MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9887d0bbd4cb31cfed5e1cf658d9093d37eda711063cd177f8b838318c965934. 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


QuasarRAT


Vendor detections: 6


Intelligence 6 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9887d0bbd4cb31cfed5e1cf658d9093d37eda711063cd177f8b838318c965934
SHA3-384 hash: 8576307b83d5bb85a68c39d8fd076550f3aa114c4d1aca3d15af97ec61ccaa9469dd7f1e3ba1182ea1d02f693190f0d9
SHA1 hash: f4b8a24def857aa2476a4a8f53d295c6927fb212
MD5 hash: 87c0013d75e63c4b96c9d504050dc601
humanhash: muppet-vermont-virginia-emma
File name:SKBM 0223.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:517'120 bytes
First seen:2021-02-23 07:24:09 UTC
Last seen:2021-02-23 08:45:52 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:+wCyo8UFevkdCg0R0mbzbi2ZTPXoyfdXP2T01+LVs:cyMFppebfi2ZTPoylPkK
Threatray 29 similar samples on MalwareBazaar
TLSH 93B4BE2026989B1EE03EBB795120610F43F1A617D327E68F7EE551DB7E52F404B72A23
Reporter abuse_ch
Tags:exe QuasarRAT


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: static.224.7.21.65.clients.your-server.de
Sending IP: 65.21.7.224
From: Ms. Gusti Rudangga <adrjecb@widendeclaration.com>
Subject: Re: Quotation Request (RFQ)
Attachment: SKBM 0223.rar (contains "SKBM 0223.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
105
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/118513/
Detection(s):
SecuriteInfo.com.Win32.15678.25304.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/614949
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Contains functionality to log keystrokes (.Net Source)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
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)
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 356483 Sample: SKBM 0223.exe Startdate: 23/02/2021 Architecture: WINDOWS Score: 100 25 Malicious sample detected (through community Yara rule) 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 Yara detected AntiVM_3 2->29 31 8 other signatures 2->31 8 SKBM 0223.exe 3 2->8         started        process3 file4 21 C:\Users\user\AppData\...\SKBM 0223.exe.log, ASCII 8->21 dropped 33 Injects a PE file into a foreign processes 8->33 12 SKBM 0223.exe 15 3 8->12         started        signatures5 process6 dnsIp7 23 ip-api.com 208.95.112.1, 49745, 80 TUT-ASUS United States 12->23 15 cmd.exe 1 12->15         started        process8 process9 17 conhost.exe 15->17         started        19 choice.exe 1 15->19         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9887d0bbd4cb31cfed5e1cf658d9093d37eda711063cd177f8b838318c965934/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-23 07:24:34 UTC
AV detection:
13 of 47 (27.66%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tcd5bo6uzmy473k6dt3frwijhu363jyray6nc57yxa4dddewle2a._file
Verdict:
unknown
Similar samples:
00ea5bf66857a669971686b5fdc1ea0cae6395d10b9e4c449aa1f5306273659b
QuasarRAT
07dda01539775e2875eb4f74f9b9a5b0452706f68ba536b102c102adacb5f514
QuasarRAT
519282aae605f44e961c8f3d83e6e6d191d2299fc29c97c12461f3ecf37499cd
QuasarRAT
58e859630e2c6bf67159e3749ab71038fcbcfb32ba0bbf3162d58a7fac6311eb
QuasarRAT
642e7c5b6904fe50c539440104b792feece1754c754b69e4d369ad494222cb78
QuasarRAT
7a6dec2d6d0f46a15bcaa0b667eb864a6c3c93743727530fdbd4253a2a4a0fab
QuasarRAT
80622d6bf536ca1e21f411864d3c4af7f4ebded98ea3aeeb6c99b964b247e3ca
QuasarRAT
845d3b849c47b1f91d8a03f3b588f192e4b0a55effadac3a5dd5bfe2f26f5b4e
QuasarRAT
860203ed69fb482c0d80e484e302612a13ec876f1a591ccce9ef7f6371fef197
QuasarRAT
c024e649afaafd4d1a1ebc2c5a2c457eecd2b5994c2b78e32312eb5289b5c093
QuasarRAT
+ 19 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  9/10
Tags:
evasion
Link:
https://tria.ge/reports/210223-8d9dxdwbvs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Maps connected drives based on registry
Checks BIOS information in registry
Deletes itself
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/1a61ae1c-5bd3-4b3f-b3b0-a1ed9648bad1/
SH256 hash:
9887d0bbd4cb31cfed5e1cf658d9093d37eda711063cd177f8b838318c965934
MD5 hash:
87c0013d75e63c4b96c9d504050dc601
SHA1 hash:
f4b8a24def857aa2476a4a8f53d295c6927fb212
Link:
https://www.unpac.me/results/1a61ae1c-5bd3-4b3f-b3b0-a1ed9648bad1/
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/9887d0bbd4cb31cfed5e1cf658d9093d37eda711063cd177f8b838318c965934

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:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf

File information

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

Malspam

QuasarRAT

rar 799a92c73f139faa4ed3b13076dc1b9b983d17d6d95eed284dd360c5920991ca

QuasarRAT

Executable exe 9887d0bbd4cb31cfed5e1cf658d9093d37eda711063cd177f8b838318c965934

(this sample)

  
Dropped by
MD5 e7fe575d0f6871b324308b31d218c090
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118513/
  
Dropped by
SHA256 799a92c73f139faa4ed3b13076dc1b9b983d17d6d95eed284dd360c5920991ca

Comments