MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c86c2c68e14eef2ac6a63da35633b309ef75e7f818a6bf935e56471ed5dae53. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
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SHA256 hash: 8c86c2c68e14eef2ac6a63da35633b309ef75e7f818a6bf935e56471ed5dae53
SHA3-384 hash: 847eb3cfafc5c19496e07106ce010e6299956261c7ab0e3bde792bc41414f6515428c37f72194709f36ce558bcaa1cf9
SHA1 hash: aca8beb5b8055efb907e600f0ac51160aee5a548
MD5 hash: ea0406dc2d0cfd68f8620e462406a819
humanhash: mexico-carpet-speaker-mexico
File name:file
Download: download sample
Signature Formbook
Create hunting rule
File size:394'096 bytes
First seen:2023-02-03 13:54:40 UTC
Last seen:2023-02-03 15:35:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:jYa6yIgee0WsmHcrkflbDpIHTsxLB047a/wlz9POTaZX7UWzkaJqxB:jY1gAFmHc6YgHh7a+pOmX7UyI
TLSH T1F284E0C5F94084A1EC2A5732197ADD321A577D7E50742A1D3BCE3E3B3FBB4A2A419903
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter jstrosch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
187
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-03 13:56:01 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/d2d02e6a-3fa7-468a-bff2-8e50630e4b22

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/359910/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.31367.24278.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Reading critical registry keys
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/65040/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  2/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63dd1240447edb203a029d91/reports/49f09797-47ef-4f0d-b33a-e221039f2500/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8c86c2c68e14eef2ac6a63da35633b309ef75e7f818a6bf935e56471ed5dae53
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e5abf984-cf37-40b9-a2f5-cf0ed154d3ed
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1165119
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 domain / URL
Multi AV Scanner detection for dropped file
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 797890 Sample: file.exe Startdate: 03/02/2023 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Multi AV Scanner detection for domain / URL 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 6 other signatures 2->39 9 file.exe 19 2->9         started        process3 file4 25 C:\Users\user\AppData\Local\Temp\akkanx.exe, PE32 9->25 dropped 12 akkanx.exe 9->12         started        process5 signatures6 53 Multi AV Scanner detection for dropped file 12->53 55 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->55 57 Maps a DLL or memory area into another process 12->57 15 akkanx.exe 12->15         started        process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 2 6 15->18 injected process9 dnsIp10 27 americahaseverything.com 108.179.252.52, 49735, 49736, 49737 UNIFIEDLAYER-AS-1US United States 18->27 29 houmenmarket.com 50.87.249.47, 49727, 49728, 49729 UNIFIEDLAYER-AS-1US United States 18->29 31 7 other IPs or domains 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 43 Uses netsh to modify the Windows network and firewall settings 18->43 22 netsh.exe 13 18->22         started        signatures11 process12 signatures13 45 Tries to steal Mail credentials (via file / registry access) 22->45 47 Tries to harvest and steal browser information (history, passwords, etc) 22->47 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8c86c2c68e14eef2ac6a63da35633b309ef75e7f818a6bf935e56471ed5dae53/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2023-02-02 20:27:38 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rsdmfruoctxpfldkmpndkyz3gcppoxt7qgfgx6jv4vshd3k5vzjq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:dcn0 loader rat spyware stealer trojan
Link:
https://tria.ge/reports/230203-q75qfsfe96/
Behaviour
Modifies Internet Explorer settings
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Formbook
Xloader
Unpacked files
SH256 hash:
4572b1741580ad35120a9ca45081d8e4ef67bb46693174a825246fc9b5ba439c
MD5 hash:
651b274ea722073d52880756eea7b1d6
SHA1 hash:
7300446a518a72f4de47a645d215e1e7400f1c8d
Link:
https://www.unpac.me/results/5fedf136-8ddf-4c23-aeed-6a9d38e9cbec/
SH256 hash:
8c86c2c68e14eef2ac6a63da35633b309ef75e7f818a6bf935e56471ed5dae53
MD5 hash:
ea0406dc2d0cfd68f8620e462406a819
SHA1 hash:
aca8beb5b8055efb907e600f0ac51160aee5a548
Link:
https://www.unpac.me/results/5fedf136-8ddf-4c23-aeed-6a9d38e9cbec/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8c86c2c68e14/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8c86c2c68e14eef2ac6a63da35633b309ef75e7f818a6bf935e56471ed5dae53

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
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 8c86c2c68e14eef2ac6a63da35633b309ef75e7f818a6bf935e56471ed5dae53

(this sample)

  
Delivery method
Distributed via web download
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/359910/
  
URLhaus
https://urlhaus.abuse.ch/url/2512463/

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