MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a5efffc818c01f738a3c79297554cbfcd6e409cb72c44dccc3ba52bbd9277f3. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a5efffc818c01f738a3c79297554cbfcd6e409cb72c44dccc3ba52bbd9277f3
SHA3-384 hash: fa9540bd1a32024849d454140edcf36dde3909c8663dc6ec52fb8f67208210b2a2c632fce4baedd5f373ae627da139b9
SHA1 hash: f084d8c53564e5fd3dc67597fc18bd0cf0951bcd
MD5 hash: 666c989a85720ad2fec2cce3d883655f
humanhash: vermont-zulu-london-spring
File name:Payment copy for 2-Naphthalenlythiol (Cas no. 91-60-1) 200kg.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:866'816 bytes
First seen:2023-02-07 17:10:34 UTC
Last seen:2023-02-10 10:34:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:OiaHB8b8vOztLHKNu+A+/1bkFPc1x5ol6/9FwAud:u5oa9F16
Threatray 20'512 similar samples on MalwareBazaar
TLSH T16205182E197652D2D0B8FB7106E28520B5AD4C82772BD91D9CDAFAC47F711822ECF64C
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 39f8d894f2d8cc62 (2 x AgentTesla, 2 x SnakeKeylogger, 1 x MassLogger)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment copy for 2-Naphthalenlythiol (Cas no. 91-60-1) 200kg.exe
Verdict:
Malicious activity
Analysis date:
2023-02-07 17:17:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/31b0ba97-df65-40bb-84a5-8c16314051c6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/361488/
Detection(s):
SecuriteInfo.com.Trojan.Olock.1.32535.29158.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
83%
Tags:
packed
Link:
https://www.filescan.io/uploads/63e2862a416d38777a7ab570/reports/b697a8d6-9049-4fbb-a428-e6116419ebc3/overview
Verdict:
Malicious
Labled as:
Trojan.Olock.Generic
Link:
https://www.hybrid-analysis.com/sample/4a5efffc818c01f738a3c79297554cbfcd6e409cb72c44dccc3ba52bbd9277f3
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/af7c5b78-0dfa-4be3-b88c-1c8227b8af85
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1168192
Signature
.NET source code contains very large strings
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 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: 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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 800979 Sample: Payment copy for 2-Naphthal... Startdate: 07/02/2023 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 9 other signatures 2->52 7 wePYOL.exe 5 2->7         started        10 Payment copy for 2-Naphthalenlythiol (Cas no. 91-60-1) 200kg.exe 6 2->10         started        13 yGbzOMp.exe 2 2->13         started        15 yGbzOMp.exe 1 2->15         started        process3 file4 66 Multi AV Scanner detection for dropped file 7->66 68 Machine Learning detection for dropped file 7->68 70 Writes to foreign memory regions 7->70 72 Injects a PE file into a foreign processes 7->72 17 RegSvcs.exe 3 7->17         started        21 schtasks.exe 1 7->21         started        38 C:\Users\user\AppData\Roaming\wePYOL.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmpA042.tmp, XML 10->40 dropped 42 Payment copy for 2...60-1) 200kg.exe.log, ASCII 10->42 dropped 23 RegSvcs.exe 2 4 10->23         started        26 schtasks.exe 1 10->26         started        28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        signatures5 process6 dnsIp7 54 Tries to harvest and steal browser information (history, passwords, etc) 17->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->56 32 conhost.exe 21->32         started        44 mail.unitechautomations.com 192.185.129.60, 49704, 49706, 587 UNIFIEDLAYER-AS-1US United States 23->44 36 C:\Users\user\AppData\Roaming\...\yGbzOMp.exe, PE32 23->36 dropped 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->58 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->60 62 Tries to steal Mail credentials (via file / registry access) 23->62 64 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 23->64 34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a5efffc818c01f738a3c79297554cbfcd6e409cb72c44dccc3ba52bbd9277f3/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-02-06 20:24:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
34
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jjpp77ebrqa7oofdy6jjovkmx7gw4qe4w4wejxgmhossxpmso7zq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
12c598ddb0c9b6164e4fa571ac765e83dc8ff2108b3c6b8dbabcf0ee0ea95cc4
AgentTesla
19f5de1fab76d8bdac9d3bab7ec590152f1b9b4f154d1c429a1fd1acb65ba628
AgentTesla
1f5d9074ca3f0cb21ca2e31560ff93491a57ea74466b5ff5a6ac0d63774029c6
AgentTesla
28077feabc25e755cd22379ce5ff757c9913aee54da57f1530a4a99b594afb77
AgentTesla
41857a1bfb1cda7337d39a4c6bcec253fb44532179f9cb12e919608f227e3dcb
AgentTesla
54e7a3ef035646bbf5fa3428726b3d79270596429936a831165f17c2650c1924
AgentTesla
5a64665bdc77f9386891c1a251064decfdce7e9782bb4b47d95e2c14238d46f2
AgentTesla
a84aad3732ea9ed162f345bddceeb44da8b25e0ab4fd4e55848c1804d00d652d
AgentTesla
b03da986046c2b6590f52efafcd803f02ee12379d1273b3b6b0814bfe5b2474d
AgentTesla
e6c4f27c74ef1e7af054304d895c1923ef54eb3530980b1e0d0b19d49c95faee
AgentTesla
+ 20'502 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230207-vp9znscg96/
Behaviour
outlook_office_path
outlook_win_path
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
6e645e6150633c5de79c3e8fcd2e5e2c71163d8494828fa00a33e55979d79cbb
MD5 hash:
0ece77ddb2bab7bda1681faaf99e1d6a
SHA1 hash:
ccc8c63e862b8331b614ed906dc3e94ec1ba4d67
Link:
https://www.unpac.me/results/7eaed4ed-df8c-48e3-a564-52ce2883e38c/
SH256 hash:
03e71e897fc6c9223cedae3324b49330dd8b20a75b0fd10deee45ed5907109d5
MD5 hash:
42af620191046e04ab94fdc48f0cacf2
SHA1 hash:
cc289682330efa8afcefc86378ff3fb9549f85f7
Link:
https://www.unpac.me/results/7eaed4ed-df8c-48e3-a564-52ce2883e38c/
SH256 hash:
bf221ba4ba946510f1c55523e3cc7da2f24da5a941d9822e0a6fd452d6aa4386
MD5 hash:
cfd4484fa71858fe358252f84c53ed37
SHA1 hash:
37a3d220c0d2f5f55fa61fefa7978296304ce47b
Link:
https://www.unpac.me/results/7eaed4ed-df8c-48e3-a564-52ce2883e38c/
SH256 hash:
4a5efffc818c01f738a3c79297554cbfcd6e409cb72c44dccc3ba52bbd9277f3
MD5 hash:
666c989a85720ad2fec2cce3d883655f
SHA1 hash:
f084d8c53564e5fd3dc67597fc18bd0cf0951bcd
Link:
https://www.unpac.me/results/7eaed4ed-df8c-48e3-a564-52ce2883e38c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4a5efffc818c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.84
Link:
https://yomi.yoroi.company/submissions/4a5efffc818c01f738a3c79297554cbfcd6e409cb72c44dccc3ba52bbd9277f3

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: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

rar d373c8ce71fe6247e92e94d95103fcc01c710906fdd2d581591e41149329344b

AgentTesla

Executable exe 4a5efffc818c01f738a3c79297554cbfcd6e409cb72c44dccc3ba52bbd9277f3

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/361488/
  
Dropped by
SHA256 d373c8ce71fe6247e92e94d95103fcc01c710906fdd2d581591e41149329344b
  
Dropped by
MD5 064b54b95d3e0341353779bcf21023b4

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