MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405. 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


Formbook


Vendor detections: 16


Intelligence 16 IOCs YARA 16 File information Comments
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SHA256 hash: 18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405
SHA3-384 hash: 77796fe25986e687460226a2cf0b42c952c46ef11a95a0502f68a4fde8461f15a096f058ec665338444a75838c2bb859
SHA1 hash: 7cc3b821be599a0ba3d7ee0d3b7b986a66840246
MD5 hash: 9f8a840aff151e707bfd7e42d5b76618
humanhash: early-sweet-diet-zulu
File name:SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.23180.8848
Download: download sample
Signature Formbook
Create hunting rule
File size:667'648 bytes
First seen:2024-03-12 08:33:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:HMsJTENl3KLnvrmVIUMD1UoS2cHOTkctIdEu5CkDfg7XIqt52uwok4ACQyp9Voh:1xENlcnvhHxUucnIGCkrat52jot7Qypg
TLSH T17CE423B73818E265C2B99A7AA945E05142F43135B091D3DABD8F2B9ED3F33D1C483497
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)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
357
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405.exe
Verdict:
Malicious activity
Analysis date:
2024-03-12 08:34:42 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/4f1d7da5-f361-4031-88b8-c073b5cde680

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/478740/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.23180.8848.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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65f0137d87137159d43ded63/reports/e5c3963d-88f9-4b8b-bde6-0df16bf57443/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405
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/0f4e3ca9-9f68-44fd-8dae-b51ac17747e4
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/1407324
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1407324 Sample: SecuriteInfo.com.W32.MSIL_K... Startdate: 12/03/2024 Architecture: WINDOWS Score: 100 42 mail.karthikagro.in 2->42 44 ip-api.com 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 12 other signatures 2->56 8 SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.23180.8848.exe 7 2->8         started        12 FNVUjxdWAbS.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\FNVUjxdWAbS.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmpC44A.tmp, XML 8->40 dropped 58 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->58 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->62 70 4 other signatures 8->70 14 SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.23180.8848.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 22 8->20         started        22 schtasks.exe 1 8->22         started        64 Antivirus detection for dropped file 12->64 66 Multi AV Scanner detection for dropped file 12->66 68 Machine Learning detection for dropped file 12->68 24 FNVUjxdWAbS.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 46 mail.karthikagro.in 68.178.238.224, 49709, 49713, 49714 AS-26496-GO-DADDY-COM-LLCUS United States 14->46 48 ip-api.com 208.95.112.1, 49708, 49712, 80 TUT-ASUS United States 14->48 28 conhost.exe 18->28         started        30 WmiPrvSE.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->72 74 Tries to steal Mail credentials (via file / registry access) 24->74 76 Tries to harvest and steal browser information (history, passwords, etc) 24->76 36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dbuxwyp7toqjsxueldgzisuw2dqnowybjz3pdf4kkhw55rldwqcq._file
Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240312-kge48aef73/
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 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
Unpacked files
SH256 hash:
06a1ae787e808d6287de314be8bec64ef2e0d3bc1bf2ea71ae268c7b8fb19e2d
MD5 hash:
91b39e533d48f5fa25ac604da90b3d8d
SHA1 hash:
f5dadf1e8fcbe64609e4cd78a27e2810f7a6e69e
Link:
https://www.unpac.me/results/3027b57e-3d26-46a8-b2b7-37314af9d3c6/
SH256 hash:
c8c1020fe926cc1851b73c1915ad32e2fc393dccb402782aca8f4ea6379ba84d
MD5 hash:
ef7cf89d9ec52b18a8f5b6ee49820f46
SHA1 hash:
dcf9cb9bb3f72ca4b3cc0c00b27bd9ce10b554bb
Link:
https://www.unpac.me/results/3027b57e-3d26-46a8-b2b7-37314af9d3c6/
SH256 hash:
c10c9b0882bac6f788f48b4dabe3291b14e639e650f2b9fcb0bc174ac92ae02b
MD5 hash:
7c7fb6daa78beb69128991ff893143ed
SHA1 hash:
c01bb99984b12b84129db80eae1d5d8341a358e2
Link:
https://www.unpac.me/results/3027b57e-3d26-46a8-b2b7-37314af9d3c6/
SH256 hash:
634d8ec6f4411266dac4dcc48dc2208bbf68d20ff915d053074f3b8d301918a7
MD5 hash:
ce708d677379bd5b25aeab6d2e5cd27c
SHA1 hash:
b81762196b474587ff4da7d5162fcca02eee604a
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_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
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INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/3027b57e-3d26-46a8-b2b7-37314af9d3c6/
Parent samples :
18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405
88737e32661e323c947753fd7c8ca1abd141e7c917dc12730a5d6634be6847fc
SH256 hash:
f35ea89ebaa7ea4f06ee80c9e50a4d68fe91b723625b0bad84f9efe983f9031b
MD5 hash:
9b0b726e9abe1e2d5efb84cfd0b54e2d
SHA1 hash:
85a4eb8f0691b8ae422ade6767fe7ba94acca356
Link:
https://www.unpac.me/results/3027b57e-3d26-46a8-b2b7-37314af9d3c6/
SH256 hash:
18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405
MD5 hash:
9f8a840aff151e707bfd7e42d5b76618
SHA1 hash:
7cc3b821be599a0ba3d7ee0d3b7b986a66840246
Link:
https://www.unpac.me/results/3027b57e-3d26-46a8-b2b7-37314af9d3c6/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/18697b61ff9b/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/18697b61ff9ba0995e8458cd944a96d0e0d75b014e76f1978a51eddec563b405

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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
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_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.

Cape
Cape
https://www.capesandbox.com/analysis/478740/

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 (HIGH_ENTROPY_VA)high

Comments