MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5. 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: 19


Intelligence 19 IOCs YARA 16 File information Comments
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SHA256 hash: e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5
SHA3-384 hash: 92a219d586091b0836919952bb64f5d45249c4c0c2953192df1aea68ec21c76f4a2891949fa96cc997041859cc823c3a
SHA1 hash: 9eca96ef06673d9800a008e18f86fc2569633b15
MD5 hash: df6a3df979ff89cc133fd2e56a3b0c7b
humanhash: johnny-three-jersey-double
File name:productXsamplesXpdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'148'448 bytes
First seen:2024-09-03 06:10:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5946b66c0c248992121c77a3b48fcbde (6 x Formbook, 2 x MassLogger)
ssdeep 49152:euAEE6l/kZzz3uBytwA6cYAyhEvFT4W1ed4zW2Z:ZuzWU5Z
Threatray 26 similar samples on MalwareBazaar
TLSH T1D1A5BE14E3A801A8E467D738CA659333D6B079565730E58F0A89D6462F73ED2AF7F302
TrID 47.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
35.2% (.EXE) InstallShield setup (43053/19/16)
8.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon e0e4a3a6a4b8b8a8 (37 x Formbook, 9 x AZORult, 9 x Loki)
Reporter lowmal3
Tags:exe FormBook signed

Code Signing Certificate

Organisation:Microsoft Code Signing PCA 2011
Issuer:Microsoft Code Signing PCA 2011
Algorithm:sha256WithRSAEncryption
Valid from:2024-09-02T13:59:04Z
Valid to:2025-09-02T13:59:04Z
Serial number: 16a2e33b1c50d8678c35cf3567951de2
Thumbprint Algorithm:SHA256
Thumbprint: 6b2752edd2e3c2c3bdd04c70b23d222fd1d96124772293c54f05b06ffbcade5f
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
369
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
productXsamplesXpdf.exe
Verdict:
Malicious activity
Analysis date:
2024-09-03 06:11:58 UTC
Tags:
stealer formbook xloader
Link:
https://app.any.run/tasks/88b3f93f-1c22-44f9-891a-e7bf3782b3eb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.14318.18972.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d6a87af3d7ccf99f8fac19
Tags:
Encryption Execution Network Static Stealth Swotter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file
Launching a process
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching cmd.exe command interpreter
Creating a file in the %temp% directory
Searching for synchronization primitives
Creating a window
Unauthorized injection to a recently created process
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint hacktool lolbin microsoft_visual_cc overlay packed regedit remote shell32
Link:
https://www.filescan.io/uploads/66d6a877155061779f2f96bb/reports/d7b37382-3eac-4517-8700-14fe0172ab02/overview
Verdict:
Malicious
Labled as:
Win64/GenKryptik.HAYP trojan
Link:
https://www.hybrid-analysis.com/sample/e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/16cb20c6-8870-4341-8c9a-23242a2a352e
Result
Threat name:
FormBook, LummaC Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1503222
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Drops PE files to the user root directory
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Sigma detected: Steal Google chrome login data
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1503222 Sample: productXsamplesXpdf.exe Startdate: 03/09/2024 Architecture: WINDOWS Score: 100 79 www.sacksmantenimiento.store 2->79 81 www.mobilferrari.com 2->81 83 10 other IPs or domains 2->83 109 Multi AV Scanner detection for domain / URL 2->109 111 Suricata IDS alerts for network traffic 2->111 113 Found malware configuration 2->113 115 13 other signatures 2->115 11 productXsamplesXpdf.exe 1 3 2->11         started        15 explorer.exe 2->15         started        17 svchost.exe 2->17         started        signatures3 process4 dnsIp5 73 C:\Users\user\productXsamplesXpdf.exe, PE32+ 11->73 dropped 127 Drops PE files to the user root directory 11->127 129 Writes to foreign memory regions 11->129 131 Allocates memory in foreign processes 11->131 135 3 other signatures 11->135 20 ilasm.exe 11->20         started        23 powershell.exe 23 11->23         started        25 conhost.exe 11->25         started        133 Query firmware table information (likely to detect VMs) 15->133 77 127.0.0.1 unknown unknown 17->77 file6 signatures7 process8 signatures9 117 Modifies the context of a thread in another process (thread injection) 20->117 119 Maps a DLL or memory area into another process 20->119 121 Sample uses process hollowing technique 20->121 125 3 other signatures 20->125 27 explorer.exe 36 2 20->27 injected 123 Loading BitLocker PowerShell Module 23->123 31 conhost.exe 23->31         started        process10 dnsIp11 85 chicagocarpetcleaneril.com 15.197.225.128, 49715, 49716, 80 TANDEMUS United States 27->85 137 System process connects to network (likely due to code injection or exploit) 27->137 33 explorer.exe 18 27->33         started        37 productXsamplesXpdf.exe 2 27->37         started        39 productXsamplesXpdf.exe 27->39         started        41 4 other processes 27->41 signatures12 process13 file14 69 C:\Users\user\AppData\...\O11logrv.ini, data 33->69 dropped 71 C:\Users\user\AppData\...\O11logri.ini, data 33->71 dropped 87 Detected FormBook malware 33->87 89 Tries to steal Mail credentials (via file / registry access) 33->89 91 Tries to harvest and steal browser information (history, passwords, etc) 33->91 107 3 other signatures 33->107 43 cmd.exe 2 33->43         started        47 firefox.exe 33->47         started        93 Multi AV Scanner detection for dropped file 37->93 95 Writes to foreign memory regions 37->95 97 Allocates memory in foreign processes 37->97 49 iexplore.exe 37->49         started        51 powershell.exe 37->51         started        53 conhost.exe 37->53         started        99 Adds a directory exclusion to Windows Defender 39->99 101 Sample uses process hollowing technique 39->101 103 Injects a PE file into a foreign processes 39->103 55 wmplayer.exe 39->55         started        57 powershell.exe 39->57         started        59 conhost.exe 39->59         started        61 cmd.exe 39->61         started        105 Tries to detect virtualization through RDTSC time measurements 41->105 signatures15 process16 file17 75 C:\Users\user\AppData\Local\Temp\DB1, SQLite 43->75 dropped 139 Tries to harvest and steal browser information (history, passwords, etc) 43->139 63 conhost.exe 43->63         started        141 Modifies the context of a thread in another process (thread injection) 49->141 143 Maps a DLL or memory area into another process 49->143 145 Sample uses process hollowing technique 49->145 147 Loading BitLocker PowerShell Module 51->147 65 conhost.exe 51->65         started        67 conhost.exe 57->67         started        signatures18 process19
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-09-03 03:39:15 UTC
File Type:
PE+ (Exe)
Extracted files:
17
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4omcwhf5grc6w2hbo7cxqej7wljvwtwzet5525egqqmenr5fx22q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0371d6e1e7638e52af5cdef7265500ebd3426a0e3754afcf0b4f431d30f2025c
Formbook
08b07b63633d2eba94040bd8e878525018fba9c354cfece62bd750e0ad7cc4a9
Formbook
3ca79e899fc4afb051d79323ae71ec356bd8a8cff6cebbfba6c8ce80f41db2a3
Formbook
4990d4c5600664a439e09e9eea416eee51d021284bc8fba006aa3bebbfb11175
Formbook
8d278608d1d1c4c5b6c048020c23351e75203066af1ae1e63c5c5ac0170cd3de
Formbook
+ 16 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:kmge credential_access discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/240903-gxlp6azhmd/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Runs regedit.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Credentials from Password Stores: Credentials from Web Browsers
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/55364e0c-da48-4f7a-828e-8112cb1aff57
Unpacked files
SH256 hash:
e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5
MD5 hash:
df6a3df979ff89cc133fd2e56a3b0c7b
SHA1 hash:
9eca96ef06673d9800a008e18f86fc2569633b15
Link:
https://www.unpac.me/results/8e117d83-b3bf-49b7-9b06-d94b1c8fb6dd/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e3982b1cbd34/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/e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:Jupyter_infostealer
Create hunting rule
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Malspam

Formbook

Executable exe e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5

(this sample)

  
Delivery method
Distributed via e-mail attachment

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::VirtualAllocExNuma
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThreadpoolIo
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::FreeConsole
KERNEL32.dll::GetConsoleWindow
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptDestroyKey
bcrypt.dll::BCryptGenerateSymmetricKey
bcrypt.dll::BCryptGenRandom
bcrypt.dll::BCryptOpenAlgorithmProvider
bcrypt.dll::BCryptCloseAlgorithmProvider
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

Comments