MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca78cc22c0e49a75cc75a733acf0b088c3bb74375056872590bc71356f03c6a4. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments

SHA256 hash: ca78cc22c0e49a75cc75a733acf0b088c3bb74375056872590bc71356f03c6a4
SHA3-384 hash: e0ae53937198cc914ff8575868c8337a6b656fdac96c0160bde19807333f93e8f81c312bb4c71419b37b66442c75239b
SHA1 hash: 7801376c1332b904d12675a9007a4c12866db860
MD5 hash: 9a44f36caf11078eb7abd74748f16a54
humanhash: nebraska-floor-november-iowa
File name:ungziped_file
Download: download sample
Signature AgentTesla
File size:737'280 bytes
First seen:2024-01-29 09:24:41 UTC
Last seen:2024-01-29 11:35:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Va122IoIFFHgeg/cVLrDkld4st6QxkNII9CiqJ+Gz/dM+PJw4Yrc14LrGi:H2IXFxFrDytjoCiqJ+GzpPpYQ1
TLSH T129F4124936B89712C8B94BFF59B062941BF1B5526490F3EC0F8032FE1DA6BD18B10E97
TrID 49.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.9% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.7% (.SCR) Windows screen saver (13097/50/3)
7.0% (.EXE) Win64 Executable (generic) (10523/12/4)
4.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 1e1a594c6c52124e (17 x AgentTesla, 5 x Formbook, 3 x SnakeKeylogger)
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
329
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
ca78cc22c0e49a75cc75a733acf0b088c3bb74375056872590bc71356f03c6a4.exe
Verdict:
Malicious activity
Analysis date:
2024-01-29 09:28:17 UTC
Tags:
agenttesla stealer

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
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
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:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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 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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1382550 Sample: ungziped_file.exe Startdate: 29/01/2024 Architecture: WINDOWS Score: 100 38 wrklearning.com 2->38 40 mail.wrklearning.com 2->40 42 2 other IPs or domains 2->42 48 Snort IDS alert for network traffic 2->48 50 Found malware configuration 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 8 other signatures 2->54 8 ungziped_file.exe 7 2->8         started        12 FVLjOoPhVQ.exe 5 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\FVLjOoPhVQ.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\tmp866C.tmp, XML 8->36 dropped 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->56 58 Uses schtasks.exe or at.exe to add and modify task schedules 8->58 60 Adds a directory exclusion to Windows Defender 8->60 14 ungziped_file.exe 15 2 8->14         started        18 powershell.exe 22 8->18         started        20 schtasks.exe 1 8->20         started        62 Multi AV Scanner detection for dropped file 12->62 64 Machine Learning detection for dropped file 12->64 66 Injects a PE file into a foreign processes 12->66 22 FVLjOoPhVQ.exe 14 2 12->22         started        24 schtasks.exe 1 12->24         started        signatures6 process7 dnsIp8 44 wrklearning.com 110.4.45.184, 49710, 49713, 587 EXABYTES-AS-APExaBytesNetworkSdnBhdMY Malaysia 14->44 46 api4.ipify.org 64.185.227.156, 443, 49708, 49711 WEBNXUS United States 14->46 26 WmiPrvSE.exe 18->26         started        28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        68 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->68 70 Tries to steal Mail credentials (via file / registry access) 22->70 72 Tries to harvest and steal browser information (history, passwords, etc) 22->72 32 conhost.exe 24->32         started        signatures9 process10
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2024-01-29 01:28:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
agenttesla_v4 agenttesla
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
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
Looks up external IP address via web service
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
Unpacked files
SH256 hash:
812b521f5acd4de9595a84e9b6c496fc60cff2f90aa3390fefc8572dc18e7412
MD5 hash:
eff747494479af68c4014bc0eab05aa2
SHA1 hash:
929668a6893d03aa6f272876a0c234b1d101c47c
Detections:
AgentTesla win_agent_tesla_bytecodes_sep_2023 INDICATOR_EXE_Packed_GEN01
SH256 hash:
3014b859be7cafca84f61ab3398e0832d80175d76dc6ff4a45df7b2fef39dcaf
MD5 hash:
17cbde8bc5d57e164c1daa95d1b37d0b
SHA1 hash:
4856da540fd30d018fa511c9ce705871e1e2affa
SH256 hash:
3512e50a7509ca8b120d7835c69302e5d739fa3651dd65485e5739a1cc991ede
MD5 hash:
8bc76b6253fe4689a874767bdefec712
SHA1 hash:
4642b756487c2e1878e7e03e32e77b51df0b3b3e
SH256 hash:
fb511aa5c0b1c955aeca367b4f3b15ab0ff46838f221b8711a6697365ff7ea81
MD5 hash:
58cc8799769b7d46a11f319032b4b98f
SHA1 hash:
163669882d08159e9aa829d5aee56743e7edd50f
SH256 hash:
ca78cc22c0e49a75cc75a733acf0b088c3bb74375056872590bc71356f03c6a4
MD5 hash:
9a44f36caf11078eb7abd74748f16a54
SHA1 hash:
7801376c1332b904d12675a9007a4c12866db860
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:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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

Executable exe ca78cc22c0e49a75cc75a733acf0b088c3bb74375056872590bc71356f03c6a4

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments