MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42ef90cd86cbc255c937743dc9207f7d16b95bc3e178b6bdd5e7299847320f62. 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

njrat

Vendor detections: 3

Intelligence 3 IOCs YARA 1 File information Comments

SHA256 hash:	42ef90cd86cbc255c937743dc9207f7d16b95bc3e178b6bdd5e7299847320f62
SHA3-384 hash:	67c347c386b21be1391222e48b3b4df8339db0d4ad3cd1ce35c9f2648196c9d12dc0c7d64f0ad49747f9ead8f8995056
SHA1 hash:	bde7f705958036438ccc1f4b2f483324e2d3a61b
MD5 hash:	65176316a898742993c5d97f22c5c3c1
humanhash:	colorado-helium-orange-nine
File name:	cuenta de cobro.docm
Download:	download sample
Signature	njrat Create hunting rule
File size:	149'953 bytes
First seen:	2020-05-13 09:45:45 UTC
Last seen:	Never
File type:	docm
MIME type:	application/vnd.openxmlformats-officedocument.wordprocessingml.document
ssdeep	3072:Llwd8Kd9tGQBdVsJxBGH/7CftPT7yCBmXokg:5IdtGeOxBGHwlT7DR
TLSH	B5E38C538C059B83E46C83F9BE074EA81F1A475DE691BAEF51260E8B7F503674E8D12C
Reporter	abuse_ch
Tags:	docm NjRAT Outlook RAT

abuse_ch

Malspam distributing njrat:

HELO: NAM11-DM6-obe.outbound.protection.outlook.com
Sending IP: 40.92.19.45
From: Central Financiero <cen-financiero@outlook.com>
Subject: cuenta de cobro
Attachment: cuenta de cobro.r22 (contains "cuenta de cobro.docm")

NjRAT payload URL:
http://37.59.90.90/dard/systen.exe

NjRAT C2:
kamikaze1089.duckdns.org:1089 (186.146.240.20)
lachuli10.duckdns.org:1021 (186.146.240.20
morty1998.duckdns.org:1021 (186.146.240.20)

Intelligence

File Origin

# of uploads :

# of downloads :

165

Origin country :

n/a

Vendor Threat Intelligence

Gathering data

Threat name:

Document-Word.Downloader.Sload

Status:

Malicious

First seen:

2020-05-13 10:47:00 UTC

File Type:

Document

Extracted files:

AV detection:

11 of 30 (36.67%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ilxzbtmgzpbflsjxoq64sid7pullsw6d4f4lnpov44uzqrzsb5ra._file

Verdict:

unknown

Result

Malware family:

n/a

Score:

10/10

Tags:

n/a

Link:

https://tria.ge/reports/201109-pxaq4tx1hx/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Office loads VBA resources, possible macro or embedded object present

Blacklisted process makes network request

Process spawned unexpected child process

Malware Config

Dropper Extraction:

http://37.59.90.90/dard/systen.exe

Please note that we are no longer able to provide a coverage score for Virus Total.

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.