MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c99f75aa4a30b9395de37da19c6062b6fde59121e314eaf1e48613a6af2ed0e0. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c99f75aa4a30b9395de37da19c6062b6fde59121e314eaf1e48613a6af2ed0e0
SHA3-384 hash: 78779649d0c44cf575c476ae3133bbbbeab224cd2f4a3b963a7c338da050aff9c1c011f4082d9183c948e3d0ad08902a
SHA1 hash: f91e810a5b72ba7c4b5c26f98ded2247504ee26d
MD5 hash: efe0050c2df3b09512e4003d5c3cf78f
humanhash: kitten-florida-fillet-iowa
File name:COMMECIAL INVOICE 260122pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:457'728 bytes
First seen:2022-02-09 10:19:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:8VO7JROAwvFjqgask2Ww2tsJYutqUUPLHhni:8VOVUYgaftvFUUPVi
TLSH T1C6A4AEB4A1A78591F10BC974267CF96502B235E3A9C60D391B793641CBEEF983F8460F
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/239377/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/620395654077c8b9a025ebac/reports/dda5bb9d-5a45-447a-8a77-6617b214abd8/overview
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fa15d3f9-9251-400e-b28e-c52fb9da21f9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/936808
Behaviour
Behavior Graph:
n/a
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c99f75aa4a30b9395de37da19c6062b6fde59121e314eaf1e48613a6af2ed0e0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-02 22:57:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
29 of 43 (67.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zgpxlkskgc4tsxpdpwqzyydcw366lejb4mkov4peqyj2nlzo2dqa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:n8bs loader rat
Link:
https://tria.ge/reports/220209-mc5v7ahhf7/
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
dd868f6769608967d3615244d33f6e8f88503caa101351338fe9e2f6df080b49
MD5 hash:
0c2beadcf112154928bd1073c4215742
SHA1 hash:
8f0006164b2acdfd43b5d65361d2f1be79c86fd6
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e3b19e80-d9b8-4678-97d9-ea612b315eb9/
Parent samples :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 hash:
6f1b89bc3013177c101fe4448340c48c0dd08d19017a798bd11c2d0f76be1fbc
MD5 hash:
60a604887b3616e3ed86d81fab0a9ebb
SHA1 hash:
8db84f5f4c569c86c69aff464b2ffc4ce3dafa20
Link:
https://www.unpac.me/results/e3b19e80-d9b8-4678-97d9-ea612b315eb9/
SH256 hash:
751e9a866b801aacc76409b2e441e4bc5c6085b08bbff6588fe1de8ee81d273d
MD5 hash:
479bc9d41981ba14172207d2a7c21263
SHA1 hash:
5baf9fc214c71cca9d3f804941dec987a7b7d67a
Link:
https://www.unpac.me/results/e3b19e80-d9b8-4678-97d9-ea612b315eb9/
SH256 hash:
c99f75aa4a30b9395de37da19c6062b6fde59121e314eaf1e48613a6af2ed0e0
MD5 hash:
efe0050c2df3b09512e4003d5c3cf78f
SHA1 hash:
f91e810a5b72ba7c4b5c26f98ded2247504ee26d
Link:
https://www.unpac.me/results/e3b19e80-d9b8-4678-97d9-ea612b315eb9/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c99f75aa4a30/report/overview.html
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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
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.

Malspam

Formbook

Executable exe c99f75aa4a30b9395de37da19c6062b6fde59121e314eaf1e48613a6af2ed0e0

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/239377/

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