MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f373dca0591ab9127485c7c3176eb2d5b639b5281837486589884ce8f24d9dde. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f373dca0591ab9127485c7c3176eb2d5b639b5281837486589884ce8f24d9dde
SHA3-384 hash: 9117b7d1b0f31156ebae95b4632f766ad3021ca08b457d1f67b3e7f442bd269b578aa9efe23430cc3c752947fd82e6ae
SHA1 hash: 4447ee88c195f1c92b593e1e03f94b3ca2927d7f
MD5 hash: 7571fc968cca64f640978a346a67401f
humanhash: berlin-venus-bacon-happy
File name:7571fc968cca64f640978a346a67401f
Download: download sample
Signature Formbook
Create hunting rule
File size:872'448 bytes
First seen:2022-06-16 07:24:03 UTC
Last seen:2022-06-16 07:52:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:48yhLuyyJO00XGpVmHClv5qngRRdGdkLsmx7F:4VLuyyJO00Mvlwg3cdkNBF
TLSH T16A0512133E685317D05D43F9E8324CB427366E5AB661E79E1C863DCF1932B208D4ABA7
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
255
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/280571/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.34043.1970.3711.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
fareit formbook packed
Link:
https://www.filescan.io/uploads/62aadad06ca90a5b22c5a91c/reports/89884218-4d58-48ec-ab3d-1830d0e45e65/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4aa76fd4-bdb3-4d6d-8c5c-2e53c4baeddb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1014328
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
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: 646826 Sample: aiG8SjvvjK Startdate: 16/06/2022 Architecture: WINDOWS Score: 100 31 www.weddingbyneus.com 2->31 33 www.tuyenxanh.com 2->33 35 11 other IPs or domains 2->35 43 Snort IDS alert for network traffic 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 7 other signatures 2->49 11 aiG8SjvvjK.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\aiG8SjvvjK.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 aiG8SjvvjK.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.cortesdisenosroutercnc.com 93.185.100.165, 49800, 80 VSHOSTINGCZ Czech Republic 18->37 39 www.tntpowerspeedagility.com 75.2.115.196, 49805, 80 AMAZON-02US United States 18->39 41 6 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 svchost.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f373dca0591ab9127485c7c3176eb2d5b639b5281837486589884ce8f24d9dde/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-16 01:33:34 UTC
AV detection:
14 of 41 (34.15%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6nz5ziczdk4re5efy7bro3vs2w3dtnjida3uqzmjrbgor4sntxpa._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:itq4 loader rat
Link:
https://tria.ge/reports/220616-h8dpcsggal/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
c2139ddc5b60e872e2e4dbbdb52244810b0cd8e55b76ee7d8f57ba7580301258
MD5 hash:
7f35ef4240e3b0f54a42e9ecb89600b2
SHA1 hash:
3450a538c755a35326d7a83c7cac72c3792b1595
Link:
https://www.unpac.me/results/7c8ebe40-c26b-4f43-b42b-97293f7c6620/
SH256 hash:
5e95b92999dc337f367d2c8e91e68daadbcdfc537d2d11fa2612ce68a58e8d04
MD5 hash:
e3df2dd40f0ce5dcd593a52653983ca4
SHA1 hash:
d7d895a35867dc41c8a03ab5ec3aa4e38e1a08a3
Link:
https://www.unpac.me/results/7c8ebe40-c26b-4f43-b42b-97293f7c6620/
SH256 hash:
bc2e28feb669d97417e8ef8f191b7e4c7e87eae43299deb809c6b534d7ccfe58
MD5 hash:
3eaf0811c69110ad267fdda1bc722e7f
SHA1 hash:
f1d1fb6194bf8cfb9eea4e63b32fa22e205a9e94
Link:
https://www.unpac.me/results/7c8ebe40-c26b-4f43-b42b-97293f7c6620/
SH256 hash:
6871e3fc257bd687b4613d10db9035b0c0befcc13fecdd6bbb97f9b46eaaf3bc
MD5 hash:
11327cc1077e11e39e82a40d8c175bfb
SHA1 hash:
200e4a92fa3571fa9eb5e7ecda20721eb4795faf
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/7c8ebe40-c26b-4f43-b42b-97293f7c6620/
Parent samples :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 hash:
f373dca0591ab9127485c7c3176eb2d5b639b5281837486589884ce8f24d9dde
MD5 hash:
7571fc968cca64f640978a346a67401f
SHA1 hash:
4447ee88c195f1c92b593e1e03f94b3ca2927d7f
Link:
https://www.unpac.me/results/7c8ebe40-c26b-4f43-b42b-97293f7c6620/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f373dca0591a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/f373dca0591ab9127485c7c3176eb2d5b639b5281837486589884ce8f24d9dde

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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.

Web download

Formbook

Executable exe f373dca0591ab9127485c7c3176eb2d5b639b5281837486589884ce8f24d9dde

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/280571/
  
URLhaus
https://urlhaus.abuse.ch/url/2240027/

Comments


Avatar
zbet commented on 2022-06-16 07:24:15 UTC

url : hxxp://198.12.81.20/mail/mail.exe