MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1567a43871d7c014e23af2adf4ee07504bc1032d67413fd6a73e3e5aa7241a49. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1567a43871d7c014e23af2adf4ee07504bc1032d67413fd6a73e3e5aa7241a49
SHA3-384 hash: b151a539453e359e4af065d7862bc755c08c0002ae4ff7a95a0f7c1be110086c3280b8cfd90f725577353c78b130e764
SHA1 hash: 380e3d0abb3e1c03e10a092f2dd14b4281cda5d3
MD5 hash: 8644165dbf21993c70f4489a74cbea2e
humanhash: nineteen-skylark-johnny-crazy
File name:8644165dbf21993c70f4489a74cbea2e.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:589'312 bytes
First seen:2022-06-14 08:27:53 UTC
Last seen:2022-06-14 10:00:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:anmhtuzyC+Nvodcp6GTpwguMfHCS0rn5Mhp0HvApPMfLquV:aU+X+NFh+gXurG4Qu
TLSH T12AC4E11973F41B81FAFB8B38897511491E32BEF27412E75E29D4018E24A6F805ED6B37
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
232
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8644165dbf21993c70f4489a74cbea2e.exe
Verdict:
Suspicious activity
Analysis date:
2022-06-15 00:01:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/19f28ca5-09b1-44fa-b0fd-a622a1c5da8f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/279682/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.49168081.10014.28808.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Launching a process
Сreating synchronization primitives
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62a846d9040517c34796757e/reports/dda6b9d0-0e71-4838-9ab2-2002192469c6/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/fee083ba-2ca2-402f-bc3f-39da3655f095
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1012738
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 645237 Sample: U9SV7bZiSJ.exe Startdate: 14/06/2022 Architecture: WINDOWS Score: 100 37 www.mecontaisso.com 2->37 45 Snort IDS alert for network traffic 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 10 other signatures 2->51 11 U9SV7bZiSJ.exe 1 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\U9SV7bZiSJ.exe.log, ASCII 11->35 dropped 14 SyncHost.exe 11->14         started        17 quickassist.exe 11->17         started        process6 signatures7 65 Modifies the context of a thread in another process (thread injection) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Sample uses process hollowing technique 14->69 71 2 other signatures 14->71 19 explorer.exe 1 14->19 injected process8 dnsIp9 39 www.fxivcama.com 69.57.161.210, 49757, 80 FORTRESSITXUS United States 19->39 41 www.payphelpcenter950851354.info 45.88.202.115, 49767, 49768, 49769 ANONYMIZEEpikNetworkCH Switzerland 19->41 43 4 other IPs or domains 19->43 53 System process connects to network (likely due to code injection or exploit) 19->53 23 svchost.exe 1 12 19->23         started        signatures10 process11 signatures12 55 Tries to steal Mail credentials (via file / registry access) 23->55 57 Tries to harvest and steal browser information (history, passwords, etc) 23->57 59 Modifies the context of a thread in another process (thread injection) 23->59 61 2 other signatures 23->61 26 cmd.exe 2 23->26         started        29 cmd.exe 1 23->29         started        process13 signatures14 63 Tries to harvest and steal browser information (history, passwords, etc) 26->63 31 conhost.exe 26->31         started        33 conhost.exe 29->33         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1567a43871d7c014e23af2adf4ee07504bc1032d67413fd6a73e3e5aa7241a49/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-06-13 19:34:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
14 of 41 (34.15%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cvt2iodr27abjyr26kw7j3qhkbf4caznm5at7vvhhy7fvjzedjeq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:zgtb loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220614-kcz9lahaf4/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
41be4ef22f75eead2de64745c9926a6ccd2e67fc657c062e9d1a2f45f317de7f
MD5 hash:
1aa7ba8239b814ceab6a8e6eef1a15a8
SHA1 hash:
6a88e5bf49b02aca144238f2cd2cd13d7bb36848
Link:
https://www.unpac.me/results/9b52ff6b-5e7f-45fa-a603-50489c1e4e57/
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
Link:
https://www.unpac.me/results/9b52ff6b-5e7f-45fa-a603-50489c1e4e57/
SH256 hash:
1567a43871d7c014e23af2adf4ee07504bc1032d67413fd6a73e3e5aa7241a49
MD5 hash:
8644165dbf21993c70f4489a74cbea2e
SHA1 hash:
380e3d0abb3e1c03e10a092f2dd14b4281cda5d3
Link:
https://www.unpac.me/results/9b52ff6b-5e7f-45fa-a603-50489c1e4e57/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1567a43871d7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1567a43871d7c014e23af2adf4ee07504bc1032d67413fd6a73e3e5aa7241a49

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.

Web download

Formbook

Executable exe 1567a43871d7c014e23af2adf4ee07504bc1032d67413fd6a73e3e5aa7241a49

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2236006/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/279682/

Comments