MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a3943ec7cac6636c8df4057c8d9b9d6a68104cac429f684b8d1e30cfd91f37c. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2a3943ec7cac6636c8df4057c8d9b9d6a68104cac429f684b8d1e30cfd91f37c
SHA3-384 hash: 28793bf6af1566fd56111de280568df4d6e38813e6d2a13e94a2114b8ad2c37be5143a030bd912fbb94117d61ae6fe9b
SHA1 hash: a246efb9b286d2606481d39a804bdd60cf2bab66
MD5 hash: 7f7341c82c52ce18978e1973679607c2
humanhash: eighteen-low-lamp-ink
File name:Urgent Notice SA 00938.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'577'472 bytes
First seen:2024-12-02 13:11:50 UTC
Last seen:2024-12-09 07:29:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 49152:vKHvzTFMiT9HeNQDkFY9rwiDA/M1+dM0bjj:xQFZIM0dM
TLSH T16975F103BB868EB1C6844B36CCDB591193A4E2C5B747CB1E359B23E9488777ADF02947
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
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) (4504/4/1)
Magika pebin
Reporter adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
416
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Urgent Notice SA 00938.exe
Verdict:
Malicious activity
Analysis date:
2024-12-02 13:12:30 UTC
Tags:
purecrypter purelogs
Link:
https://app.any.run/tasks/f3826182-8488-4bf3-b4ee-bb4981c386fb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.31143.13812.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=674db40ee64d1c722d7b59ef
Tags:
autorun virus agent msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
net_reactor obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/674db239f7c2ff1a12e5a562/reports/0c89d3e1-2ee7-4f12-abc5-79941e9e0e29/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/2a3943ec7cac6636c8df4057c8d9b9d6a68104cac429f684b8d1e30cfd91f37c
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ec8bae52-6487-4696-8f98-157948986d43
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1566624
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Drops VBS files to the startup folder
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2a3943ec7cac6636c8df4057c8d9b9d6a68104cac429f684b8d1e30cfd91f37c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2a3943ec7cac6636c8df4057c8d9b9d6a68104cac429f684b8d1e30cfd91f37c/
Threat name:
Win32.Trojan.Casdet
Create hunting rule
Status:
Malicious
First seen:
2024-12-01 09:23:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fi4uh3d4vrtdnsg7ibl4rwnz22ticbgkyqu7nbfy2hrqz7mr6n6a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery
Link:
https://tria.ge/reports/241202-qfjnxazqfr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Drops startup file
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a6beafa2-a706-446a-9ee5-19da6cddb480
Unpacked files
SH256 hash:
63742fc4904b8e65a9c249c4a7735f18ca04983d9065c870d6f77638233a82c9
MD5 hash:
fa42afcbdabed8ba875025a7e2bfcbbd
SHA1 hash:
11c4915858647a95c8c90f14161721ab2ee13fc0
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/ab7dc4e5-bcac-4a15-ad54-62a24cccfabd/
SH256 hash:
2a3943ec7cac6636c8df4057c8d9b9d6a68104cac429f684b8d1e30cfd91f37c
MD5 hash:
7f7341c82c52ce18978e1973679607c2
SHA1 hash:
a246efb9b286d2606481d39a804bdd60cf2bab66
Link:
https://www.unpac.me/results/ab7dc4e5-bcac-4a15-ad54-62a24cccfabd/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2a3943ec7cac/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2a3943ec7cac6636c8df4057c8d9b9d6a68104cac429f684b8d1e30cfd91f37c

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
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

AgentTesla

Executable exe 2a3943ec7cac6636c8df4057c8d9b9d6a68104cac429f684b8d1e30cfd91f37c

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments