196f9af050ddd1c5cd8d16e460c26cdb1ada8af00f9021
NanoCore
+ 5'031 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/220509-kcfvyscgf7/
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
Malware Config
C2 Extraction:
rchickenkillerr.ddns.net:3434
91.193.75.132:3434
Unpacked files
SH256 hash:
493d729497039951d41b3d74dc7a0304378eb929f2525fd80868685e13041ff6
MD5 hash:
7afd32987b0c26db4697bbbb0df42413
SHA1 hash:
8da9883c4a44a293c0908697bbe521b60955c902
Link:
https://www.unpac.me/results/f23158a2-c51e-44b3-b1de-2b5125b6cce3/
SH256 hash:
044e6e22943ac21887eaef4daf70bc43b8d7b54b7160ecc2e0b6ff77a6832a99
MD5 hash:
0512fe61b5e75a5aa25f0c17882292cd
SHA1 hash:
3b05ecfbb15a15fd46a9d9b588620454b6361745
Link:
https://www.unpac.me/results/f23158a2-c51e-44b3-b1de-2b5125b6cce3/
SH256 hash:
6e6791f54af734cf6c8a7c255df5f154881bd767a13b567bbc5b184187cf58eb
MD5 hash:
8d3bc2b7e7f3ed6b146eb8f802ca50f8
SHA1 hash:
aadebb338c1c32d90b6605a8d3875cc95a8a7c45
Link:
https://www.unpac.me/results/f23158a2-c51e-44b3-b1de-2b5125b6cce3/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6e6791f54af7/report/overview.html
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/6e6791f54af734cf6c8a7c255df5f154881bd767a13b567bbc5b184187cf58eb

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: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 6e6791f54af734cf6c8a7c255df5f154881bd767a13b567bbc5b184187cf58eb

(this sample)

  
Delivery method
Distributed via e-mail attachment

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