MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 165a1197676a6b92b0086bbdb79a3b615c83ec9d686449b934c4475905608b2a. 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


AgentTesla


Vendor detections: 6


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

SHA256 hash: 165a1197676a6b92b0086bbdb79a3b615c83ec9d686449b934c4475905608b2a
SHA3-384 hash: e08aa2475306d795dba23a475cff0ab232a6b27e24eb0643f5dfe0c722090447e45e89cd832013c8c6714025f05ac06a
SHA1 hash: 980e9b028eb078954fa8f174aa5f7eb1a1148f01
MD5 hash: ae873e3dfc44548f8e9339f8581ed70e
humanhash: emma-bluebird-gee-colorado
File name:RFQ_W-T0138.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:67'567 bytes
First seen:2020-09-12 05:41:48 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 1536:EH1cBTPZN7VjELoH2KQKOcmJgjzqhYFS6dWRiKcBfXSgJ25a:bTiLoHgbJsqhoS6gcBT05a
TLSH B763AFBC79082DE6A66F42B7DA86BCDC02BA765295C795CD507CBBC30533336EE02805
Reporter cocaman
Tags:AgentTesla doc


Avatar
cocaman
Malicious email
From: info@sterokem.com
Received: from vade-backend17.dreamhost.com (fltr-in1.mail.dreamhost.com [66.33.205.212])
Date: 08 Sep 2020 12:12:42 +0200
Subject: RFQ_W-T0138 for Order No.111562
Attachment: RFQ_W-T0138.doc

Intelligence

File Origin
# of uploads :
1
# of downloads :
148
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR._EQUATION.200422.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Reading critical registry keys
Launching a service
Creating a file
Sending an HTTP GET request
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Creating a process from a recently created file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/464671
Signature
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 284743 Sample: RFQ_W-T0138.doc Startdate: 12/09/2020 Architecture: WINDOWS Score: 100 38 mail.mms.co.ke 2->38 60 Multi AV Scanner detection for domain / URL 2->60 62 Found malware configuration 2->62 64 Antivirus detection for URL or domain 2->64 66 12 other signatures 2->66 8 EQNEDT32.EXE 11 2->8         started        13 JWkfT.exe 2->13         started        15 JWkfT.exe 2->15         started        17 WINWORD.EXE 291 19 2->17         started        signatures3 process4 dnsIp5 52 gooddns.ir 194.180.224.87, 49165, 80 REBECCAHOSTUS unknown 8->52 32 C:\Users\user\AppData\...\frankbon7532.exe, PE32 8->32 dropped 34 C:\Users\user\AppData\...\frankbo[1].exe, PE32 8->34 dropped 84 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 8->84 19 frankbon7532.exe 8->19         started        86 Antivirus detection for dropped file 13->86 88 Multi AV Scanner detection for dropped file 13->88 90 Detected unpacking (changes PE section rights) 13->90 94 5 other signatures 13->94 22 JWkfT.exe 12 4 13->22         started        92 Maps a DLL or memory area into another process 15->92 25 JWkfT.exe 15->25         started        file6 signatures7 process8 dnsIp9 68 Antivirus detection for dropped file 19->68 70 Multi AV Scanner detection for dropped file 19->70 72 Detected unpacking (changes PE section rights) 19->72 82 6 other signatures 19->82 27 frankbon7532.exe 13 8 19->27         started        40 mail.mms.co.ke 22->40 42 54.235.182.194, 443, 49170, 49172 AMAZON-AESUS United States 22->42 48 3 other IPs or domains 22->48 44 mail.mms.co.ke 25->44 46 nagano-19599.herokussl.com 25->46 50 2 other IPs or domains 25->50 74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->74 76 Tries to steal Mail credentials (via file access) 25->76 78 Tries to harvest and steal ftp login credentials 25->78 80 Tries to harvest and steal browser information (history, passwords, etc) 25->80 signatures10 process11 dnsIp12 54 mail.mms.co.ke 198.54.120.156, 49166, 49169, 49171 NAMECHEAP-NETUS United States 27->54 56 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.126.66, 443, 49167 AMAZON-AESUS United States 27->56 58 2 other IPs or domains 27->58 36 C:\Users\user\AppData\Roaming\...\JWkfT.exe, PE32 27->36 dropped 96 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->96 98 Tries to steal Mail credentials (via file access) 27->98 100 Hides that the sample has been downloaded from the Internet (zone.identifier) 27->100 file13 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/165a1197676a6b92b0086bbdb79a3b615c83ec9d686449b934c4475905608b2a/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-09-08 18:22:34 UTC
File Type:
Document
Extracted files:
3
AV detection:
16 of 48 (33.33%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
upx persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200912-nq99tdwarx/
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blacklisted process makes network request
Executes dropped EXE
UPX packed file
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Exploit
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/165a1197676a6b92b0086bbdb79a3b615c83ec9d686449b934c4475905608b2a

File information

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

Malspam

AgentTesla

Word file doc 165a1197676a6b92b0086bbdb79a3b615c83ec9d686449b934c4475905608b2a

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments