MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 657cc831fe3eeaafccde4fe707832b998b699b1e7b525bc2d2fbcb5bbe3c7cd7. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 657cc831fe3eeaafccde4fe707832b998b699b1e7b525bc2d2fbcb5bbe3c7cd7
SHA3-384 hash: 9254e80b1cee4dd4b71c4026319de2e51bdf5484dd1195490d56fdb1f55a643a4485a83f4da66ce0c8c73a2aae1c0197
SHA1 hash: e5247c85b2735cece7b114db445ac7b98739b333
MD5 hash: 8c7184463be150691489096717df0e38
humanhash: ink-mirror-sweet-mockingbird
File name:Invoice #765400.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'299'456 bytes
First seen:2023-10-23 13:16:54 UTC
Last seen:2023-10-23 13:34:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:jFSMy5IBGtmQLZ91uk9v7JbGEYQMGhLHnvzxIwvmm2ieWpBxxw:JSMGTbxZQZGhLHvzxImHTz
Threatray 426 similar samples on MalwareBazaar
TLSH T1A155442C08F84922C161E07EDFD4EA17F2808CD6668C9D9687C68F595A1397BF09BD3D
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 c6e4d8c8c8ca3c98 (3 x AgentTesla)
Reporter cocaman
Tags:AgentTesla exe INVOICE

Intelligence

File Origin
# of uploads :
2
# of downloads :
308
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Invoice #765400.exe
Verdict:
Malicious activity
Analysis date:
2023-10-23 13:17:32 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/aea3280d-cbd2-4373-a9e8-ae7bf6786116

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
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
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6536725058fd0a907339e38f/reports/194a0d2b-7f60-4951-9ff6-b71de2d97b4d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/657cc831fe3eeaafccde4fe707832b998b699b1e7b525bc2d2fbcb5bbe3c7cd7
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e57f75eb-744d-4c8f-965b-dddd425fc874
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1330593
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 strings
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1330593 Sample: Invoice_#765400.exe Startdate: 23/10/2023 Architecture: WINDOWS Score: 100 40 premium184.web-hosting.com 2->40 42 api4.ipify.org 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 Antivirus / Scanner detection for submitted sample 2->54 56 10 other signatures 2->56 8 QFsoicEKaryfl.exe 5 2->8         started        11 Invoice_#765400.exe 7 2->11         started        signatures3 process4 file5 58 Antivirus detection for dropped file 8->58 60 Multi AV Scanner detection for dropped file 8->60 62 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->62 64 Machine Learning detection for dropped file 8->64 14 QFsoicEKaryfl.exe 8->14         started        17 schtasks.exe 8->17         started        36 C:\Users\user\AppData\...\QFsoicEKaryfl.exe, PE32 11->36 dropped 38 C:\Users\user\AppData\Local\...\tmp33FC.tmp, XML 11->38 dropped 66 Uses schtasks.exe or at.exe to add and modify task schedules 11->66 68 Adds a directory exclusion to Windows Defender 11->68 70 Injects a PE file into a foreign processes 11->70 19 Invoice_#765400.exe 15 2 11->19         started        22 powershell.exe 23 11->22         started        24 powershell.exe 23 11->24         started        26 schtasks.exe 1 11->26         started        signatures6 process7 dnsIp8 72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->72 74 Tries to steal Mail credentials (via file / registry access) 14->74 76 Tries to harvest and steal browser information (history, passwords, etc) 14->76 28 conhost.exe 17->28         started        46 api4.ipify.org 173.231.16.77, 443, 49716, 49720 WEBNXUS United States 19->46 48 premium184.web-hosting.com 162.0.215.22, 587 ACPCA Canada 19->48 30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/657cc831fe3eeaafccde4fe707832b998b699b1e7b525bc2d2fbcb5bbe3c7cd7
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/657cc831fe3eeaafccde4fe707832b998b699b1e7b525bc2d2fbcb5bbe3c7cd7/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2023-10-13 15:40:04 UTC
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mv6mqmp6h3vk7tg6j7tqpazltgfwtgy6pnjfxqws7pfvxpr4ptlq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
03eb475c31001a1695cf0dd132828e8455d43becb69b0cd6b3af6f59a06649bd
AgentTesla
28604f556f60165325c32dfa4a99efda916026618f0d61602fdabd858608fbbd
AgentTesla
393ad633aa2e88f596d747a007ab75fe7a3e71227d2b4281ad1b32ce7fea0ced
AgentTesla
a266e4535729d94c2c389e3d705c59162cf9cb21bc4d521edc61f2affef3e20c
AgentTesla
c48c301c70e75c95d192049ed30c1d2f4d32717b67139aad468a6de1d5550dca
AgentTesla
cd71376c12e5a0c3fdd2ea32556623ef987eaa4330d88547996bb29c444cafa6
AgentTesla
d024c15eff9d9394460aa031dab8d1753a5e9bc335d50d257eec687d552cce93
AgentTesla
d35dce5a33e43611c39ea134ece8746a4192f1bfd8c1577d7ebd77c0ebd66120
AgentTesla
db765e3ae32dab0e207e927fa48ca963404819122f9b094908001aa4d3ee7b94
AgentTesla
f8fe2b2ea77e10ff5a8256bc177f299d30ec5601518d6fd27de2d599d516a114
AgentTesla
+ 416 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/231023-qjcprsgh3x/
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
a040efb5ce92995b5d40fd2536c8ad6a93f2d8584a3dd52f07cdb0b34c9e6e29
MD5 hash:
a5a52675690de850e3de6c05a9bd885f
SHA1 hash:
fd953edf2e910fbb43c9e6d4c8d48632bb4e55c6
Link:
https://www.unpac.me/results/65106a01-df3f-4367-9707-dc93ef39fa20/
SH256 hash:
7511472ab9dcef93f13eb2138b31437d743ec645fd6a9cd78646ab9989174c3c
MD5 hash:
ce204acf63e87fa7f71cf96796b2410f
SHA1 hash:
ade25a9e8a14f992094abbb1760bc6a6bc4c5d01
Link:
https://www.unpac.me/results/65106a01-df3f-4367-9707-dc93ef39fa20/
SH256 hash:
6a3edcf0f1ba3fc26a92c5e5b757d29d16cd9c41cd3f547eaeec665e8b39a079
MD5 hash:
d55bdb3593664d806794d00025390081
SHA1 hash:
9427c8da57698d0a8520f85ed12809896b6f3f0e
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
Link:
https://www.unpac.me/results/65106a01-df3f-4367-9707-dc93ef39fa20/
Parent samples :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 hash:
e7c9ff8519774eefb66d826ba1a10b4b8e05b082111fb306106649897290c242
MD5 hash:
b3c5147bc4c7645777a556b085446b19
SHA1 hash:
292acd0deaa0f1ec49150909f3993c23cd0037a6
Link:
https://www.unpac.me/results/65106a01-df3f-4367-9707-dc93ef39fa20/
SH256 hash:
657cc831fe3eeaafccde4fe707832b998b699b1e7b525bc2d2fbcb5bbe3c7cd7
MD5 hash:
8c7184463be150691489096717df0e38
SHA1 hash:
e5247c85b2735cece7b114db445ac7b98739b333
Link:
https://www.unpac.me/results/65106a01-df3f-4367-9707-dc93ef39fa20/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/657cc831fe3e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
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

File information

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

Malspam

AgentTesla

rar ae4237ed1856e85fbb153facdf9aec4bbec7e4d32bd3f22628129b886fb44acb

AgentTesla

Executable exe 657cc831fe3eeaafccde4fe707832b998b699b1e7b525bc2d2fbcb5bbe3c7cd7

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 ae4237ed1856e85fbb153facdf9aec4bbec7e4d32bd3f22628129b886fb44acb
  
Dropped by
MD5 fd56eba296bcac1351c1752f412c971d

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