MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6368884fc56f3c1b926949574690a9f0842632406a7d91d821971d04b4245cd8. 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 3 File information Comments

SHA256 hash: 6368884fc56f3c1b926949574690a9f0842632406a7d91d821971d04b4245cd8
SHA3-384 hash: 3426ebf6633a6be69e74fc0057c1029cabdbe663e5c3b9cbae01d55d86e54c80675c3f8448d285aaf347c4741251bd0a
SHA1 hash: 288da0fe941006d414369b4e4d8f1883148c3789
MD5 hash: 60901ca56097145db9eb0b14529039fe
humanhash: failed-jig-missouri-robin
File name:file
Download: download sample
Signature Formbook
File size:1'192'853 bytes
First seen:2022-11-11 22:40:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:uAOcZwk4PKF68Q+g8QdjHWIdFRd8w7rC2uy7Qw8tFe5J:UQuZj24p8s0yHsMv
TLSH T193451242F7D689B2C93226309C3A67516DBC7D305F14965FB3E83A5DEA314A02235FA3
TrID 91.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.6% (.EXE) Win64 Executable (generic) (10523/12/4)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
0.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b2b2b2b2b232b230 (3 x Formbook)
Reporter jstrosch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-11-12 03:20:09 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Sending a custom TCP request
Creating a file
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware overlay packed setupapi.dll shdocvw.dll shell32.dll
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found API chain indicative of sandbox detection
Injects a PE file into a foreign processes
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 dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 744279 Sample: file.exe Startdate: 11/11/2022 Architecture: WINDOWS Score: 100 57 www.briarthornoh.com 2->57 67 Malicious sample detected (through community Yara rule) 2->67 69 Antivirus detection for URL or domain 2->69 71 Yara detected FormBook 2->71 73 2 other signatures 2->73 12 file.exe 3 31 2->12         started        signatures3 process4 file5 55 C:\Users\user\AppData\Local\...\mkmvkmth.exe, PE32 12->55 dropped 15 wscript.exe 1 12->15         started        process6 process7 17 mkmvkmth.exe 1 3 15->17         started        file8 53 C:\Users\user\AppData\Local\...\RegSvcs.exe, PE32 17->53 dropped 59 Multi AV Scanner detection for dropped file 17->59 61 Found API chain indicative of sandbox detection 17->61 63 Contains functionality to inject code into remote processes 17->63 65 4 other signatures 17->65 21 RegSvcs.exe 17->21         started        24 RegSvcs.exe 17->24         started        signatures9 process10 signatures11 75 Modifies the context of a thread in another process (thread injection) 21->75 77 Maps a DLL or memory area into another process 21->77 79 Sample uses process hollowing technique 21->79 81 Queues an APC in another process (thread injection) 21->81 26 explorer.exe 21->26 injected process12 signatures13 89 Uses ipconfig to lookup or modify the Windows network settings 26->89 29 mkmvkmth.exe 1 26->29         started        32 mkmvkmth.exe 26->32         started        34 systray.exe 26->34         started        36 4 other processes 26->36 process14 signatures15 91 Writes to foreign memory regions 29->91 93 Allocates memory in foreign processes 29->93 95 Sample uses process hollowing technique 29->95 38 RegSvcs.exe 29->38         started        41 RegSvcs.exe 29->41         started        97 Injects a PE file into a foreign processes 32->97 43 RegSvcs.exe 32->43         started        45 RegSvcs.exe 32->45         started        99 Modifies the context of a thread in another process (thread injection) 34->99 101 Maps a DLL or memory area into another process 34->101 47 RegSvcs.exe 36->47         started        49 autoconv.exe 36->49         started        51 cmmon32.exe 36->51         started        process16 signatures17 83 Modifies the context of a thread in another process (thread injection) 38->83 85 Maps a DLL or memory area into another process 38->85 87 Sample uses process hollowing technique 38->87
Threat name:
Win32.Trojan.Tnega
Status:
Malicious
First seen:
2022-11-11 22:41:35 UTC
File Type:
PE (Exe)
Extracted files:
39
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:ds0f loader persistence rat spyware stealer trojan
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Executes dropped EXE
Formbook
Xloader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
791355e6298e6443b7375cc21d884dc3fd4033e6d41ac9a3d944e748f4a1c758
MD5 hash:
cce4bd6df5b94dbe2d7f55aea7b46e22
SHA1 hash:
6f554ceaf5e7d9378615b760af23d6c931df7c3b
SH256 hash:
993bfe0aa438a653f9fe2041781f73f399dc3e3a70fbee602de50d6f063b6937
MD5 hash:
9ef571e7d3fd57de57ee3ba10987bec1
SHA1 hash:
799d04a4b6324531e3630d8a6c123182a1387692
SH256 hash:
6368884fc56f3c1b926949574690a9f0842632406a7d91d821971d04b4245cd8
MD5 hash:
60901ca56097145db9eb0b14529039fe
SHA1 hash:
288da0fe941006d414369b4e4d8f1883148c3789
Please note that we are no longer able to provide a coverage score for Virus Total.

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:pdb_YARAify
Author:@wowabiy314
Description:PDB
Rule name:sfx_pdb
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:sfx_pdb_winrar_restrict
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.

File information


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

Web download

Formbook

Executable exe 6368884fc56f3c1b926949574690a9f0842632406a7d91d821971d04b4245cd8

(this sample)

  
Delivery method
Distributed via web download

Comments