MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c365b6985fd96e0f9596e0e17370ef537d786473e490dfb144ade8fedc5f2ce. 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 6 File information Comments
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SHA256 hash: 2c365b6985fd96e0f9596e0e17370ef537d786473e490dfb144ade8fedc5f2ce
SHA3-384 hash: ca3d68f1c68c921725d8bfe6a50bd5d47c587884b11d290c57c2ddbc8ccd7666b9567a7c26e1479da1d038dc9c454651
SHA1 hash: b2eb4ec39716a2ee523372ad443df85f54ba1fc6
MD5 hash: 6bca65813eeda79ba5ff4674fd4f831b
humanhash: chicken-bulldog-nuts-bulldog
File name:Confirm received PO 4500640396.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'189'888 bytes
First seen:2021-08-16 11:23:51 UTC
Last seen:2021-08-16 11:44:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:ArFxb7FYgblhBewLhuXmXGrcWx/lND6hEhd73:Kyc1ewLhu1rTNNDWE
Threatray 7'866 similar samples on MalwareBazaar
TLSH T1C545E73916B82B27E079E369E6E44417B3E0945FB225ED58BCDA03E74206F4265C373E
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Confirm received PO 4500640396.exe
Verdict:
Malicious activity
Analysis date:
2021-08-16 11:25:01 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/993102fc-950f-40bc-9425-52ac0be36cc1

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/179504/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.998.18407.9268.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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/152faff0-a42d-4296-a760-c6941bb724dc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/833448
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 (e.g. based on Emerging Threat rules)
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: 465878 Sample: Confirm received PO 4500640... Startdate: 16/08/2021 Architecture: WINDOWS Score: 100 31 www.54w-x126v.net 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 7 other signatures 2->45 11 Confirm received PO 4500640396.exe 3 2->11         started        signatures3 process4 file5 29 C:\...\Confirm received PO 4500640396.exe.log, ASCII 11->29 dropped 55 Injects a PE file into a foreign processes 11->55 15 Confirm received PO 4500640396.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.curtisbigelow.net 199.34.228.159, 49737, 80 WEEBLYUS United States 18->33 35 www.thebandaiderepair.com 74.220.199.6, 49736, 80 UNIFIEDLAYER-AS-1US United States 18->35 37 9 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 chkdsk.exe 18->22         started        signatures11 process12 signatures13 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 53 Tries to detect virtualization through RDTSC time measurements 22->53 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/2c365b6985fd96e0f9596e0e17370ef537d786473e490dfb144ade8fedc5f2ce/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-08-16 11:24:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fq3fw2mf7wlob6kznyhbonyo6u35pbshhzeq36yujlpi73of6lha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1f842cf49a031ad6112edf767d3022d47391b39fd3bda6e7c456f5815f8bf742
Formbook
21819dfbcb4f450bc55706acc971444f6f3452604dc0c19a0b04f2e21732987b
Formbook
3edf6811850efc722b39737bf3623a42127e728f0c32a0a6ab7c66044838d307
Formbook
5023ffb96d6d21805c48f275dbb208a1671ab8dd7f3c170ca4dba1ac08c075f9
Formbook
b61e941f98080f431ec35c165703e2d18957fcc2b386286eeaa7a274ded8e0b3
Formbook
ee929bc954e0c858ca17de372ed70ec02343b1c48ab6631c07c60550a8da7b4d
Formbook
+ 7'856 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ipa8 loader rat suricata
Link:
https://tria.ge/reports/210816-bekqwg3cp6/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.desarrollosolucionesnavarro.com/ipa8/
Unpacked files
SH256 hash:
f983da48ac2fd562b4a60f65633c6d5783e1779df39ce325b5e1c86e4030cc75
MD5 hash:
1e2eda83043bcf638d404c49e1a88b00
SHA1 hash:
e91f775f6d57d0ccb81e54cdf77a304d3684a153
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/43e2f149-9ff9-476f-b40f-cc8036816ff2/
Parent samples :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 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/43e2f149-9ff9-476f-b40f-cc8036816ff2/
SH256 hash:
229bc307e77adfc26aa5df35f6affbc46755b966b0d035c7bc6aeb1caee73901
MD5 hash:
3be05844247c7867dc4291fbc7814275
SHA1 hash:
6bdd47dc6612f1d9b88bc393560ef8f88e31c59f
Link:
https://www.unpac.me/results/43e2f149-9ff9-476f-b40f-cc8036816ff2/
SH256 hash:
2c365b6985fd96e0f9596e0e17370ef537d786473e490dfb144ade8fedc5f2ce
MD5 hash:
6bca65813eeda79ba5ff4674fd4f831b
SHA1 hash:
b2eb4ec39716a2ee523372ad443df85f54ba1fc6
Link:
https://www.unpac.me/results/43e2f149-9ff9-476f-b40f-cc8036816ff2/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/2c365b6985fd/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/2c365b6985fd96e0f9596e0e17370ef537d786473e490dfb144ade8fedc5f2ce

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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
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.

Malspam

Formbook

rar 75de6a436c06db361958df9e1cd39e7e72e44a8e202058c5dc93233a5b135e6f

Formbook

Executable exe 2c365b6985fd96e0f9596e0e17370ef537d786473e490dfb144ade8fedc5f2ce

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 75de6a436c06db361958df9e1cd39e7e72e44a8e202058c5dc93233a5b135e6f
Cape
Cape
https://www.capesandbox.com/analysis/179504/

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