MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f387c8d440ec4be591a6e6962530dc493cf9b615c0557f58251c772b9e940fa. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6f387c8d440ec4be591a6e6962530dc493cf9b615c0557f58251c772b9e940fa
SHA3-384 hash: 2d00c36c18dfff4664c5ecd0806b978a4af8ff89d6e2eaeadf83e3941e714d5d1f22df048f86e7fdfa0f9a8ebddf5d58
SHA1 hash: 745f41318ec4cf06ff86c2dfa08775581b5122b7
MD5 hash: e873cfc566fc299ad450d88f7c74e998
humanhash: music-romeo-high-mirror
File name:Shipping_doc_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:754'176 bytes
First seen:2020-10-12 05:49:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 010f3e42f15e9eb57a4a9a1dad838a51 (10 x Loki, 8 x AgentTesla, 3 x MassLogger)
ssdeep 12288:5AindXhz+XwfE0CQPW7q0dzQNqJHRrUtqIkACrhOxqhzjgKNtt:yi16wf9aNzQ4lFUtqthOxwngKNt
TLSH E8F49E22E3E17433C1273A399CDB576C982EBE502D2879462FE51C4F5F3D691782A293
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mail.indobaruna.com
Sending IP: 103.93.54.21
From: Emily Chong <EmilyChong@joffrenomar.com>
Subject: RE:SHIPPING DOCUMENT-INVOICE-2020-10-11-PDF
Attachment: Shipping_document_pdf1.arj (contains "Shipping_doc_pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69896/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Sending a UDP request
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/487899
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Initial sample is a PE file and has a suspicious name
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 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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 296392 Sample: Shipping_doc_pdf.exe Startdate: 12/10/2020 Architecture: WINDOWS Score: 100 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected FormBook 2->39 41 3 other signatures 2->41 10 Shipping_doc_pdf.exe 2->10         started        process3 signatures4 49 Detected unpacking (changes PE section rights) 10->49 51 Maps a DLL or memory area into another process 10->51 53 Tries to detect virtualization through RDTSC time measurements 10->53 55 Contains functionality to detect sleep reduction / modifications 10->55 13 Shipping_doc_pdf.exe 10->13         started        process5 signatures6 57 Modifies the context of a thread in another process (thread injection) 13->57 59 Maps a DLL or memory area into another process 13->59 61 Sample uses process hollowing technique 13->61 63 Queues an APC in another process (thread injection) 13->63 16 explorer.exe 13->16 injected process7 dnsIp8 29 www.curasept.store 81.95.96.29, 49745, 80 GLOBE-AShttpwwwactive24czCZ Czech Republic 16->29 31 www.saferspine.com 16->31 33 System process connects to network (likely due to code injection or exploit) 16->33 20 wscript.exe 16->20         started        23 autofmt.exe 16->23         started        signatures9 process10 signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 25 cmd.exe 1 20->25         started        process12 process13 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6f387c8d440ec4be591a6e6962530dc493cf9b615c0557f58251c772b9e940fa/
Threat name:
Win32.Trojan.LokibotCrypt
Create hunting rule
Status:
Malicious
First seen:
2020-10-11 22:58:48 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n44hzdkeb3cl4wi2nzuweuynysj47g3blqcvp5mckhdxfopjid5a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201012-1wtdafcnge/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.digitalserver.company/mro/
Unpacked files
SH256 hash:
6f387c8d440ec4be591a6e6962530dc493cf9b615c0557f58251c772b9e940fa
MD5 hash:
e873cfc566fc299ad450d88f7c74e998
SHA1 hash:
745f41318ec4cf06ff86c2dfa08775581b5122b7
Link:
https://www.unpac.me/results/dfe3460a-d7d7-41a2-b54f-89864e3c2b4b/
SH256 hash:
0c82b7c78f81bb7652f93518cf8f5610afb46849c2c348d07d6601c55ac8b407
MD5 hash:
0ff0a10f51a94e23fa15cd7a431d465a
SHA1 hash:
786c1958a8895094edb73ea882d71ef22e518157
Link:
https://www.unpac.me/results/dfe3460a-d7d7-41a2-b54f-89864e3c2b4b/
SH256 hash:
a676f2bbd8acc7a525bdccac19edaf8372ae958b231d0367655dc3257d9dc31f
MD5 hash:
2f6bb5b6e7be25a334752fa53c949769
SHA1 hash:
17ea681feab4a5d6ae7f5fe1ec9a454798c4d57e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/dfe3460a-d7d7-41a2-b54f-89864e3c2b4b/
Parent samples :
6f387c8d440ec4be591a6e6962530dc493cf9b615c0557f58251c772b9e940fa
570578b4b03f94c6a2582d9ad32ca0ec0535307e95f2a40ad64b5b6a29037468
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6f387c8d440ec4be591a6e6962530dc493cf9b615c0557f58251c772b9e940fa

File information

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

Malspam

Formbook

zip c99e00642a1011d649c9570de9c6003a37262f7bad2235859431fe6cdd8041cb

Formbook

Executable exe 6f387c8d440ec4be591a6e6962530dc493cf9b615c0557f58251c772b9e940fa

(this sample)

  
Dropped by
MD5 aa1f24df463432642fcfa7de8413d655
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 c99e00642a1011d649c9570de9c6003a37262f7bad2235859431fe6cdd8041cb
Cape
Cape
https://www.capesandbox.com/analysis/69896/

Comments