MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f80774cd7c699a392d2824b7b645a95fa0864d5a73c867999b0c5640d3011aa0. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f80774cd7c699a392d2824b7b645a95fa0864d5a73c867999b0c5640d3011aa0
SHA3-384 hash: 967c14ceca0b99df35e762dc3267fdf7726d8669f1274a638151e0d57c8970b63779df07ce63bd3b5bd391c0befe9501
SHA1 hash: 6d8302661b4a2ae9b124cd208eea837f9f861465
MD5 hash: 210e05c63fb4fbc349c5a3b6c19ff0d5
humanhash: virginia-moon-lactose-utah
File name:PAGO DE IMPUESTOS FACTURA LUNES 13 DE DICIEMBRE DE 2021,pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'304'576 bytes
First seen:2021-12-13 16:17:00 UTC
Last seen:2021-12-13 17:29:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 24576:esLB5rF5VyF3noX3P4VBUqc+YhX3dXZkSHmcdiZNimglK4k9:llxNyF2/bhlZkfcQ7imgv
TLSH T173552393B580C615C93D77F28CC64A041379BD3962E0DA9E3CEE35AA36B53D70901ADB
File icon (PE):PE icon
dhash icon 0e0c052525162b2d (22 x Formbook, 22 x RemcosRAT, 17 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PAGO DE IMPUESTOS FACTURA LUNES 13 DE DICIEMBRE DE 2021,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-12-13 16:32:58 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/95240b75-0923-4b54-8f59-e5dcfa186924

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/213605/
Detection(s):
PUA.Win.Packer.Medvedev-6482674-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b772014b267126def1c04a/reports/afa4654a-39ce-42a6-8932-24e832f33920/overview
Result
Verdict:
UNKNOWN
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/5eb63854-f6e6-496f-a878-e16475398ac6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/906444
Signature
.NET source code contains potential unpacker
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 538917 Sample: PAGO DE IMPUESTOS FACTURA L... Startdate: 13/12/2021 Architecture: WINDOWS Score: 100 32 www.thantoc.net 2->32 34 thantoc.net 2->34 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 6 other signatures 2->50 11 PAGO DE IMPUESTOS FACTURA LUNES 13 DE DICIEMBRE DE 2021,pdf.exe 3 2->11         started        14 explorer.exe 70 2->14         started        signatures3 process4 file5 30 PAGO DE IMPUESTOS ...DE 2021,pdf.exe.log, ASCII 11->30 dropped 16 PAGO DE IMPUESTOS FACTURA LUNES 13 DE DICIEMBRE DE 2021,pdf.exe 11->16         started        process6 signatures7 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Sample uses process hollowing technique 16->40 42 Queues an APC in another process (thread injection) 16->42 19 explorer.exe 16->19 injected process8 process9 21 cmmon32.exe 19->21         started        signatures10 52 Self deletion via cmd delete 21->52 54 Modifies the context of a thread in another process (thread injection) 21->54 56 Maps a DLL or memory area into another process 21->56 58 Tries to detect virtualization through RDTSC time measurements 21->58 24 cmd.exe 1 21->24         started        26 explorer.exe 1 160 21->26         started        process11 process12 28 conhost.exe 24->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f80774cd7c699a392d2824b7b645a95fa0864d5a73c867999b0c5640d3011aa0/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-12-13 16:17:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7adxjtl4ngndsljies33mrnjl6qimtk2opegpgm3brlebuybdkqa._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:bqt2 loader rat
Link:
https://tria.ge/reports/211213-trclhsdgh3/
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.ewatch-pl.com/bqt2/
Unpacked files
SH256 hash:
24fd920afbc6e9e13879bea2f457ee33083b323079fd57364b1c12f6148a8e04
MD5 hash:
b0f67a40aaa0559dd5da703ba762c1e1
SHA1 hash:
abbea105a8b7f27293f5499a37db372c5934572c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bc3e9b85-1f66-46ef-a36e-1dcb7b03bb70/
Parent samples :
9da380610110986e6d1d902e4e0cae2fa00f81380d501461bed8d57f9e92b26a
1c960c3a6713b6964b98334618b02f3b2d7b134f63841f7d621efa7e9bb5f2fc
549d64bd9bc60269b7536f13659e902bc284f3fe586e5fe2d6e9720be7643505
f80774cd7c699a392d2824b7b645a95fa0864d5a73c867999b0c5640d3011aa0
0730056cbfb7cd86025fcd5b99f94dda7829e33c768efdd11c335b47a281dfda
SH256 hash:
8083da541f38d7bf3976802d80f481069b834d8dbca32db13cb76f710411500b
MD5 hash:
03c75e5af71cf8f61731b345d10fb26a
SHA1 hash:
b4ec74ef0be085f8804711bf8f0a0e163e86f65c
Link:
https://www.unpac.me/results/bc3e9b85-1f66-46ef-a36e-1dcb7b03bb70/
SH256 hash:
3d2b85f8fa1fdab38e49ac8cacaf13a70555371d34ef4d4efed8a1c80a44ee68
MD5 hash:
a506a40cfab0c4def98b19a3ce8acb81
SHA1 hash:
06396d1f7dff431b8386e9e4cb05006e5d3ecbe7
Link:
https://www.unpac.me/results/bc3e9b85-1f66-46ef-a36e-1dcb7b03bb70/
SH256 hash:
f80774cd7c699a392d2824b7b645a95fa0864d5a73c867999b0c5640d3011aa0
MD5 hash:
210e05c63fb4fbc349c5a3b6c19ff0d5
SHA1 hash:
6d8302661b4a2ae9b124cd208eea837f9f861465
Link:
https://www.unpac.me/results/bc3e9b85-1f66-46ef-a36e-1dcb7b03bb70/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f80774cd7c69/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/f80774cd7c699a392d2824b7b645a95fa0864d5a73c867999b0c5640d3011aa0

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 f80774cd7c699a392d2824b7b645a95fa0864d5a73c867999b0c5640d3011aa0

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/213605/

Comments