MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aec74de68b784abd0b40a123a06480e09c3f00cceb88245e766606ea8650eb4a. 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: 13


Intelligence 13 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aec74de68b784abd0b40a123a06480e09c3f00cceb88245e766606ea8650eb4a
SHA3-384 hash: 3b7f00eb79c90ad02ebb8cd27320bd327d26e9b5c1bffae58fbead42f899901d4b8c8bc59afc76d352eaecf21d5d23be
SHA1 hash: c6fa75767a45a4707ca1bdfb86a4a027398b42da
MD5 hash: 95dbab0a97c0a5f40d3683350cef8143
humanhash: single-july-lamp-minnesota
File name:gu.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:916'480 bytes
First seen:2022-04-25 09:43:10 UTC
Last seen:2022-04-25 10:35:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:AB4fvgCnMk3XeZpgAHXhJLw/OhJ2CIdV8/VFDe0qpyCiMVPexUvVoKv5OWZdB4Kk:AB4VM8C/bw/OhJ2a/VDa3
Threatray 4'771 similar samples on MalwareBazaar
TLSH T17B155C9A7110F69EC877E8F28A541C50A6506DAF433B9293606333B899FD5C7EF102F6
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 0f3375cccc61338f (15 x AgentTesla, 11 x Formbook, 6 x SnakeKeylogger)
Reporter ankit_anubhav
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
296
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
XkSq565pdZdgqNk.exe
Verdict:
Malicious activity
Analysis date:
2022-04-25 08:35:56 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/f48fb644-7517-4caf-a59b-9a8cb7632735

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/266291/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.32241.28692.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62666d41adbef2ca414ac430/reports/d4f34283-70e4-4dea-9777-7da8ffbe807a/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/8432ea00-bdcb-40a2-90e8-1dca67f80612
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/982307
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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: 614794 Sample: gu.exe Startdate: 25/04/2022 Architecture: WINDOWS Score: 100 76 naga0.ddns.net 2->76 84 Malicious sample detected (through community Yara rule) 2->84 86 Antivirus detection for dropped file 2->86 88 Antivirus / Scanner detection for submitted sample 2->88 90 16 other signatures 2->90 9 gu.exe 7 2->9         started        13 gu.exe 2->13         started        15 dhcpmon.exe 2->15         started        17 dhcpmon.exe 2->17         started        signatures3 process4 file5 68 C:\Users\user\AppData\Roaming\qRcEtCUrC.exe, PE32 9->68 dropped 70 C:\Users\...\qRcEtCUrC.exe:Zone.Identifier, ASCII 9->70 dropped 72 C:\Users\user\AppData\Local\...\tmpB171.tmp, XML 9->72 dropped 74 C:\Users\user\AppData\Local\...\gu.exe.log, ASCII 9->74 dropped 94 Detected unpacking (changes PE section rights) 9->94 96 Detected unpacking (overwrites its own PE header) 9->96 98 Uses schtasks.exe or at.exe to add and modify task schedules 9->98 19 gu.exe 1 12 9->19         started        24 powershell.exe 25 9->24         started        26 schtasks.exe 1 9->26         started        28 gu.exe 9->28         started        100 Adds a directory exclusion to Windows Defender 13->100 102 Injects a PE file into a foreign processes 13->102 30 powershell.exe 13->30         started        32 schtasks.exe 13->32         started        34 4 other processes 13->34 36 3 other processes 15->36 38 2 other processes 17->38 signatures6 process7 dnsIp8 78 79.134.225.22, 49751, 49752, 49753 FINK-TELECOM-SERVICESCH Switzerland 19->78 80 naga0.ddns.net 185.19.85.160, 49748, 49749, 49750 DATAWIRE-ASCH Switzerland 19->80 82 192.168.2.1 unknown unknown 19->82 62 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->62 dropped 64 C:\Users\user\AppData\Roaming\...\run.dat, data 19->64 dropped 66 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 19->66 dropped 92 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->92 40 schtasks.exe 1 19->40         started        42 schtasks.exe 19->42         started        44 conhost.exe 24->44         started        46 conhost.exe 26->46         started        48 conhost.exe 30->48         started        50 conhost.exe 32->50         started        52 conhost.exe 36->52         started        54 conhost.exe 36->54         started        56 conhost.exe 38->56         started        file9 signatures10 process11 process12 58 conhost.exe 40->58         started        60 conhost.exe 42->60         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aec74de68b784abd0b40a123a06480e09c3f00cceb88245e766606ea8650eb4a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-25 09:44:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v3du3zulpbfl2c2auer2azea4cod6agm5oecixtwmydovbsq5nfa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
08a62cc0bd0c9cc0375aa718245fc96b54acc5e4d29185d9850ac8b9ddad2b80
NanoCore
14d1b90e0c7a7109c610280bcf7201c4ed8b565e04ca74ec049c07f5fa8df337
NanoCore
3d4adf57d91eb47360050e595922701ac9caea76cba29c3aa036f6c7a89e9008
NanoCore
4682c806dd41aaccbb4f8bf3ead4fd322c302f334e3edc6dc06292bbd32335a0
NanoCore
4f7da7d6fb331a8098d4ce354690ffc64d8f0225307b406e722548109e669d4d
NanoCore
c0ab33b61d5d9896285da573532189b283cfe249e48da061738240b3caa6dc02
NanoCore
+ 4'761 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220425-lqgj3sbgg8/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
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
Checks computer location settings
NanoCore
Malware Config
C2 Extraction:
naga0.ddns.net:54761
79.134.225.22:54761
Unpacked files
SH256 hash:
b829e9a33c2fc7d78ae85d2a6e863623d33c34b8907ef4a4bd66ea6fe734332b
MD5 hash:
ac2e89f4d6bdacbc69b34e1ee282f20a
SHA1 hash:
fae8b2edb9243755d20fe8bdd114b0b40f8341d6
Link:
https://www.unpac.me/results/9c059dd4-5304-4d6b-a9fd-45c79a9f8321/
SH256 hash:
31534331fbb9141b72f85265c363152b8cb4b911d325355b7eef472ec576a88d
MD5 hash:
c83aca2f713eb592dfe019c93260d1db
SHA1 hash:
e2441773d609fa096ea0887432bc1872155ee8ee
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/9c059dd4-5304-4d6b-a9fd-45c79a9f8321/
SH256 hash:
09cd3bc420c8982190990a9673b58c3ab01e933dff0881f1e521d3316f1b9a6b
MD5 hash:
6933707e111286a128ad0f7fa298153f
SHA1 hash:
d1121c8bed634e9684727e8c0aad3f597b0749ad
Link:
https://www.unpac.me/results/9c059dd4-5304-4d6b-a9fd-45c79a9f8321/
SH256 hash:
4485e811788a652c35786cdfbfbcc63779e4a1d89cec1427c58dc20d4a38aaff
MD5 hash:
633c99b906fd0e5602e55eedeed1a6a3
SHA1 hash:
64de3475e5c1ceb65826a3a2f301f848d23ee95c
Link:
https://www.unpac.me/results/9c059dd4-5304-4d6b-a9fd-45c79a9f8321/
SH256 hash:
aec74de68b784abd0b40a123a06480e09c3f00cceb88245e766606ea8650eb4a
MD5 hash:
95dbab0a97c0a5f40d3683350cef8143
SHA1 hash:
c6fa75767a45a4707ca1bdfb86a4a027398b42da
Link:
https://www.unpac.me/results/9c059dd4-5304-4d6b-a9fd-45c79a9f8321/
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/aec74de68b784abd0b40a123a06480e09c3f00cceb88245e766606ea8650eb4a

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:ach_NanoCore
Create hunting rule
Author:abuse.ch
Rule name:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Feb18_1_RID2DF1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:Nanocore_RAT_Gen_2_RID2D96
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:pdb2
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_nanocore_w0
Create hunting rule
Author:Kevin Breen <kevin@techanarchy.net>

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/266291/

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