MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa. 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: 17


Intelligence 17 IOCs YARA 17 File information Comments
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SHA256 hash: 84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa
SHA3-384 hash: ea0eb892b1d1c1d621c9dd5b83276067f93151869b6c465412f75c4d21f928bd769c6bc0b50ecca0c63a3369706e2a51
SHA1 hash: 56a20bc9bbf30e0447a25018a91e52972684dd1a
MD5 hash: f7007e5d3b1d6c2833ef79b69dfe6542
humanhash: nuts-iowa-edward-august
File name:SecuriteInfo.com.Win32.PWSX-gen.2313.1743
Download: download sample
Signature Formbook
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File size:745'472 bytes
First seen:2024-02-12 17:52:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'457 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:sx3ZyS+paz6Y587JJWh3PkNYzk+1VfNzP2ixoxanAib3dYxqpC:sx3Zpaar+7JUJ3R1vqTcYKC
TLSH T1E0F4570620289EBECFD41FFAC44F1D520160FC7A5062B56778473A4876B72DEC5CA5AE
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 55a886b2b2b2964d (2 x Formbook, 2 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
323
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa.exe
Verdict:
Malicious activity
Analysis date:
2024-02-12 17:55:19 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/b57c711e-dc33-4eb3-9b8f-c0d0fc07b5e7

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/475883/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.2313.1743.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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/65ca5afe90a5367ac0c1d4d8/reports/8ab0c17b-6472-4465-86ae-ba9420276ae8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa
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/9f6b7ea8-0065-4672-b725-dbc6ad9f0d25
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1391016
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Sample uses string decryption to hide its real strings
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 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1391016 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 12/02/2024 Architecture: WINDOWS Score: 100 61 us2.smtp.mailhostbox.com 2->61 63 ip-api.com 2->63 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 Sigma detected: Scheduled temp file as task from temp location 2->73 75 11 other signatures 2->75 8 SecuriteInfo.com.Win32.PWSX-gen.2313.1743.exe 7 2->8         started        12 sNbLNzhQPFzi.exe 5 2->12         started        14 ZUHFqcY.exe 2->14         started        16 ZUHFqcY.exe 2->16         started        signatures3 process4 file5 57 C:\Users\user\AppData\...\sNbLNzhQPFzi.exe, PE32 8->57 dropped 59 C:\Users\user\AppData\Local\...\tmp3E00.tmp, XML 8->59 dropped 83 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->83 85 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->85 87 Uses schtasks.exe or at.exe to add and modify task schedules 8->87 95 2 other signatures 8->95 18 SecuriteInfo.com.Win32.PWSX-gen.2313.1743.exe 16 5 8->18         started        23 powershell.exe 23 8->23         started        37 2 other processes 8->37 89 Multi AV Scanner detection for dropped file 12->89 91 Machine Learning detection for dropped file 12->91 25 sNbLNzhQPFzi.exe 12->25         started        27 schtasks.exe 12->27         started        93 Injects a PE file into a foreign processes 14->93 29 ZUHFqcY.exe 14->29         started        31 schtasks.exe 14->31         started        33 ZUHFqcY.exe 16->33         started        35 schtasks.exe 16->35         started        signatures6 process7 dnsIp8 65 ip-api.com 208.95.112.1, 49708, 49712, 49715 TUT-ASUS United States 18->65 67 us2.smtp.mailhostbox.com 208.91.199.224, 49709, 49713, 49721 PUBLIC-DOMAIN-REGISTRYUS United States 18->67 53 C:\Users\user\AppData\Roaming\...\ZUHFqcY.exe, PE32 18->53 dropped 55 C:\Users\user\...\ZUHFqcY.exe:Zone.Identifier, ASCII 18->55 dropped 77 Tries to steal Mail credentials (via file / registry access) 18->77 79 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->79 39 conhost.exe 23->39         started        41 WmiPrvSE.exe 23->41         started        43 conhost.exe 27->43         started        45 conhost.exe 31->45         started        81 Tries to harvest and steal browser information (history, passwords, etc) 33->81 47 conhost.exe 35->47         started        49 conhost.exe 37->49         started        51 conhost.exe 37->51         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
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Status:
Malicious
First seen:
2024-02-12 16:11:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qs26dmuigfeteg5ftsrbphmo4imquxjtls3pcxc4ikc5754kz35a._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
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Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240212-wf94raag4z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
9c3e97c382fe31e81dd6f0565d86edf0b5ac596706787641fab89fa865e14cf3
MD5 hash:
111d8aad531e3bcbbd99c3b90d4b8722
SHA1 hash:
aa11428a0a5aea88f0c4df27dab58e3e8d90247a
Link:
https://www.unpac.me/results/94bcad38-e2ff-4619-9ebd-5f06ff565eb9/
SH256 hash:
06d0004381f161b3a939844d1c6d5ed2d0f4375c524e2b47cf0509194b8aee62
MD5 hash:
8fb0220f1233d7876dad275d4834aad1
SHA1 hash:
7cd3a16684cac5abaf999d1afad41a26bb527ace
Link:
https://www.unpac.me/results/94bcad38-e2ff-4619-9ebd-5f06ff565eb9/
SH256 hash:
eec85e738e3365c322d0f4372e448b666c8fd0754fd024b8781a3a8b69cad09f
MD5 hash:
7ec6c7cb795b09197580ae8c5c292537
SHA1 hash:
38975c3594a4d7a61b1d52b59f01a0db025f2ca5
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
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INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Agenttesla_type2
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INDICATOR_SUSPICIOUS_Binary_References_Browsers
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INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
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INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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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/94bcad38-e2ff-4619-9ebd-5f06ff565eb9/
Parent samples :
6aca2f44a1662c235d42bcaefaf34e0f841b34c620a77e3358156e910e5a7651
73b33d80db78b966ca0df11be61989bafd0553165564a45959fcbe570595f68d
84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa
81a7838ccb236673b22b689c771c82c6f3f28500b7e473a1f2c32635f885e98d
900d537d757fdc15a522d6643dc9071294fa5b30ecdf0807fe3fcd0f9680ce40
a245fd4c1bd3a3f93749c7e8f7165ce7873d32e3cd7185f18019355b8f393334
SH256 hash:
38e0c6d980305c75802c29c0296f16fe0e9d8ef0c387580096acbfb914a805a3
MD5 hash:
6d6dc9776d8f8feaf6f35048c87e3c85
SHA1 hash:
2a93098d71c171354d458ecabd97c5b2aca00cf4
Link:
https://www.unpac.me/results/94bcad38-e2ff-4619-9ebd-5f06ff565eb9/
SH256 hash:
84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa
MD5 hash:
f7007e5d3b1d6c2833ef79b69dfe6542
SHA1 hash:
56a20bc9bbf30e0447a25018a91e52972684dd1a
Link:
https://www.unpac.me/results/94bcad38-e2ff-4619-9ebd-5f06ff565eb9/
Malware family:
AgentTesla
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/84b5e1b28831/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/84b5e1b2883149321ba59ca2179d8ee2190a5d335cb6f15c5c4285dff78acefa

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
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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
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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
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Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
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Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
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Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
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Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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
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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

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/475883/

Comments