MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d835bb8d896d0a858feecf968258bc9d5d53e8013e01463db68ae2b5bae8fedf. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: d835bb8d896d0a858feecf968258bc9d5d53e8013e01463db68ae2b5bae8fedf
SHA3-384 hash: d4b237ba996193367b76da42d45336c4c544b4c7710285d1c21e9a66a87b542f7247757554b037795fee2f0ffdfd8805
SHA1 hash: 15148fb5a44cfbe1f292997193f40edf02e61f70
MD5 hash: b9ae3318bd0b90467b0a83469b0c818f
humanhash: pizza-seventeen-oklahoma-blue
File name:digitization_pdf.scr
Download: download sample
Signature Formbook
File size:642'560 bytes
First seen:2021-08-23 06:50:59 UTC
Last seen:2021-08-23 08:07:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:eZWrnQD832Ce4cUv6mb6HYvzyNHkZWKVq6wi:eUcDsSUvLb6HYLAHkZtVT
Threatray 8'230 similar samples on MalwareBazaar
TLSH T148D4CF48F610E5CFFD1ABEF948913B10DA709C26460ED6836BB337ED857D2858E071A6
dhash icon 7130f8ba92d630b1 (4 x AgentTesla, 1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
317
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
digitization_pdf.scr
Verdict:
Malicious activity
Analysis date:
2021-08-23 06:55:02 UTC
Tags:
n/a

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

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
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
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 469815 Sample: digitization_pdf.scr Startdate: 23/08/2021 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for dropped file 2->46 48 9 other signatures 2->48 10 digitization_pdf.exe 6 2->10         started        process3 file4 32 C:\Users\user\AppData\...GliLhFkgSxCc.exe, PE32 10->32 dropped 34 C:\Users\user\AppData\Local\...\tmp7CC2.tmp, XML 10->34 dropped 36 C:\Users\user\...\digitization_pdf.exe.log, ASCII 10->36 dropped 58 Uses schtasks.exe or at.exe to add and modify task schedules 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 14 digitization_pdf.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 38 www.vbetturkey.com 19->38 40 825610.parkingcrew.net 75.2.81.221, 49724, 80 AMAZON-02US United States 19->40 50 System process connects to network (likely due to code injection or exploit) 19->50 25 help.exe 19->25         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 25->52 54 Maps a DLL or memory area into another process 25->54 56 Tries to detect virtualization through RDTSC time measurements 25->56 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-08-20 09:22:41 UTC
AV detection:
25 of 46 (54.35%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:e7hf rat spyware stealer suricata trojan
Behaviour
Creates scheduled task(s)
Gathers network information
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
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.celinehair.com/e7hf/
Unpacked files
SH256 hash:
c362729899c5956cfa9fc3bcf9b21ac72066a1b84a497ceb1281f76e2f55c54b
MD5 hash:
0327d1374a5ce015ad9c83c5de76e823
SHA1 hash:
e521349d9e96a4191248747c42c78b6f88fc8f63
SH256 hash:
82e470d6b0f6b9c9f2de208d118b450d5632983d54c7b980d43e6fbe53b6cddd
MD5 hash:
c0984b47ca562e508cf80980086ce15c
SHA1 hash:
7f32ef97d0f1bc02dc98f000d6e6a291fc1baa7c
SH256 hash:
d835bb8d896d0a858feecf968258bc9d5d53e8013e01463db68ae2b5bae8fedf
MD5 hash:
b9ae3318bd0b90467b0a83469b0c818f
SHA1 hash:
15148fb5a44cfbe1f292997193f40edf02e61f70
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 d835bb8d896d0a858feecf968258bc9d5d53e8013e01463db68ae2b5bae8fedf

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments