MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674. 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 19 File information Comments
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SHA256 hash: c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674
SHA3-384 hash: e299a4b9adab0138ad4e731f240c68f6959395bbd774501c16eed148ffbe0d66f48be733337c336dad3081f9d6cfd618
SHA1 hash: e86280a55b25942737dcb66a400251a1abfabe7b
MD5 hash: 8700cc5884c50cc4beb338d302b19d38
humanhash: lake-oregon-sink-florida
File name:Ammsjehiorr.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:749'056 bytes
First seen:2024-03-06 13:50:22 UTC
Last seen:2024-03-11 13:34:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:ZrcUg+DA28oxaWyF95HY66HuUSzjApbhtWNvKecIN8dh+yiRBiwR2n+R:ZrcU7Afoxy/5Tfv4IN8dnwG+R
TLSH T1FAF4CF5D23114862CB6AA735D973D31A1A16DEBB8583920753C6923E322B7FF2FE1701
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
350
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674.exe
Verdict:
Malicious activity
Analysis date:
2024-03-06 14:01:17 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/6e58108d-f86a-4b58-8a44-e541bf5f68a7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
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Win.Trojan.EmbeddedReversedDLL-9940922-0
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Win.Trojan.Generic-10014419-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
net_reactor packed packed
Link:
https://www.filescan.io/uploads/65e874c8b4fd15550487b6b5/reports/a717135a-5301-4795-98a5-b43ecf94259b/overview
Verdict:
Malicious
Labled as:
MSIL.Androm.Generic
Link:
https://www.hybrid-analysis.com/sample/c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5fb9ccd9-3bc2-47ec-91e6-dd57f0bce9b8
Result
Threat name:
AgentTesla, PureLog Stealer
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1404055
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Creates multiple autostart registry keys
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
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)
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1404055 Sample: Ammsjehiorr.exe Startdate: 06/03/2024 Architecture: WINDOWS Score: 100 42 mail.oceanskylogistics.in 2->42 44 api.ipify.org 2->44 46 Snort IDS alert for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 8 other signatures 2->52 7 Ammsjehiorr.exe 1 3 2->7         started        11 Asaby.exe 1 2->11         started        13 tKLxPt.exe 3 2->13         started        15 2 other processes 2->15 signatures3 process4 file5 36 C:\Users\user\AppData\Roaming\Asaby.exe, PE32 7->36 dropped 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->64 66 Creates multiple autostart registry keys 7->66 68 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->68 17 Ammsjehiorr.exe 16 5 7->17         started        70 Antivirus detection for dropped file 11->70 72 Multi AV Scanner detection for dropped file 11->72 74 Machine Learning detection for dropped file 11->74 22 Asaby.exe 14 4 11->22         started        24 tKLxPt.exe 13->24         started        26 tKLxPt.exe 13->26         started        28 Asaby.exe 15->28         started        30 tKLxPt.exe 15->30         started        signatures6 process7 dnsIp8 38 mail.oceanskylogistics.in 43.255.154.57, 49700, 49705, 49710 AS-26496-GO-DADDY-COM-LLCUS Singapore 17->38 40 api.ipify.org 104.26.13.205, 443, 49699, 49701 CLOUDFLARENETUS United States 17->40 32 C:\Users\user\AppData\Roaming\...\tKLxPt.exe, PE32 17->32 dropped 34 C:\Users\user\...\tKLxPt.exe:Zone.Identifier, ASCII 17->34 dropped 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->54 56 Tries to steal Mail credentials (via file / registry access) 17->56 58 Creates multiple autostart registry keys 17->58 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->60 62 Tries to harvest and steal browser information (history, passwords, etc) 30->62 file9 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-03-06 13:50:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zhaj23ccrymvqj7hphc4wwfv7uzp2qx7lantjqvgnmzf4tie2z2a._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
zgrat
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Score:
  10/10
Tags:
family:agenttesla family:zgrat keylogger persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/240306-q5s9mscd2t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
e2f37aa2909be37fb63e7f18cb72b85f1a2598d1202b26d329573f966234d0cc
MD5 hash:
082dbdcf094afde8f3c0d80b5c96cf83
SHA1 hash:
dcf192ded3960497d1e3e155637e8d8d31e654f8
Link:
https://www.unpac.me/results/eeac9de3-a16c-4abd-9464-580bfec22319/
SH256 hash:
2ac102982ee97e46d377364f1431febdc4ec783dfa7fa41f4dc5947a90e4e044
MD5 hash:
8fbd6a3aca0dfc3d33e6402521a73842
SHA1 hash:
8503edb0cbdf75da41a9dadeee60bfc1a73aee6e
Link:
https://www.unpac.me/results/eeac9de3-a16c-4abd-9464-580bfec22319/
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/eeac9de3-a16c-4abd-9464-580bfec22319/
SH256 hash:
cef10ca37f241451aa9d08bd5515f3da8323c36dff1482af5fad9a87ea877e38
MD5 hash:
e12bd73834a2f33a7d4cd228738e73c3
SHA1 hash:
47734ba498d3018281146b31d87a43345297ab05
Detections:
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
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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Link:
https://www.unpac.me/results/eeac9de3-a16c-4abd-9464-580bfec22319/
Parent samples :
11d7212106c1e7d65ca5b3a3d6c197775e224c151b89900de265e6efcbb68322
45bdc1b6250045529b8332c7fcca84f7215c66de929b2ae7a10be86fee2924c5
d15a53b03ae3d6aebeb2d08c1ab71ccace7a418ea6413f73085f60154ca682e0
c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674
SH256 hash:
c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674
MD5 hash:
8700cc5884c50cc4beb338d302b19d38
SHA1 hash:
e86280a55b25942737dcb66a400251a1abfabe7b
Detections:
Typical_Malware_String_Transforms
Create hunting rule
Link:
https://www.unpac.me/results/eeac9de3-a16c-4abd-9464-580bfec22319/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c9c09d6c428e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/c9c09d6c428e195827e779c5cb58b5fd32fd42ff581b34c2a66b325e4d04d674

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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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:Typical_Malware_String_Transforms
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Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
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.

  
Delivery method
Other

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