MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab6799b9abcfccd9d1813d07d83b325737221cf242126ad0918c2b84cc16c815. 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: 12


Intelligence 12 IOCs YARA File information Comments

SHA256 hash: ab6799b9abcfccd9d1813d07d83b325737221cf242126ad0918c2b84cc16c815
SHA3-384 hash: 734fe990fb0a7fbd58596c0096dfe581f18f26de3bea2efb3397faaa68928c7c5a577821f27cc01c474a29b2ba30866d
SHA1 hash: 7b096da6663eb1ec9509117fc41212766b1f0d61
MD5 hash: 6f96aba54ea08f823a90e051928cff11
humanhash: nitrogen-vermont-bakerloo-quebec
File name:TransactionSummary_910020049836765_110424045239.xlsx
Download: download sample
Signature AgentTesla
File size:1'338'362 bytes
First seen:2024-04-18 10:06:33 UTC
Last seen:2024-04-18 10:44:21 UTC
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 24576:3i4bUj5hLtI+QfHAsK8e0xTpkOk/Dk0KGf/9L8K98qiB9MDztJirnH6R+OMK1sUj:3i4bUHLO+QIx8eCk/DXdLSvB9MDjirnE
TLSH T1535533A8DA1597DFDF6D317D2FEC92B6A12FEF07AF449D405802D10894DFA820C89B46
TrID 60.1% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7)
30.9% (.ZIP) Open Packaging Conventions container (17500/1/4)
7.0% (.ZIP) ZIP compressed archive (4000/1)
1.7% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 xlsx

Office OLE Information


This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
A11616359 bytesEquaTiON NaTIvE
A20 bytesnoypV8rqbcQPO6fqtMsVA0irstGs

Intelligence


File Origin
# of uploads :
2
# of downloads :
2'737
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ab6799b9abcfccd9d1813d07d83b325737221cf242126ad0918c2b84cc16c815.xlsx
Verdict:
No threats detected
Analysis date:
2024-04-18 10:29:36 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Creating a window
Searching for synchronization primitives
Launching a process
DNS request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Sending a custom TCP request by exploiting the app vulnerability
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
89%
Tags:
embedequation exploit shellcode
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
0%
Result
Verdict:
MALICIOUS
Details
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Potential downloader shellcode found
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Shellcode detected
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Microsoft Office Child Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1428011 Sample: TransactionSummary_91002004... Startdate: 18/04/2024 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for dropped file 2->38 40 17 other signatures 2->40 8 EXCEL.EXE 53 12 2->8         started        process3 process4 10 EQNEDT32.EXE 11 8->10         started        dnsIp5 32 universalmovies.top 172.67.162.95, 443, 49161 CLOUDFLARENETUS United States 10->32 24 C:\Users\user\...\ohoyecmjjohohj75.scr, PE32 10->24 dropped 26 TransactionSummary...4045239.xlsx[1].exe, PE32 10->26 dropped 52 Installs new ROOT certificates 10->52 54 Office equation editor establishes network connection 10->54 56 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->56 15 ohoyecmjjohohj75.scr 1 7 10->15         started        file6 signatures7 process8 signatures9 58 Antivirus detection for dropped file 15->58 60 Machine Learning detection for dropped file 15->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 15->62 64 3 other signatures 15->64 18 RegAsm.exe 12 2 15->18         started        22 powershell.exe 4 15->22         started        process10 dnsIp11 28 ip-api.com 208.95.112.1, 49163, 80 TUT-ASUS United States 18->28 30 api.ipify.org 104.26.13.205, 443, 49162 CLOUDFLARENETUS United States 18->30 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->42 44 Tries to steal Mail credentials (via file / registry access) 18->44 46 Tries to harvest and steal browser information (history, passwords, etc) 18->46 50 2 other signatures 18->50 48 Installs new ROOT certificates 22->48 signatures12
Threat name:
Document-OLE.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2024-04-18 01:14:50 UTC
File Type:
Document
Extracted files:
18
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware family:
AgentTesla
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments