MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7. 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: 19


Intelligence 19 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7
SHA3-384 hash: e2f015855e60e9ac6f04f9e73095699a3fe5d507c722a8c1e598d3bf2fd2d0fbb73fe72c60153290e987b1dde995ff9c
SHA1 hash: bd4b0788506c4b89f8f337e562b18a0a487cf7d7
MD5 hash: bc485238868f7f97201b319323655d75
humanhash: massachusetts-ack-mississippi-early
File name:Summary of DXB,CNE & NE.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:705'024 bytes
First seen:2024-02-27 12:41:44 UTC
Last seen:2024-02-28 15:40:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:9MzScVsYBhHsLTNgYz6XlhAmsZM7RgknAYjzIcfTN7PTMhz94v2K6o:ezSOFHsL4kmsZM7RJAMIcfTNK9fK6o
Threatray 537 similar samples on MalwareBazaar
TLSH T1DDE423147FACDB37CD1F2A772E78C22A8775024566EAEF8E4D8443F6481139882DBE14
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon f0a2aae48ae4e29a (11 x AgentTesla, 3 x Formbook, 1 x PureLogsStealer)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
322
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7.exe
Verdict:
Malicious activity
Analysis date:
2024-02-27 12:49:07 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/cfb80de3-ad27-4a78-94d2-600a0a4594ee

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/477994/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.14132.25040.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
keylogger packed
Link:
https://www.filescan.io/uploads/65ddd8a126f1ddc579ac2389/reports/1210ca8b-446d-47f7-a488-db3aad1473c1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7
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/676f2e16-91d8-4dfd-8f42-6a489500f38b
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1399466
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
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
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
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)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1399466 Sample: Summary of DXB,CNE & NE.exe Startdate: 27/02/2024 Architecture: WINDOWS Score: 100 42 mail.sdlbd.net 2->42 44 api.ipify.org 2->44 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Sigma detected: Scheduled temp file as task from temp location 2->54 56 13 other signatures 2->56 8 Summary of DXB,CNE & NE.exe 7 2->8         started        12 stcaZj.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\Roaming\stcaZj.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp9BDE.tmp, XML 8->40 dropped 58 Writes to foreign memory regions 8->58 60 Allocates memory in foreign processes 8->60 62 Adds a directory exclusion to Windows Defender 8->62 14 RegSvcs.exe 15 2 8->14         started        18 RegSvcs.exe 8->18         started        20 powershell.exe 23 8->20         started        26 2 other processes 8->26 64 Multi AV Scanner detection for dropped file 12->64 66 Machine Learning detection for dropped file 12->66 68 Injects a PE file into a foreign processes 12->68 22 RegSvcs.exe 12->22         started        24 schtasks.exe 12->24         started        signatures6 process7 dnsIp8 46 mail.sdlbd.net 118.179.92.24, 49704, 49707, 587 AMBERIT-BD-ASAmberITLimitedBD Bangladesh 14->46 48 api.ipify.org 104.26.12.205, 443, 49702, 49706 CLOUDFLARENETUS United States 14->48 70 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->70 28 WmiPrvSE.exe 20->28         started        30 conhost.exe 20->30         started        72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->72 74 Tries to steal Mail credentials (via file / registry access) 22->74 76 Tries to harvest and steal browser information (history, passwords, etc) 22->76 32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-02-27 08:51:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=thapcvc2fn7xjagu75yu2gdu7oviopfagxslqvkhesgozqvo72tq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
04377a42bf3b120450e0e71b6a956705c367098a7e003113a26e9161166684e5
AgentTesla
4e6f22754b821f8870cc30809cd60cd3535653072f22356d7958fae2fe48df78
AgentTesla
5e8119622389d8ee840a2e9429a31d5fad907bd25c2fff9e81f969a6111af092
AgentTesla
bd010d6ec97048a7017725d3c45eef92c619abfff8ac0d8557d4325c23c662e2
AgentTesla
e68a0da390baf3802baa117bce98b4b3bcbd4f0d0f1355df483d1c5366206921
AgentTesla
+ 527 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240227-pxbtysgh83/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/12d5d1fa-98fd-485e-8eaf-52810b34b51c/
SH256 hash:
5c20da1b73946ca59ac95b25d0b2297f9bd601b82e74bc6b02d54f7c5fdbd283
MD5 hash:
6cadf0a54d3069dfc64fe750d03b9511
SHA1 hash:
a11c5ef576e370fd1fb3000b09d9073226d17970
Link:
https://www.unpac.me/results/12d5d1fa-98fd-485e-8eaf-52810b34b51c/
SH256 hash:
0190398cd1ee7458b2ad4de5bae10989d4f63420c848cc3c80a3c69296dc383f
MD5 hash:
970503effbe2981f2044430e63d4fb4e
SHA1 hash:
5a4c26491580bd7f79c8a4805ef36e9ecf3f1556
Link:
https://www.unpac.me/results/12d5d1fa-98fd-485e-8eaf-52810b34b51c/
SH256 hash:
f7fb78f641ae82f92b0f5a4461fa587c68d78af422d5fc2872a48eda1abfdbc2
MD5 hash:
d87a22a05689fa6208514c6eaae391ee
SHA1 hash:
1697c4ffc68278aedb6818735fce0a69f898bd51
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/12d5d1fa-98fd-485e-8eaf-52810b34b51c/
Parent samples :
5093ccae45df7361b5afd22d5b5f08df3449a0d07d32c8d346c66a11260c7628
4e6f22754b821f8870cc30809cd60cd3535653072f22356d7958fae2fe48df78
99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7
b0c181a0f1fd9d84a6e71cddb2e60ab73458503c19fbd7b137f4558c4fd0956c
24c9acb63f0609eb55be6942137bad343c21e28c0bdb3a4a415e35c39a4c2ba6
SH256 hash:
99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7
MD5 hash:
bc485238868f7f97201b319323655d75
SHA1 hash:
bd4b0788506c4b89f8f337e562b18a0a487cf7d7
Link:
https://www.unpac.me/results/12d5d1fa-98fd-485e-8eaf-52810b34b51c/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/99c0f1545a2b/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/99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

Malspam

AgentTesla

zip 50216d508a3b28f28751505cc488256c15516ccf18fc3d9e42ea3bbe09323006

AgentTesla

Executable exe 99c0f1545a2b7f7480d4ff714d1874fbaa873ca035e4b85547248cecc2aefea7

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/477994/
  
Dropped by
SHA256 50216d508a3b28f28751505cc488256c15516ccf18fc3d9e42ea3bbe09323006
  
Dropped by
MD5 4e11ab4221b6dc01a22ee0a194ee3426

Comments