MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ba3166fa29eedff427b62c2d1b05984949a1ac87a34ffa2ab95f4404e96d0e7. 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: 7


Intelligence 7 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8ba3166fa29eedff427b62c2d1b05984949a1ac87a34ffa2ab95f4404e96d0e7
SHA3-384 hash: 99492bffe21b8ae34503491ec04bd71095a90e4102825b99b1fea4582fa9129d9541abb46331560c8edb1edc45017f2e
SHA1 hash: f8dd1f7ec5259168dc98367c3eaa998f08b41a9d
MD5 hash: 14f5bfcb44b9511f2cfac6f29ab55898
humanhash: magazine-charlie-south-ink
File name:14f5bfcb44b9511f2cfac6f29ab55898.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:809'472 bytes
First seen:2022-04-27 07:26:05 UTC
Last seen:2022-04-27 08:11:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:2ccUgNnYk0vGyQ/z4fCgpEIi1Um/MLoFTZykdDy/jNimI0l1i:2PUgNnp0vGwCgyZTZykdDy7NimI0
TLSH T174056C366B3AB6CD9BCBDBBE663C4CCA20705EA254739F78865119401037E5C262B47F
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
247
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/267110/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.14519.14550.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Launching the default Windows debugger (dwwin.exe)
Creating a file
Launching a process
Launching cmd.exe command interpreter
Sending a custom TCP request
DNS request
Searching for synchronization primitives
Sending an HTTP GET request
Possible injection to a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6268f0260d3e2bd52d0ac3c9/reports/2aa8387a-1f8c-468c-999d-370e252c0574/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f6d52b87-99ed-42c3-910b-20c757b713bf
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/983839
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
Contains functionality to hide user accounts
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
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 submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 616331 Sample: knLUdROliq.exe Startdate: 27/04/2022 Architecture: WINDOWS Score: 100 31 iconicbeauty.co 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 10 other signatures 2->45 11 knLUdROliq.exe 1 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\knLUdROliq.exe.log, ASCII 11->29 dropped 55 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->55 57 Writes to foreign memory regions 11->57 59 Allocates memory in foreign processes 11->59 61 Injects a PE file into a foreign processes 11->61 15 rasphone.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 2 other signatures 15->69 18 explorer.exe 6 15->18 injected process9 dnsIp10 33 j-stra.com 18->33 35 loancreditscan.com 185.53.177.31, 49764, 80 TEAMINTERNET-ASDE Germany 18->35 37 9 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 cmstp.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8ba3166fa29eedff427b62c2d1b05984949a1ac87a34ffa2ab95f4404e96d0e7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-27 07:27:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:arh2 evasion loader rat suricata
Link:
https://tria.ge/reports/220427-h9k5tshcc5/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
e7953ca0a6cb74e4838b9ffd5d2f59996266aaeba40ad7e86b69d919f0dd901d
MD5 hash:
2d7324029af20ad4fd6192cc8dfdd14b
SHA1 hash:
d35333a7ce33be8466abb3a7eff2c0ce37f8c4cc
Link:
https://www.unpac.me/results/48339102-290e-45ce-97c4-3027cbc685ff/
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
Link:
https://www.unpac.me/results/48339102-290e-45ce-97c4-3027cbc685ff/
SH256 hash:
8ba3166fa29eedff427b62c2d1b05984949a1ac87a34ffa2ab95f4404e96d0e7
MD5 hash:
14f5bfcb44b9511f2cfac6f29ab55898
SHA1 hash:
f8dd1f7ec5259168dc98367c3eaa998f08b41a9d
Link:
https://www.unpac.me/results/48339102-290e-45ce-97c4-3027cbc685ff/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8ba3166fa29e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/8ba3166fa29eedff427b62c2d1b05984949a1ac87a34ffa2ab95f4404e96d0e7

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe 8ba3166fa29eedff427b62c2d1b05984949a1ac87a34ffa2ab95f4404e96d0e7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2163857/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2166976/
Cape
Cape
https://www.capesandbox.com/analysis/267110/

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