MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ea49f722d6874e9b0b754f8116edceee6cdf4b85aa893d1b86053bfc506e5602. 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: 8

Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash:	ea49f722d6874e9b0b754f8116edceee6cdf4b85aa893d1b86053bfc506e5602
SHA3-384 hash:	4a512a7f812c58984f80a701d94a38d9f00bf1c4eed70807e22dd7569b5d425852401a98b3825a1437ae8fd2c4c68844
SHA1 hash:	fdefa2e960e4241e4ae84c1ddae82b705dab6a06
MD5 hash:	b9440f3ad2aa7d4634ef51c73126c426
humanhash:	west-johnny-leopard-cup
File name:	STATEMENT OF ACCOUNT.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	1'227'264 bytes
First seen:	2020-10-12 06:17:56 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	24576:q0+vZcp3C9Bg5hZ+k/jicjD/HD8KTBl8iiM/ChVkWgrCg8yZkiA2wC:PS9BgZ+0nDfDBrriMarkRrMyZkiH
Threatray	34 similar samples on MalwareBazaar
TLSH	4145AE1FA74FAFB9C5AF5B70404A205D0D04A3F6EE93D45DBF903D470E5266C206BAA2
Reporter	abuse_ch
Tags:	exe NanoCore RAT

abuse_ch

Malspam distributing NanoCore:

HELO: [131.153.18.91]
Sending IP: 131.153.18.91
From: accounts_removals1@gifco.com
Subject: STATEMENT OF ACCOUNT
Attachment: STATEMENT OF ACCOUNT.uue (contains "STATEMENT OF ACCOUNT.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

114

Origin country :

n/a

Vendor Threat Intelligence

Gathering data

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a file in the %temp% directory

Creating a process from a recently created file

Running batch commands

Creating a process with a hidden window

Launching a process

Creating a file in the %AppData% subdirectories

Creating a file

Unauthorized injection to a recently created process by context flags manipulation

Enabling autorun

Result

Threat name:

Unknown

Detection:

malicious

Classification:

evad

Score:

84 / 100

Link:

https://www.joesandbox.com/analysis/488033

Signature

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Injects a PE file into a foreign processes

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to detect virtualization through RDTSC time measurements

Writes to foreign memory regions

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/ea49f722d6874e9b0b754f8116edceee6cdf4b85aa893d1b86053bfc506e5602/

Threat name:

ByteCode-MSIL.Backdoor.NanoCore

Status:

Malicious

First seen:

2020-10-12 03:30:18 UTC

AV detection:

22 of 28 (78.57%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=5je7oiwwq5hjwc3vj6arn3oo5zwn6s4fvket2g4gau57yudokyba._file

Verdict:

malicious

Result

Malware family:

n/a

Score:

8/10

Tags:

persistence

Link:

https://tria.ge/reports/201012-sy8kw7gcbj/

Behaviour

Delays execution with timeout.exe

NTFS ADS

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

Loads dropped DLL

Executes dropped EXE

Unpacked files

SH256 hash:

57f263dbd0203860a31c4b2231375e77e447f89277413582ee5de07a49942055

MD5 hash:

f7231dca052063cf269d31a7b255174e

SHA1 hash:

c1825853f5ec3d7928c581ce70696f77a99f6112

Detections:

win_webmonitor_w0

Link:

https://www.unpac.me/results/9f33ae1f-7ae3-4d75-ab58-4c1dbd1e49e3/

Parent samples :

ea49f722d6874e9b0b754f8116edceee6cdf4b85aa893d1b86053bfc506e5602
78be18a8bdab5baf14aa5c195ce9f5636750cd4fee2d3bbc3528f4ed8f9ad9ee
1167a7d5a6192107c841eee3d1292914e2ddbe6b661f2c2c41f1c1977ac97372
35975410919029f5c15ea420be97c10c327b94a2aa9e9b044e15660aede8c509
fe2f20398cff7bea0e10e10940e0936e2525ba8dba51263387f1b1d82d8b1aea
b426493d22cf9ad03bb8958bb2d994119dd6fb014c23855775dd7a9660bb51a9
4dec812952bd5e2e6ee08fec35c3d78887feaf0269cf4f624b965b5f8c481652
4a2d48d163b550561583e4e5811dc43cb67045e7a9816c30fb8fde4af8dd06d5
15003064a4b6d326954815712d6468af76d413335470092fbd820b02745d3e02
6095dd10965d4e081e87c366736e0305b7d42f84dbdb10471bcedacfe145f7a5
84d9088f856e12f998ce324510f185b9e6939c8d1cb2cdb46eb9b38baf879619
7696274f6270b793b2dffc5b283a104be475d79b440500478780e24f6436fd5a
0ed8f93b98f9cfff89559df9e0a8d360cab3dde1abfa2992216b4a98c5ca1253
d6593053bda046cd96e0e5e508e0f57622c464738838b84984e35e683d46c414

SH256 hash:

ea49f722d6874e9b0b754f8116edceee6cdf4b85aa893d1b86053bfc506e5602

MD5 hash:

b9440f3ad2aa7d4634ef51c73126c426

SHA1 hash:

fdefa2e960e4241e4ae84c1ddae82b705dab6a06

Link:

https://www.unpac.me/results/9f33ae1f-7ae3-4d75-ab58-4c1dbd1e49e3/

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/ea49f722d6874e9b0b754f8116edceee6cdf4b85aa893d1b86053bfc506e5602

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:	Keylog_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Contains Keylog

Rule name:	Select_from_enumeration Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	win_webmonitor_w0 Create hunting rule
Author:	James_inthe_box
Description:	Revcode RAT
Reference:	ee1b9659f2193896ce3469b5f90b82af3caffcba428e8524be5a9fdf391d8dd8