MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e73b03a58aaa3e066512e451603c4ffc2404ad373d83f70b12ddb1c5bbef620a. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e73b03a58aaa3e066512e451603c4ffc2404ad373d83f70b12ddb1c5bbef620a
SHA3-384 hash: f8a13d680c3b0992fc72ec53690340cb31d358a18e2d0744973fe4d1901ba7fa163342d1ba933a9a9d5e6378c1243395
SHA1 hash: 65eccf15907bb466369dd90f09f6a433e2cea96e
MD5 hash: 4bae18ac4a73ff38f7ed718365e6c2b2
humanhash: illinois-crazy-wisconsin-may
File name:CUSTOMER ADVISORY.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:681'472 bytes
First seen:2021-10-10 12:16:50 UTC
Last seen:2021-10-11 09:20:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:2mqhvnjpWkmaq9Ja2rS2IT0XLNsgcY+ZOftprM9+TATqAMYp7TybXDExFc0:2mitmPR8TwLN7c5kD/M+KUXDEA
Threatray 3'047 similar samples on MalwareBazaar
TLSH T1B5E4CF202AFA116AFD32AF740EE4B596BF6EF6723612503DD05303970613E81DDE2979
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
3
# of downloads :
241
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CUSTOMER ADVISORY.exe
Verdict:
Malicious activity
Analysis date:
2021-10-10 12:19:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3fd307b4-4c94-4aa6-b774-a19901fa1895

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/196392/
Detection(s):
SecuriteInfo.com.Variant.Bulz.616013.20029.13251.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6162d9bf1c2d58ba74ff6901/reports/d692cfc2-f54a-42d7-b986-9ddc0498780c/overview
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e73b03a58aaa3e066512e451603c4ffc2404ad373d83f70b12ddb1c5bbef620a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-10 08:50:31 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=445qhjmkvi7amzis4riwapcp7qsajljxhwb7ocys3wy4lo7pmifa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
2b8a102443d6ed4c84471a54f058f24f5f55485bba73ebd785fdce294e337110
NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
NanoCore
3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
NanoCore
437c9421ae36bc19198438f86b86a39de0d207449abef097eb9656743823c256
NanoCore
4d01d1b24f4f7487669486becc7ff8b43a126f56ffb3d8fcce8c66b200412475
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
NanoCore
9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
NanoCore
9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
a276b0d2aaf8a132ffbe9ae16763975bcf38fc1e5a6419890712fc3de02b793f
NanoCore
+ 3'037 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/211010-pf13hsfhcl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
kamuchehddhgfgf.ddns.net:1187
37.0.10.22:1187
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e73b03a58aaa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e73b03a58aaa3e066512e451603c4ffc2404ad373d83f70b12ddb1c5bbef620a

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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 e73b03a58aaa3e066512e451603c4ffc2404ad373d83f70b12ddb1c5bbef620a

(this sample)

  
Dropped by
nanocore
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/196392/

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