MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f
SHA3-384 hash: 4904c03b6fe591cbbdeef2c1cd4dcae504f8dc3ad9fea8a3bbc674f9532bad556e0ffb48853182eefb2e416638917920
SHA1 hash: c815d1f6ec84ce3cc9ae098045032d01210f6584
MD5 hash: 3c15663abc554741be3de91a550ac0ae
humanhash: sink-artist-west-south
File name:a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f
Download: download sample
Signature Formbook
Create hunting rule
File size:733'184 bytes
First seen:2024-12-03 14:54:07 UTC
Last seen:2024-12-05 15:49:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:0cir1S2IoOAc6/5rZGmy4OiGZno/ZX28j7xBDqtanEZgKHKL90S24sEmGq/sVXM3:diG9o13hUInE+KIsXJWXM2NtCmIe0
Threatray 3'665 similar samples on MalwareBazaar
TLSH T140F4F15076289927C4BA5BF10430EA7613FB6E997812F3DA8DD9BCEB35F77806600253
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
406
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
email (3).eml
Verdict:
Malicious activity
Analysis date:
2024-10-15 07:42:44 UTC
Tags:
arch-exec evasion smtp exfiltration stealer
Link:
https://app.any.run/tasks/34b3fd1a-34d5-46b0-b5e3-582147be0505

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Dropper.Nanocore-10025638-0
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=674f1c5912e85e185e755807
Tags:
agenttesla lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Connecting to a non-recommended domain
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
nanocore packed packed packer_detected
Link:
https://www.filescan.io/uploads/674f1bcde17bdb6c4d962540/reports/508296e7-35d1-4a6a-b9e2-603f7225a386/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/61c902c0-0d84-4ee7-b1e8-d47c483478c4
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1567560
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
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
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
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 ftp login credentials
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 AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1567560 Sample: Hlx2hL1z8B.exe Startdate: 03/12/2024 Architecture: WINDOWS Score: 100 24 mail.apexrnun.com 2->24 26 ip-api.com 2->26 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 10 other signatures 2->38 8 Hlx2hL1z8B.exe 4 2->8         started        signatures3 process4 file5 22 C:\Users\user\AppData\...\Hlx2hL1z8B.exe.log, ASCII 8->22 dropped 40 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->40 42 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->42 44 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->44 46 3 other signatures 8->46 12 Hlx2hL1z8B.exe 15 2 8->12         started        16 powershell.exe 23 8->16         started        signatures6 process7 dnsIp8 28 ip-api.com 208.95.112.1, 49721, 80 TUT-ASUS United States 12->28 30 mail.apexrnun.com 185.196.9.150, 49725, 587 SIMPLECARRIERCH Switzerland 12->30 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->48 50 Tries to steal Mail credentials (via file / registry access) 12->50 52 Tries to harvest and steal ftp login credentials 12->52 54 Tries to harvest and steal browser information (history, passwords, etc) 12->54 56 Loading BitLocker PowerShell Module 16->56 18 WmiPrvSE.exe 16->18         started        20 conhost.exe 16->20         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-10-14 12:06:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcmgix2afhtufsrgd5biy6mfzogfafmgysgdlqdmijyma54dhkpq._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
07e7e02b535db6f43ff43945aa322faf362d8925918e70aee11c8057cf4dff9b
Formbook
27c7743f007f1ec0ca3003ba4448aeeeeb3b7237083ffedcdf7bbb4add43db03
Formbook
47b44af25ffbeb20e2b0537b25f78374177dea4b6bd61ae8b0c3adb8c69bf110
Formbook
90b112bdd91653ba38fbc373ed28c7bf9467f67f64d24f1aca0dd2a4829f245d
Formbook
cd60ea86b574b6b511ce6a6aff1314ce71b1953e169792e3e76a36913e85ea23
Formbook
+ 3'655 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/241203-saffeazlf1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
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
Command and Scripting Interpreter: PowerShell
AgentTesla
Agenttesla family
Verdict:
Malicious
Tags:
External_IP_Lookup Win.Dropper.Nanocore-10025638-0
YARA:
n/a
Link:
https://app.threat.zone/submission/64f4bc91-0627-4a7a-b124-56a7fc26990b
Unpacked files
SH256 hash:
06102d05d2ac26a627ae77f207c21b567cf3fe366ad76a97adde8fc4af27d07e
MD5 hash:
711047b1b2410828ea2f11c778be9b93
SHA1 hash:
92f1420b2a330c1d115e779a34d5f7ef1b099e41
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/fc7c0f84-e46b-4c59-be7f-957e71940b8e/
SH256 hash:
0a9e668b23fdd273acb8ac8096e435e09f581d67203cf2475ef6f90e6b0965e2
MD5 hash:
4f9ade14f96d7c93f918682e5edb11fe
SHA1 hash:
6955a5974802c075aacefd6836e73cd1b68a02e4
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
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/fc7c0f84-e46b-4c59-be7f-957e71940b8e/
Parent samples :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 hash:
3ed0497db6b560687a36da292e8d20585885c022fd5bca6ab7126bfde406b31f
MD5 hash:
89e2fbfac2d18d7708a7458c453f44bf
SHA1 hash:
50c07ed86f0adc6fce1a6fbe3434a08154a3620b
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/fc7c0f84-e46b-4c59-be7f-957e71940b8e/
Parent samples :
86564d4471500d3932d0afddc8a0a524982e6b7f3a70630d47e214d31bd166e5
3dcbee6ee102a689e41b9198c27fceed7962f5ce3861721032898e5771087d50
a6e3235b896751de88268e16897a971fb6f68c06c63566714fbc70a5f78d4fda
ff1d10747a911b5fcdae2653611d1c1bf3222658d3b1e174c992667b91041f90
a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f
df7bcf222c6ce1cbb9050cfe39bf4af502e89e51b066a961a0aa8e425a268896
9b817418b2dc2a4d5051236d919c52dbbc463088de8bb8deeb3a7f516bc47435
SH256 hash:
a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f
MD5 hash:
3c15663abc554741be3de91a550ac0ae
SHA1 hash:
c815d1f6ec84ce3cc9ae098045032d01210f6584
Link:
https://www.unpac.me/results/fc7c0f84-e46b-4c59-be7f-957e71940b8e/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a898645f4029/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/a898645f4029e742ca261f428c7985cb8c501586c48c35c06c4270c077833a9f

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: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:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

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