MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc90ce49a569f884194e99fe404a2ab0e5b5048434b6bb05319abf1c05cccadc. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc90ce49a569f884194e99fe404a2ab0e5b5048434b6bb05319abf1c05cccadc
SHA3-384 hash: ec0723a0ebc375549df054b26df71699884e0883bbf577463dd2cfa353e26bf1e62626da254e5dea891c80b4cc6a95ba
SHA1 hash: e297f66052d8acb990cefb1b75abedaac017d77b
MD5 hash: f835518cfdeaad82ba90fdb59e180c48
humanhash: hawaii-nuts-vermont-sweet
File name:Payment confirmation .exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:550'400 bytes
First seen:2022-01-18 03:34:55 UTC
Last seen:2022-01-18 05:42:52 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 12288:vU+JTi9ajvipDRUAhdhgjciRX+bskaNeAin3eA8kRRRRRER:pdLi/h8wiRObT/Ain3eNkRRRRRER
Threatray 3'596 similar samples on MalwareBazaar
TLSH T1CAC42321B2F94623C5F547BD3852A140427C666A7F0AE34C71ABB0DE5993B479B03E3E
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
218
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment confirmation .exe
Verdict:
Malicious activity
Analysis date:
2022-01-18 03:36:44 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/762ec198-e63b-4f41-b0ef-143ed47f8d36

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/220028/
Detection(s):
SecuriteInfo.com.MachineLearning.Anomalous.100.16396.22873.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61e6356b0f8c757253c6e56a/reports/ef503e31-eb59-48de-bd8c-779cfef21445/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ade88404-6139-44ab-b501-3ae19c00d275
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/922149
Signature
.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
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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 Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 554627 Sample: Payment confirmation .exe Startdate: 18/01/2022 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus detection for URL or domain 2->33 35 13 other signatures 2->35 7 Payment confirmation .exe 7 2->7         started        process3 file4 23 C:\Users\user\AppData\...\BXGxAAXwSIPd.exe, PE32 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp8ED1.tmp, XML 7->25 dropped 27 C:\Users\...\Payment confirmation .exe.log, ASCII 7->27 dropped 37 Adds a directory exclusion to Windows Defender 7->37 11 powershell.exe 24 7->11         started        13 schtasks.exe 1 7->13         started        15 BackgroundTransferHost.exe 13 7->15         started        17 5 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 conhost.exe 13->21         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fc90ce49a569f884194e99fe404a2ab0e5b5048434b6bb05319abf1c05cccadc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-18 01:19:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
24 of 43 (55.81%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7sim4snfnh4iigkoth7easrkwds3kbeegs3lwbjrtk7rybomzloa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0522489c1b0eff1e817ab93264228b374c3d39562faf11e8248883ab2b52002d
NanoCore
0b1396805e736275f16550f3ecc5361cfcccc468094b4ea910ded8eaf430a5b3
NanoCore
195e0df7c1b02f419fa8e1a915876382ee68b372e01b60df24b76c8c39315f7a
NanoCore
39c5635ea42d63fe84500b9760fbe56e0fd3243007700749609bca1cd8d9e5d4
NanoCore
3b423344c5fff0aee78a4802681bac29d85c0b5edc1761caf455dc6bf0fce59a
NanoCore
67a070a61c8d94294f7b4eb0b4d7978a8b3dd8b5f72f63ad84aa116f95cfa996
NanoCore
998746d0f5d0c13df720f0bf3981d652c828ea64d64d2e16736a80123fb534aa
NanoCore
d401cecef9371db314f39d5c4bf3457340d7be6f0aac6c61b3cd25310a9dfadf
NanoCore
+ 3'586 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/220118-d5gjmagda7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Checks computer location settings
NanoCore
Malware Config
C2 Extraction:
naki.airdns.org:56281
37.120.210.211:56281
Unpacked files
SH256 hash:
b8fa89698f272e127c5bce86324068f4a33e1413aae2e5f4b7065947ac306860
MD5 hash:
de6074c989121abe41a81fc93b039e8f
SHA1 hash:
371d3ff1aae817fa6ab5484dd0d840c3a2bd2f71
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/d9d58546-7e1d-46ba-9f60-cc574f0f2c6a/
Parent samples :
d0f77eb32066c49a1a819784c848168a05408c1fa2d5018ab73c9d8e9faec410
a748ce02905bed11e738d78ffd3c0b123469e8284e3a0d87c135ac576a4aa9ca
a37b76412009111fc03e3b0197dbd0a8a97cb273861ceb08b79f186055c93d1b
a342cee6b10756a698cdb9a91ff146abe69956b8828f4750d2ffa5ebf6102702
49a0c536499d00698543ef125dbc267a880572fa55b39c38f618e00866ba8c24
39c5635ea42d63fe84500b9760fbe56e0fd3243007700749609bca1cd8d9e5d4
1bdd03a8f640c98db0bb14e6ca942096cc025f15df51281a905815d7ebec66dc
fc90ce49a569f884194e99fe404a2ab0e5b5048434b6bb05319abf1c05cccadc
901c1e2181f5f8f265c9db9e2b5ec3b27a87fe42e65cdfcf98e445a59493b803
176f35bde47c4bec6c1b3df8f1b8a8ad5f47040be0889123e988e8fcd0022320
796f57da16fa76bd10afb6a16f9f75b78673f47556ce4d93d93ec34b5d898f61
397d451635c44a575a9ee1293acc3b08aff054db053a288e1b7475b24860a44d
SH256 hash:
b6cc300948bc455c701cc29024cac6d8c4011c0dd8c4fc39c5e49063ce504ff3
MD5 hash:
1f55fd903b40526182a7e25d0d3aebaa
SHA1 hash:
fcb74f4f0f1495043046b85ec76720988d3f6805
Link:
https://www.unpac.me/results/d9d58546-7e1d-46ba-9f60-cc574f0f2c6a/
SH256 hash:
505e2399f8ea8c7703d6eb618d704eacc73c2ca91cfbfca074d92bf1e518e3af
MD5 hash:
f01ecc839ff879e6f59ee20b213d404a
SHA1 hash:
22c0e4a35e9705a5b582b845fd9a58d58c999bd4
Link:
https://www.unpac.me/results/d9d58546-7e1d-46ba-9f60-cc574f0f2c6a/
SH256 hash:
fc90ce49a569f884194e99fe404a2ab0e5b5048434b6bb05319abf1c05cccadc
MD5 hash:
f835518cfdeaad82ba90fdb59e180c48
SHA1 hash:
e297f66052d8acb990cefb1b75abedaac017d77b
Link:
https://www.unpac.me/results/d9d58546-7e1d-46ba-9f60-cc574f0f2c6a/
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/fc90ce49a569f884194e99fe404a2ab0e5b5048434b6bb05319abf1c05cccadc

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

Executable exe fc90ce49a569f884194e99fe404a2ab0e5b5048434b6bb05319abf1c05cccadc

(this sample)

  
Dropped by
nanocore
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/220028/

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