MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e99eb13ad6ea14742e5e62076e912de73cfd9b27ae3152cd8c84bcfbfe491894. 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 2 File information Comments 1

SHA256 hash: e99eb13ad6ea14742e5e62076e912de73cfd9b27ae3152cd8c84bcfbfe491894
SHA3-384 hash: 6f2552a4806c2ef99d498f43e879f81ac7c85fbfc28c46b3f7093945abb940d1419d165fdbf3d53a30e319eca3d5b4aa
SHA1 hash: a24686151b148f86059f1bb83cd634e95594e010
MD5 hash: 7476c163fae384b390bd97c9a7a52ef3
humanhash: nuts-cardinal-louisiana-lactose
File name:7476c163fae384b390bd97c9a7a52ef3
Download: download sample
Signature Formbook
File size:306'807 bytes
First seen:2022-03-25 21:13:10 UTC
Last seen:2024-07-24 22:34:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGihBpJmGh640wOgcdkL1jibg7YP4Ki7PPIvtDT+RT87K:9BpJkwjCmPf7uf+V87K
Threatray 11'757 similar samples on MalwareBazaar
TLSH T17B642227F6C618BFF28048B24B7773B163F09394139289274F615E7731256E78E26672
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
DNS request
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe overlay packed 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.
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 597448 Sample: 9m5urGEG4F Startdate: 25/03/2022 Architecture: WINDOWS Score: 100 36 www.hs5ae.xyz 2->36 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 5 other signatures 2->54 11 9m5urGEG4F.exe 18 2->11         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\Temp\wopya.exe, PE32 11->34 dropped 14 wopya.exe 11->14         started        process6 signatures7 62 Multi AV Scanner detection for dropped file 14->62 64 Tries to detect virtualization through RDTSC time measurements 14->64 17 wopya.exe 14->17         started        process8 signatures9 40 Modifies the context of a thread in another process (thread injection) 17->40 42 Maps a DLL or memory area into another process 17->42 44 Sample uses process hollowing technique 17->44 46 Queues an APC in another process (thread injection) 17->46 20 cmstp.exe 17->20         started        23 explorer.exe 17->23 injected process10 signatures11 56 Modifies the context of a thread in another process (thread injection) 20->56 58 Maps a DLL or memory area into another process 20->58 60 Tries to detect virtualization through RDTSC time measurements 20->60 25 explorer.exe 2 150 20->25         started        28 cmd.exe 1 20->28         started        30 explorer.exe 106 20->30         started        process12 dnsIp13 38 192.168.2.1 unknown unknown 25->38 32 conhost.exe 28->32         started        process14
Threat name:
Win32.Trojan.GenericML
Status:
Malicious
First seen:
2022-03-25 21:14:19 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:r75h rat spyware stealer suricata trojan
Behaviour
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
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
e99eb13ad6ea14742e5e62076e912de73cfd9b27ae3152cd8c84bcfbfe491894
MD5 hash:
7476c163fae384b390bd97c9a7a52ef3
SHA1 hash:
a24686151b148f86059f1bb83cd634e95594e010
Malware family:
FormBook
Verdict:
Malicious
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:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
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 e99eb13ad6ea14742e5e62076e912de73cfd9b27ae3152cd8c84bcfbfe491894

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-03-25 21:13:12 UTC

url : hxxp://192.210.149.28/70/vbc.exe