MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb55fa293a824686db59be3e107726d2091ba56a62092f79e2d47744535e5e94. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb55fa293a824686db59be3e107726d2091ba56a62092f79e2d47744535e5e94
SHA3-384 hash: a3cdb70b0f7bcac1cab6067acf3a189741f59311c8262fafaf64e2db67ad2cacb490ff9c41113f9c04f84b5004613c26
SHA1 hash: fdd54759342ef42b4bc57d961f5ad64a403ca082
MD5 hash: 3af8a45f94c976168e3699ad6fff614b
humanhash: double-monkey-timing-seven
File name:SHIPPING INVOICE DOCUMENTS.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'027'072 bytes
First seen:2023-05-12 13:13:44 UTC
Last seen:2023-05-15 10:23:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:UjqN2iNEc1dVowSws0+X7LP6licdvuogehmMhfoFT2R4rrkdiy:zN1+czVowS8GLPjcLhmOgFiR
Threatray 2'734 similar samples on MalwareBazaar
TLSH T1C525C33905B82B17C1B5D2B55BC0F413F6D08BC2B604CD9E6AC2478616E2E0E6DDBDAD
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
5
# of downloads :
322
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SHIPPING INVOICE DOCUMENTS.exe
Verdict:
Malicious activity
Analysis date:
2023-05-12 13:15:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0e2f1c51-b884-4860-b9ef-20d7ad2bef07

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XorStringsNET
Create hunting rule
Link:
https://www.capesandbox.com/analysis/388727/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo packed
Link:
https://www.filescan.io/uploads/645e3b9a8723e91f5525e31a/reports/b1000790-6b91-4da1-9062-8a4427ebdf73/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/cb55fa293a824686db59be3e107726d2091ba56a62092f79e2d47744535e5e94
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/14ba6111-c7b3-4011-921f-a1fd5f3cc182
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1231628
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 864606 Sample: SHIPPING_INVOICE_DOCUMENTS.exe Startdate: 12/05/2023 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 10 other signatures 2->43 7 SHIPPING_INVOICE_DOCUMENTS.exe 6 2->7         started        11 leEuVBZkgZ.exe 5 2->11         started        process3 file4 27 C:\Users\user\AppData\...\leEuVBZkgZ.exe, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\tmpF076.tmp, XML 7->29 dropped 31 C:\...\SHIPPING_INVOICE_DOCUMENTS.exe.log, ASCII 7->31 dropped 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->45 47 Uses schtasks.exe or at.exe to add and modify task schedules 7->47 49 Injects a PE file into a foreign processes 7->49 13 SHIPPING_INVOICE_DOCUMENTS.exe 15 2 7->13         started        17 schtasks.exe 1 7->17         started        51 Multi AV Scanner detection for dropped file 11->51 53 Machine Learning detection for dropped file 11->53 19 leEuVBZkgZ.exe 14 2 11->19         started        21 schtasks.exe 1 11->21         started        signatures5 process6 dnsIp7 33 api.telegram.org 149.154.167.220, 443, 49706, 49707 TELEGRAMRU United Kingdom 13->33 23 conhost.exe 17->23         started        35 192.168.2.1 unknown unknown 19->35 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->55 57 Tries to steal Mail credentials (via file / registry access) 19->57 59 Tries to harvest and steal browser information (history, passwords, etc) 19->59 25 conhost.exe 21->25         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb55fa293a824686db59be3e107726d2091ba56a62092f79e2d47744535e5e94/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-05-12 10:01:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=znk7ukj2qjdinw2zxy7ba5zg2ierxjlkmies66pc2r3uiu26l2ka._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1a753fc3d9b048299157676b1887bc8f04085e2a301e192418f9c383b75243a3
AgentTesla
4629b5912131c5a9c21c3ff2130f9f021398c15ebb66857ee543a55a076f5c07
AgentTesla
9454da092866823747fb0fb7e5b11652794974fad0d3fbab3f80db4ff97e4654
AgentTesla
a3928afcfa8b3e1825c9796ea9099e59e1e7ae2306fbfcc20dc3aae7c6065121
AgentTesla
ad3b7fbafb3b8778f1ba4cc5a02f9e5976bc93eef018b83dc99edd59a2360715
AgentTesla
d67557fd37174016e188f4e3932341f74c0a79ade0a34fbffc190e91b9e5a0e4
AgentTesla
f854947414eb240ac6807004331d3026156e195084486eed7060ae0c1bc05e98
AgentTesla
fa838dff56df25103842ba40c7e130f7fce0541a5318c935db67f472cbb35669
AgentTesla
+ 2'724 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230512-qgmf7adc22/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5515611206:AAEcQSX8hXHOAxSYr8KUdLxGF5eqw4FRXoA/
Unpacked files
SH256 hash:
6b905cd0e3bb9d2ef6b9fe62b99b18f325b8b2c0995f5f01964e0cd70afb5cab
MD5 hash:
cee0fdb6d4d3f4f0aaef4fc6a4ea27cd
SHA1 hash:
e325323fca528c940e815389c2a1d385931c9ce6
Link:
https://www.unpac.me/results/f3c4bfc9-7f51-43ff-8886-16f3f8459da4/
SH256 hash:
1e7aa2c63467920e1f1ca449952e411e273dba0923d8513e840354e314cd463f
MD5 hash:
50b8466f02b4d7d9f758d9edcbc1a96e
SHA1 hash:
c643de3f4c9369a84d2a36ede71bd9ad4893442a
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/f3c4bfc9-7f51-43ff-8886-16f3f8459da4/
Parent samples :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 hash:
a7e471f7bc560488312d57e885bb4cfc423587a0d84abbb3073a820f7cd0e209
MD5 hash:
e7709a907be0cdb6ff7eb99daee97c6c
SHA1 hash:
bb3f6871c40f54070b53947bf6958d410ea8bac1
Link:
https://www.unpac.me/results/f3c4bfc9-7f51-43ff-8886-16f3f8459da4/
SH256 hash:
cb55fa293a824686db59be3e107726d2091ba56a62092f79e2d47744535e5e94
MD5 hash:
3af8a45f94c976168e3699ad6fff614b
SHA1 hash:
fdd54759342ef42b4bc57d961f5ad64a403ca082
Link:
https://www.unpac.me/results/f3c4bfc9-7f51-43ff-8886-16f3f8459da4/
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cb55fa293a82/report/overview.html
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.

Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

zip 33d8b8a0ed75587f822b42f5ce63369dde24242e5b9dbe0629168d50a18cf5ee

AgentTesla

Executable exe cb55fa293a824686db59be3e107726d2091ba56a62092f79e2d47744535e5e94

(this sample)

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/388727/
  
Dropped by
SHA256 33d8b8a0ed75587f822b42f5ce63369dde24242e5b9dbe0629168d50a18cf5ee
  
Dropped by
MD5 1435b6c7d4b4da3c7b107954ed69590d

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