MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a6a175d59e4c5c69eb490f20296a26ea53d59eb6580b3b34dfa1d2c4f717e76. 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 3 File information Comments
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SHA256 hash: 2a6a175d59e4c5c69eb490f20296a26ea53d59eb6580b3b34dfa1d2c4f717e76
SHA3-384 hash: 267cda23013580915c8764a59d004862ef4822e44508a02662af0d40a448beda6775b5cb06e5f8ab3a952556a2810f70
SHA1 hash: 287691d48ffec8edf8e805a3ae52b69ca3a9a069
MD5 hash: e3eae4685ea0f7452ffb904163fd72e1
humanhash: purple-bacon-south-pizza
File name:DRT PO NUMBER FIS22050413.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:175'104 bytes
First seen:2022-05-04 15:23:18 UTC
Last seen:2022-05-04 15:59:04 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 384:am9k5vFE6dAlWo23le/RhFVeGLdNETT4k4g6tGocA04sQm6eS2KWVAvne3Me+aoe:amOQ/R/VeRaje3EJGq+xP
TLSH T1D9043102657CA8C3F69C6C73A8DC975E1EE06C6C4676106DF247B6E9E53F103E6212E2
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)
File icon (PE):PE icon
dhash icon 74fcd4c2c4c4c0d4 (4 x Formbook, 3 x NanoCore, 2 x AgentTesla)
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
6
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
DRT PO NUMBER FIS22050413.exe
Verdict:
Malicious activity
Analysis date:
2022-05-04 15:33:00 UTC
Tags:
trojan nanocore rat
Link:
https://app.any.run/tasks/a4681c02-9ee5-43f2-beee-6690fed5e193

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/268674/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.21059.14974.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/62729aa02b32b1c37c932790/reports/db61b8cd-1da7-40d7-9592-64e21b63a84e/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:
Malicious
Link:
https://analyze.intezer.com/analyses/a98abeed-0ed1-47c2-b381-c4a0c2fa3add
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/987896
Signature
.NET source code contains potential unpacker
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)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Snort IDS alert for network traffic
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 620392 Sample: DRT PO NUMBER FIS22050413.exe Startdate: 04/05/2022 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 9 other signatures 2->45 6 DRT PO NUMBER FIS22050413.exe 16 6 2->6         started        11 Dreqzc.exe 14 3 2->11         started        13 Dreqzc.exe 2 2->13         started        process3 dnsIp4 35 62.197.136.237, 49757, 49765, 49766 SPRINTLINKUS Netherlands 6->35 25 C:\Users\user\AppData\Roaming\...\Dreqzc.exe, PE32 6->25 dropped 27 C:\Users\user\...\Dreqzc.exe:Zone.Identifier, ASCII 6->27 dropped 29 C:\...\DRT PO NUMBER FIS22050413.exe.log, ASCII 6->29 dropped 47 Writes to foreign memory regions 6->47 49 Injects a PE file into a foreign processes 6->49 15 InstallUtil.exe 10 6->15         started        51 Multi AV Scanner detection for dropped file 11->51 53 Machine Learning detection for dropped file 11->53 19 InstallUtil.exe 3 11->19         started        21 InstallUtil.exe 11->21         started        23 InstallUtil.exe 13->23         started        file5 signatures6 process7 file8 31 C:\Users\user\AppData\Roaming\...\run.dat, data 15->31 dropped 37 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->37 33 C:\Users\user\AppData\...\InstallUtil.exe.log, ASCII 19->33 dropped signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2a6a175d59e4c5c69eb490f20296a26ea53d59eb6580b3b34dfa1d2c4f717e76/
Threat name:
ByteCode-MSIL.Trojan.Injuke
Create hunting rule
Status:
Malicious
First seen:
2022-05-04 14:57:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
47
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fjvboxkz4tc4nhvusdzaffvcn2st2wplmwalhm2n7iosyt3rpz3a._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/220504-ss15tsghdl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
62.197.136.237:55688
Unpacked files
SH256 hash:
2a6a175d59e4c5c69eb490f20296a26ea53d59eb6580b3b34dfa1d2c4f717e76
MD5 hash:
e3eae4685ea0f7452ffb904163fd72e1
SHA1 hash:
287691d48ffec8edf8e805a3ae52b69ca3a9a069
Link:
https://www.unpac.me/results/5625c214-f0aa-4992-a6d7-6b92cd51eade/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2a6a175d59e4/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/2a6a175d59e4c5c69eb490f20296a26ea53d59eb6580b3b34dfa1d2c4f717e76

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_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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

img a6f6be6aaa756359325338b9b2b47bbd3b6d55125c678977409052c15bacade2

NanoCore

Executable exe 2a6a175d59e4c5c69eb490f20296a26ea53d59eb6580b3b34dfa1d2c4f717e76

(this sample)

  
Dropped by
nanocore
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/268674/
  
Dropped by
SHA256 a6f6be6aaa756359325338b9b2b47bbd3b6d55125c678977409052c15bacade2
  
Dropped by
MD5 15e63d95b76b595d456b8998c3c71157

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