MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 65e72e73312c4f4b1b721cc8a2ffea2e473bb4c225918e545183bce15f6662d5. 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 3 File information Comments
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SHA256 hash: 65e72e73312c4f4b1b721cc8a2ffea2e473bb4c225918e545183bce15f6662d5
SHA3-384 hash: 2366fb9b7d304392fefd1eb714587a21473485d5e701a8498cc4e05ce1b718f90bbaf314c6d31c970cb2c2bf0b7cad04
SHA1 hash: 969f51abb7a74b366877c1ad7d2963b070e79af4
MD5 hash: f5e23bf213a4fbbc33bb921573dd89d5
humanhash: single-ceiling-indigo-alabama
File name:new order.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:471'552 bytes
First seen:2021-12-16 03:51:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'477 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:fEw5uHoA5QfJoQP4v8jvMQCzgwx099YQ5pWFGTTgJ9sRENuSK3:TYoA5GdP40gQZwirYwWFPWSK3
TLSH T1F0A4024477AD9B27D13C9BFE5551A05043F1A037A113EB9CAFC670EB2BB2F418142AA7
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/214428/
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:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61bab7e481d232372003c9ad/reports/ba1eb686-5ade-4e0f-92c7-864c37142d02/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/ad87e85e-e304-41fb-ab42-ca4cd44e7e28
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/908249
Signature
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Double Extension
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 540727 Sample: new order.pdf.exe Startdate: 16/12/2021 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Yara detected AntiVM3 2->47 49 10 other signatures 2->49 10 new order.pdf.exe 3 2->10         started        process3 file4 39 C:\Users\user\...\new order.pdf.exe.log, ASCII 10->39 dropped 59 Injects a PE file into a foreign processes 10->59 14 new order.pdf.exe 10->14         started        17 new order.pdf.exe 10->17         started        19 new order.pdf.exe 10->19         started        21 2 other processes 10->21 signatures5 process6 signatures7 61 Modifies the context of a thread in another process (thread injection) 14->61 63 Maps a DLL or memory area into another process 14->63 65 Sample uses process hollowing technique 14->65 67 Queues an APC in another process (thread injection) 14->67 23 explorer.exe 14->23 injected process8 process9 25 rundll32.exe 23->25         started        signatures10 51 Self deletion via cmd delete 25->51 53 Modifies the context of a thread in another process (thread injection) 25->53 55 Maps a DLL or memory area into another process 25->55 57 Tries to detect virtualization through RDTSC time measurements 25->57 28 explorer.exe 2 157 25->28         started        31 cmd.exe 1 25->31         started        33 wuapihost.exe 25->33         started        35 explorer.exe 25->35         started        process11 dnsIp12 41 192.168.2.1 unknown unknown 28->41 37 conhost.exe 31->37         started        process13
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/65e72e73312c4f4b1b721cc8a2ffea2e473bb4c225918e545183bce15f6662d5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-16 03:52:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mxts44zrfrhuwg3sdtekf77kfzdtxngcewiy4vcrqo6ocx3gmlkq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:g42t loader rat suricata
Link:
https://tria.ge/reports/211216-ee3jvabhek/
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
c0ae973c7a926b12ad656424582fc3049ae2ba593772b2aed38d2bcbda56b30c
MD5 hash:
eeebe5fd6b011e876b6af6aca1c4f83f
SHA1 hash:
e2dde61a96c08af3949cfc992332dadae53bed51
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f893ae61-a4c1-40a2-a169-141ee5fff3f7/
Parent samples :
0b22d4b672b09f31bb394b2fbf41f01e4068afc1c6cab7686f27252ee2a9304f
65e72e73312c4f4b1b721cc8a2ffea2e473bb4c225918e545183bce15f6662d5
abe1699085aa69511517e6c66c12aa08fab471ce1b3f98ad5ae6190fc769532d
SH256 hash:
4bd7ccb130fa54789d26b0154abe884e1b01ca2135b1f913adcbe0c3ccd6e445
MD5 hash:
1d19054a0102be52508a3bee970fff20
SHA1 hash:
881c6ffdb6f5f257a150ce2ecec23b4ca426cad5
Link:
https://www.unpac.me/results/f893ae61-a4c1-40a2-a169-141ee5fff3f7/
SH256 hash:
eae91814869df4f236cbff6a46ebbe8fbe707f286b0958355ee845f0e9a192ad
MD5 hash:
7e6a74ed84756574be475767be92b774
SHA1 hash:
474224066f15bd0bce5e5ef7bf188e26d9405d37
Link:
https://www.unpac.me/results/f893ae61-a4c1-40a2-a169-141ee5fff3f7/
SH256 hash:
65e72e73312c4f4b1b721cc8a2ffea2e473bb4c225918e545183bce15f6662d5
MD5 hash:
f5e23bf213a4fbbc33bb921573dd89d5
SHA1 hash:
969f51abb7a74b366877c1ad7d2963b070e79af4
Link:
https://www.unpac.me/results/f893ae61-a4c1-40a2-a169-141ee5fff3f7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/65e72e73312c4f4b1b721cc8a2ffea2e473bb4c225918e545183bce15f6662d5

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 65e72e73312c4f4b1b721cc8a2ffea2e473bb4c225918e545183bce15f6662d5

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/214428/

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