MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fec2a5a61617f9cc34585fe664afbb055d9dd9836a8dc41464ac08f23c03ae5b. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fec2a5a61617f9cc34585fe664afbb055d9dd9836a8dc41464ac08f23c03ae5b
SHA3-384 hash: acf95a816a263ba89ca33fe45065a71251a3b777c9a7cb53a3326c76b530eb8760852742ac32c68ba28664a4b42c3317
SHA1 hash: 127a97d41fc110a67fedf26d134211a496465b64
MD5 hash: 1e6f36484cc2f5be9f53070b4917a931
humanhash: asparagus-nuts-pasta-wisconsin
File name:INV80002-pdf-.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'178'112 bytes
First seen:2023-01-18 16:17:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:5BJ8c+fQpnbzJWzE6wJrYTSKIKTn6ALhxY:F8cwQhzJWzE6ip
TLSH T13845AE9233B0D473F88A133D45252BD81DAB7E6676B0F13A4F2739615372AFB3285149
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 0a1a185810144333 (3 x Formbook)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
INV80002-pdf-.exe
Verdict:
Malicious activity
Analysis date:
2023-01-18 16:18:33 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/7002edd8-f60b-4920-b48f-d40174622314

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/354219/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.28358.20821.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching cmd.exe command interpreter
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
75%
Tags:
packed
Link:
https://www.filescan.io/uploads/63c81bbc8352dc7065e392b0/reports/d9707020-6475-4e87-89b7-6b6978b69681/overview
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/01275797-1c57-492e-95a4-7e48bfe44081
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1154042
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 786772 Sample: INV80002-pdf-.exe Startdate: 18/01/2023 Architecture: WINDOWS Score: 100 73 Snort IDS alert for network traffic 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 Antivirus detection for URL or domain 2->77 79 9 other signatures 2->79 10 INV80002-pdf-.exe 7 2->10         started        14 pemxsJBZGdkC.exe 5 2->14         started        process3 dnsIp4 49 C:\Users\user\AppData\...\pemxsJBZGdkC.exe, PE32 10->49 dropped 51 C:\Users\...\pemxsJBZGdkC.exe:Zone.Identifier, ASCII 10->51 dropped 53 C:\Users\user\AppData\Local\...\tmp30E3.tmp, XML 10->53 dropped 55 C:\Users\user\...\INV80002-pdf-.exe.log, ASCII 10->55 dropped 87 Uses schtasks.exe or at.exe to add and modify task schedules 10->87 89 Adds a directory exclusion to Windows Defender 10->89 91 Tries to detect virtualization through RDTSC time measurements 10->91 17 INV80002-pdf-.exe 10->17         started        20 powershell.exe 21 10->20         started        22 schtasks.exe 1 10->22         started        28 2 other processes 10->28 57 192.168.2.1 unknown unknown 14->57 93 Multi AV Scanner detection for dropped file 14->93 95 Machine Learning detection for dropped file 14->95 97 Injects a PE file into a foreign processes 14->97 24 pemxsJBZGdkC.exe 14->24         started        26 schtasks.exe 1 14->26         started        file5 signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 17->65 67 Maps a DLL or memory area into another process 17->67 69 Sample uses process hollowing technique 17->69 71 Queues an APC in another process (thread injection) 17->71 30 explorer.exe 2 1 17->30 injected 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 26->38         started        process9 dnsIp10 59 www.f1cc.club 185.215.4.19, 49695, 80 TVHORADADAES Denmark 30->59 61 edi2all.biz 81.169.145.68, 49700, 80 STRATOSTRATOAGDE Germany 30->61 63 9 other IPs or domains 30->63 99 System process connects to network (likely due to code injection or exploit) 30->99 40 cscript.exe 30->40         started        43 rundll32.exe 30->43         started        signatures11 process12 signatures13 81 Modifies the context of a thread in another process (thread injection) 40->81 83 Maps a DLL or memory area into another process 40->83 85 Tries to detect virtualization through RDTSC time measurements 40->85 45 cmd.exe 40->45         started        process14 process15 47 conhost.exe 45->47         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fec2a5a61617f9cc34585fe664afbb055d9dd9836a8dc41464ac08f23c03ae5b/
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
Create hunting rule
Status:
Malicious
First seen:
2023-01-12 00:56:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
22 of 26 (84.62%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=73bkljqwc744yncyl7tgjl53avoz3wmdnkg4ifdevqepepadvznq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a09e rat spyware stealer trojan
Link:
https://tria.ge/reports/230118-trytracg35/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
d27cca09bc9c42bec002b3416b73965fd718b28c81ce9e262913e907ce458833
MD5 hash:
e4231c3a128edb95b63b80418fbeeb30
SHA1 hash:
96cc8fe6281b8fab5af3dff964a4f9ab48809271
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/0aacdd58-e27c-4d07-b6bf-5ef860ead5a7/
Parent samples :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 hash:
1c0072bd0c8fbf0e27d145a0ee7e34428936c2ddeba929d3f60e352891e7e0c6
MD5 hash:
b2d0625c46714e40a6a38238659ea9ed
SHA1 hash:
dc43d5d539eab67b7e3109d0e4894e099a1a18f8
Link:
https://www.unpac.me/results/0aacdd58-e27c-4d07-b6bf-5ef860ead5a7/
SH256 hash:
24d6e85996f90b7a007d7539a9c1281f6c1a33781ea04143f58036dcd914d2a1
MD5 hash:
b017d686c48239158aec9b8cf46ae980
SHA1 hash:
995452ca9f89eeb26b90f517adb9beecc5fe1052
Link:
https://www.unpac.me/results/0aacdd58-e27c-4d07-b6bf-5ef860ead5a7/
SH256 hash:
cc077bf6ff3b47a03b5379b85d0bac8ff2d19d5176604b55f6408277d8275321
MD5 hash:
00f559af31ee8b31943dc863e3d8f3d5
SHA1 hash:
93741e3046ca924e77bc75d4e2e89a4eca7d5916
Link:
https://www.unpac.me/results/0aacdd58-e27c-4d07-b6bf-5ef860ead5a7/
SH256 hash:
ff1b42ea7d56a37eae801adbddb7116f52a4664c0b41302736f522852edc2747
MD5 hash:
89ac57478044c57c7195943116a521e0
SHA1 hash:
1ff2bafeed795423e3538d810bda8e1e3fcdcfa5
Link:
https://www.unpac.me/results/0aacdd58-e27c-4d07-b6bf-5ef860ead5a7/
SH256 hash:
fec2a5a61617f9cc34585fe664afbb055d9dd9836a8dc41464ac08f23c03ae5b
MD5 hash:
1e6f36484cc2f5be9f53070b4917a931
SHA1 hash:
127a97d41fc110a67fedf26d134211a496465b64
Link:
https://www.unpac.me/results/0aacdd58-e27c-4d07-b6bf-5ef860ead5a7/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fec2a5a61617/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/fec2a5a61617f9cc34585fe664afbb055d9dd9836a8dc41464ac08f23c03ae5b

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe fec2a5a61617f9cc34585fe664afbb055d9dd9836a8dc41464ac08f23c03ae5b

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/354219/

Comments