MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b63331b6052cd2cdecf84fd9a481bc30a5c8404d09a5694700a6b79f5d76514a. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b63331b6052cd2cdecf84fd9a481bc30a5c8404d09a5694700a6b79f5d76514a
SHA3-384 hash: e58926a3418bfbdc3ff1136266c95a1efc4d2352db627fcf298cf93790c0c254e3669de388490a67ea0faa519098f196
SHA1 hash: cf7e4c2a83d7b7c31462ebc62a65dcfc310ac7d0
MD5 hash: b23048bb519459d777ae29307d0f6d78
humanhash: don-comet-twelve-sad
File name:MT103.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:881'664 bytes
First seen:2023-05-18 20:22:28 UTC
Last seen:2023-05-20 15:16:08 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:qYsOGRSljSNcQROzin29dM7RXYszkocbZ6:d/r8B4jV
Threatray 2'916 similar samples on MalwareBazaar
TLSH T16715833C4AA689EBD17BC3F49BCC4957FABCD833B454D92B09D60782224175EA1C219F
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 threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
256
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MT103.exe
Verdict:
Malicious activity
Analysis date:
2023-05-18 20:23:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/50390200-91fd-4eac-8dfc-73a28d68e917

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Generic.33743278.5471.9506.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending a custom TCP request
Reading critical registry keys
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin packed
Link:
https://www.filescan.io/uploads/6466892775f687672ac6ae0e/reports/dd4d9910-c151-403e-a338-736362750c4f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b63331b6052cd2cdecf84fd9a481bc30a5c8404d09a5694700a6b79f5d76514a
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/8589de19-eb84-4084-bb51-4c53cf1f6125
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1236354
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Found malware configuration
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
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 the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b63331b6052cd2cdecf84fd9a481bc30a5c8404d09a5694700a6b79f5d76514a/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-05-16 05:19:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wyztdnqfftjm33hyj7m2jan4gcs4qqcnbgswsryau23z6xlwkffa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
00b4678b94d884d5638bd270ed0c42f20697ebb1ba2746d14b45515da43bd3b7
AgentTesla
1eff050baff83ae24c33483e5d79a58d2ca3370b8716332ac88c1c704338c3b1
AgentTesla
4b3b2e33768b07e48c7b2a32ec2e0f0fcd94b2062170b975f5324d77d28105a2
AgentTesla
51a4fb3b2148da43d34a86a9af619af67ff8611f8bb7448e4edcb9d3207ca1b2
AgentTesla
b7d8fbbf428d72bcf7513bf41bfbf43db9f8f90a86f790b35e439dc1c1ac58e0
AgentTesla
bebd0c5009a5b0b0a06fbe0020bd6f083ed90509771dbf1f8010e19e527bf464
AgentTesla
d37ac5f67be37a7cd0fa09b2d0ffb1e5190caf1abbb2183fd00b0c7a35a204b1
AgentTesla
de673c6577604d1036c5df6d67d9f5f9010eeb367a43ec7712b5614f70b725cd
AgentTesla
fc8c6d3dafa922ac0493c26e96e337563b1beaa46e1725ed1799ac5a46ceabcd
AgentTesla
+ 2'906 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/230518-y54z5sdg93/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/
Unpacked files
SH256 hash:
a7e471f7bc560488312d57e885bb4cfc423587a0d84abbb3073a820f7cd0e209
MD5 hash:
e7709a907be0cdb6ff7eb99daee97c6c
SHA1 hash:
bb3f6871c40f54070b53947bf6958d410ea8bac1
Link:
https://www.unpac.me/results/c798e7a9-2d9e-4c5d-9c75-cdd35a68ee44/
SH256 hash:
8b6897340984e35dba937364681bd98592594774504daf0a724c843c00b95341
MD5 hash:
3a566b5e883a0c0cdfe09cd5d64bce6f
SHA1 hash:
9cbdec781d7aabbe6286474833877aa6ca030951
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/c798e7a9-2d9e-4c5d-9c75-cdd35a68ee44/
Parent samples :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 hash:
05d3a56d1a3648079d1654fd93137fb77443f9d6b4e1bd6fd7c8a1a4a7fac1e5
MD5 hash:
59fd1701e710c383cca5e95ccb9765e9
SHA1 hash:
4011109cdef11d0528bb3c51608065d91ccacea0
Link:
https://www.unpac.me/results/c798e7a9-2d9e-4c5d-9c75-cdd35a68ee44/
SH256 hash:
b63331b6052cd2cdecf84fd9a481bc30a5c8404d09a5694700a6b79f5d76514a
MD5 hash:
b23048bb519459d777ae29307d0f6d78
SHA1 hash:
cf7e4c2a83d7b7c31462ebc62a65dcfc310ac7d0
Link:
https://www.unpac.me/results/c798e7a9-2d9e-4c5d-9c75-cdd35a68ee44/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b63331b6052c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/b63331b6052cd2cdecf84fd9a481bc30a5c8404d09a5694700a6b79f5d76514a

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:Dotnet_Hidden_Executables_Detect
Create hunting rule
Author:Mehmet Ali Kerimoglu (@CYB3RMX)
Description:This rule detects hidden PE file presence.
Reference:https://github.com/CYB3RMX/Qu1cksc0pe
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:reverse_http
Create hunting rule
Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
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

Executable exe b63331b6052cd2cdecf84fd9a481bc30a5c8404d09a5694700a6b79f5d76514a

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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