MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0f91a022face55458459e23c434b9102cd99bea0c3c7a584ef5965bf0b30bb71. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0f91a022face55458459e23c434b9102cd99bea0c3c7a584ef5965bf0b30bb71
SHA3-384 hash: 2bf357bedad55c47cf7cb90c3ddf723b49045ac749f71b9f573e64d87b743749314f3a4c618a46cb126ac5c1865dd444
SHA1 hash: 02c0aa3a1cb705285049cd8a9fde173dbe9ffcb8
MD5 hash: f5435da222db2bfd1d30089f6259eb11
humanhash: east-neptune-kansas-nitrogen
File name:OBL.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:665'088 bytes
First seen:2022-04-27 12:06:30 UTC
Last seen:2022-04-27 12:39:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:ATuZOnJ/dNsLWJeYJfKVUk5/9KYsKSlo62Wpd3ha4n3PZ:gJrAQjfKVZpSa62ed3r/Z
Threatray 4'866 similar samples on MalwareBazaar
TLSH T14CE4E11CBBBECB16C7DA0732D0E455044BB0EE02A556EB4FAAC522861D03357D953BAF
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 69dca0e8e8e0c448 (22 x AgentTesla, 8 x SnakeKeylogger, 6 x Loki)
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
324
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/267223/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.29762.22226.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe msbuild.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/626931f9a796b19348f7226c/reports/c00a3bc5-1d92-40e9-a447-5077c4dd13ba/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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ecb3e1f4-191a-4087-bdee-c823888a9c46
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/984049
Signature
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicious Svchost Process
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 616545 Sample: OBL.exe Startdate: 27/04/2022 Architecture: WINDOWS Score: 100 38 brightnano2.ddns.net 2->38 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 12 other signatures 2->52 9 OBL.exe 3 2->9         started        13 OBL.exe 2 2->13         started        signatures3 process4 file5 36 C:\Users\user\AppData\Local\...\OBL.exe.log, ASCII 9->36 dropped 54 Uses schtasks.exe or at.exe to add and modify task schedules 9->54 56 Injects a PE file into a foreign processes 9->56 15 OBL.exe 11 9->15         started        20 svchost.exe 1 9->20         started        22 OBL.exe 9->22         started        26 2 other processes 9->26 24 OBL.exe 2 13->24         started        signatures6 process7 dnsIp8 40 brightnano2.ddns.net 2.56.56.126, 1818, 49742, 49750 GBTCLOUDUS Netherlands 15->40 42 192.168.2.1 unknown unknown 15->42 32 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 15->32 dropped 34 C:\Users\user\AppData\Local\...\tmp8147.tmp, XML 15->34 dropped 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->44 28 schtasks.exe 1 15->28         started        file9 signatures10 process11 process12 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0f91a022face55458459e23c434b9102cd99bea0c3c7a584ef5965bf0b30bb71/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-27 12:07:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=b6i2aix2zzkulbcz4i6egs4ralgztpvaypd2lbhplfs36czqxnyq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0610cb3a060ef7b21f8346e3aaba432daa7dd55553832c53aca23f76af695333
NanoCore
0b1396805e736275f16550f3ecc5361cfcccc468094b4ea910ded8eaf430a5b3
NanoCore
263565e9f77b5ee48474855d471315dd56d1bcabe4d037fb380d404b3afcd14e
NanoCore
45272694709263868523b77d0561757378cc2e8aa7d64c7ed21deaacbdf88b5b
NanoCore
862965d573744607a29489905cfc8abdd8f187874d476ef4263eee7e5175630a
NanoCore
8bf0518cd0c607aa51073dfe422f6af43ab8b43523bd0c182cc6172c9ecb9072
NanoCore
a30622ef748dbcae11f6a12cf32c096527e55364b32ae546ea1b729c121128ee
NanoCore
adac602d329a95580921b519350a4eefa10c98f593b6be76855b31d8bea64909
NanoCore
b771e6a9cb56600b3cb46440bd7af362598c9904350163754898505d35cff4ad
NanoCore
+ 4'856 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer suricata trojan
Link:
https://tria.ge/reports/220427-paandaecd2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
brightnano2.ddns.net:1818
2.56.59.113:1818
Unpacked files
SH256 hash:
490a3c329bb9ea8fcffa92008a2a8bff4b4c0774f990a088138cad059153eab1
MD5 hash:
2d08e2782174193b5c0c81c5cb2b66c7
SHA1 hash:
f34a4612c2d247da5c2d0d4cd4f6da55dc8280ad
Link:
https://www.unpac.me/results/451728d4-5808-409c-ae04-6c3c453dc1d8/
SH256 hash:
fdfc5e4c429806f7ec1b0791e05e0393c0e78fbc312bcdd0f7787d44edfe1f87
MD5 hash:
111807aede6addef794a8f98d9954001
SHA1 hash:
e6d4792b3cd1359d3bf3e04e3dfc35b65ab60405
Link:
https://www.unpac.me/results/451728d4-5808-409c-ae04-6c3c453dc1d8/
SH256 hash:
6aee14683ae6b7074101bb1088922dbb127e4dc05490484c22b9d40b8cf060cb
MD5 hash:
af839bd03889634343205ac30742e94e
SHA1 hash:
3dd206eb47f756afd9c8e4333084a486479abe1e
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/451728d4-5808-409c-ae04-6c3c453dc1d8/
Parent samples :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 hash:
92fc621e886ad486195efe1b074a5186c27599e3dd4d71c72cae3078b8660ae2
MD5 hash:
e80503550a2aa077f62f09c7dc6be7e4
SHA1 hash:
f93e86c149eac50b611a1f9a7b59f5d81026262c
Link:
https://www.unpac.me/results/451728d4-5808-409c-ae04-6c3c453dc1d8/
SH256 hash:
0f91a022face55458459e23c434b9102cd99bea0c3c7a584ef5965bf0b30bb71
MD5 hash:
f5435da222db2bfd1d30089f6259eb11
SHA1 hash:
02c0aa3a1cb705285049cd8a9fde173dbe9ffcb8
Link:
https://www.unpac.me/results/451728d4-5808-409c-ae04-6c3c453dc1d8/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0f91a022face/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/0f91a022face55458459e23c434b9102cd99bea0c3c7a584ef5965bf0b30bb71

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 0f91a022face55458459e23c434b9102cd99bea0c3c7a584ef5965bf0b30bb71

(this sample)

  
Dropped by
nanocore
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/267223/

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