MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 228e76e661fd3e328fa59d865345df6089a228cd81df4a519aa94c620edad4fb. 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: 15


Intelligence 15 IOCs YARA 17 File information Comments
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SHA256 hash: 228e76e661fd3e328fa59d865345df6089a228cd81df4a519aa94c620edad4fb
SHA3-384 hash: 4d205029e28100cd534250712fadfd4c80e69bfc1a5c5b396d5d7e2afbcd3058222f4322f1302cb60c2d985f3c126dfa
SHA1 hash: 8794104745971fda5e3f562718132d073a3816d3
MD5 hash: 7d49ce109a7d61ffc3361c4e7719134e
humanhash: paris-neptune-minnesota-undress
File name:SecuriteInfo.com.Win32.TrojanX-gen.29443.22875
Download: download sample
Signature Formbook
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File size:691'712 bytes
First seen:2024-01-31 07:26:59 UTC
Last seen:2024-01-31 07:27:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:elhlfu8liC5utKhr8j8qshDSKbbNdy8GLIwqFNHMZYj3fvkjcPMOvdWfrC/TA3p0:VKhr8bshhbbNdyxIz5mykjcEaAMAu
TLSH T159E423806AB9D379E2A92B7B6404418107F6F5DB7425C7067E45B0CF3EB3B960792F0A
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) (4505/5/1)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
532
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
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ID:
1
File name:
228e76e661fd3e328fa59d865345df6089a228cd81df4a519aa94c620edad4fb.exe
Verdict:
Malicious activity
Analysis date:
2024-01-31 07:29:36 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/cb31745a-f16f-4402-a319-93fe6f584558

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/473689/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.25395.13891.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65b9f648bc91f83c8073920c/reports/49d908f0-059e-46b1-b35d-d5e0139617c8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/228e76e661fd3e328fa59d865345df6089a228cd81df4a519aa94c620edad4fb
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/47b0bde2-b265-44fd-b835-4e33c28cef31
Result
Threat name:
AgentTesla
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1383829
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
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)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Process Patterns NTDS.DIT Exfil
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: 1383829 Sample: SecuriteInfo.com.Win32.Troj... Startdate: 31/01/2024 Architecture: WINDOWS Score: 100 61 mail.indusun.org 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.TrojanX-gen.29443.22875.exe 7 2->8         started        12 UWDRFXDhGlu.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\...\UWDRFXDhGlu.exe, PE32 8->57 dropped 59 C:\Users\user\AppData\Local\...\tmpD17C.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.TrojanX-gen.29443.22875.exe 16 5 8->18         started        23 powershell.exe 23 8->23         started        33 2 other processes 8->33 89 Multi AV Scanner detection for dropped file 12->89 91 Machine Learning detection for dropped file 12->91 93 Injects a PE file into a foreign processes 12->93 25 UWDRFXDhGlu.exe 12->25         started        35 2 other processes 12->35 27 ZUHFqcY.exe 14->27         started        37 4 other processes 14->37 29 ZUHFqcY.exe 16->29         started        31 schtasks.exe 16->31         started        signatures6 process7 dnsIp8 65 mail.indusun.org 203.124.44.180, 49735, 49737, 49739 COMSATSCommissiononScienceandTechnologyforPK Pakistan 18->65 67 ip-api.com 208.95.112.1, 49732, 49736, 49738 TUT-ASUS 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        81 Tries to harvest and steal browser information (history, passwords, etc) 29->81 43 conhost.exe 31->43         started        45 conhost.exe 33->45         started        47 conhost.exe 33->47         started        49 conhost.exe 35->49         started        51 conhost.exe 37->51         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/228e76e661fd3e328fa59d865345df6089a228cd81df4a519aa94c620edad4fb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/228e76e661fd3e328fa59d865345df6089a228cd81df4a519aa94c620edad4fb/
Threat name:
ByteCode-MSIL.Trojan.Taskun
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Status:
Malicious
First seen:
2024-01-31 03:25:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ekhhnztb7u7dfd5ftwdfgro7mce2ekgnqhpuuum2vfggedw22t5q._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/240131-h931msghgj/
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:
d2cf3273461ffa1b29715828f358368312ae4f08a731f4e449a44f6dc50e26c5
MD5 hash:
df7936d5ea0c80f3003b445c7f8deb44
SHA1 hash:
b995b22e77a11cda256e84a01ccadb85451460ed
Link:
https://www.unpac.me/results/e43b45d7-18b6-4531-bf5c-056621370ca7/
SH256 hash:
a7097659d0b8886c761709d7309bf378a7fbc7a325e2d1f4e7a1113698344f4f
MD5 hash:
d5c69b521525fc9e0ad51e65154c63aa
SHA1 hash:
9f9b885250ce857678b0941217f213d9f103f7e0
Link:
https://www.unpac.me/results/e43b45d7-18b6-4531-bf5c-056621370ca7/
SH256 hash:
8c74b49e824979f025b68484fa28c3ab967832c31592033e96b7b6857f5bbb91
MD5 hash:
29e9805e27c6724b620b3780f08f6855
SHA1 hash:
8825d40e319c715582a59f00181f834f5122a4b1
Link:
https://www.unpac.me/results/e43b45d7-18b6-4531-bf5c-056621370ca7/
SH256 hash:
6b7e6d845a9e7bf5951af9efccd18487c7177cb3bf50709e03bcc4095a84ca1c
MD5 hash:
d642749d76230936bace1adf8d5de3dd
SHA1 hash:
7200d4922f83e394b08a87113b155f836309af99
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/e43b45d7-18b6-4531-bf5c-056621370ca7/
Parent samples :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 hash:
3014b859be7cafca84f61ab3398e0832d80175d76dc6ff4a45df7b2fef39dcaf
MD5 hash:
17cbde8bc5d57e164c1daa95d1b37d0b
SHA1 hash:
4856da540fd30d018fa511c9ce705871e1e2affa
Link:
https://www.unpac.me/results/e43b45d7-18b6-4531-bf5c-056621370ca7/
SH256 hash:
228e76e661fd3e328fa59d865345df6089a228cd81df4a519aa94c620edad4fb
MD5 hash:
7d49ce109a7d61ffc3361c4e7719134e
SHA1 hash:
8794104745971fda5e3f562718132d073a3816d3
Link:
https://www.unpac.me/results/e43b45d7-18b6-4531-bf5c-056621370ca7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/228e76e661fd/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/228e76e661fd3e328fa59d865345df6089a228cd81df4a519aa94c620edad4fb

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
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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
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
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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
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: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/473689/

Comments