MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 045c15ef3a76b61d487b30e3e554c77afbc4f3fc17078d3818b5392de608a92e. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments 1

SHA256 hash: 045c15ef3a76b61d487b30e3e554c77afbc4f3fc17078d3818b5392de608a92e
SHA3-384 hash: bf7cb4c8aab6fdc320b7f3d5f63b2f5e6f6f101b18f93ec80a9f02ed3e04aca1776a19220ce517e970dbff165649f30a
SHA1 hash: d786ede11a082980a2d765c542d614c7b4ea4c86
MD5 hash: bba699eb866ad63a76c6607bea3ece75
humanhash: finch-vermont-muppet-spaghetti
File name:bba699eb866ad63a76c6607bea3ece75
Download: download sample
Signature Formbook
File size:299'655 bytes
First seen:2021-11-29 17:35:35 UTC
Last seen:2021-11-29 20:39:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGig+DMD+pnrxsOMX5/EfxWeSDy2F1AnusFi9XG5qERaqtK7yRKj:M+oDOsOA5cpW1/6nusFi92/YqtK7yY
Threatray 11'813 similar samples on MalwareBazaar
TLSH T161541251A2C69567D3B20730073ABBFFC77BA3A42276B90307446C7B35659CAD606622
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 :
2
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bba699eb866ad63a76c6607bea3ece75
Verdict:
Malicious activity
Analysis date:
2021-11-29 17:45:01 UTC
Tags:
installer

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
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
DNS request
Result
Malware family:
n/a
Score:
  0/10
Tags:
n/a
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
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 GhostRat
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Yara detected GhostRat
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 530574 Sample: TgkdNrxH26 Startdate: 29/11/2021 Architecture: WINDOWS Score: 100 31 www.thursdaynightthriller.com 2->31 33 thursdaynightthriller.com 2->33 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for dropped file 2->45 47 5 other signatures 2->47 11 TgkdNrxH26.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\eplequtnlor.dll, PE32 11->29 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 TgkdNrxH26.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 35 nanasyhogar.com 50.31.177.38, 49804, 80 SERVERCENTRALUS United States 18->35 37 www.qiantangguoji.com 18->37 39 www.nanasyhogar.com 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Uses netsh to modify the Windows network and firewall settings 18->51 22 netsh.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-29 11:14:28 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:nk6l rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.rthearts.com/nk6l/
Unpacked files
SH256 hash:
045c15ef3a76b61d487b30e3e554c77afbc4f3fc17078d3818b5392de608a92e
MD5 hash:
bba699eb866ad63a76c6607bea3ece75
SHA1 hash:
d786ede11a082980a2d765c542d614c7b4ea4c86
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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: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 045c15ef3a76b61d487b30e3e554c77afbc4f3fc17078d3818b5392de608a92e

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2021-11-29 17:35:37 UTC

url : hxxp://appsmanager.alert.com.mt/jnt.exe