MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23cc653ccf677673adb0aef167fdc3e661a401eb9774bad371b7aac17e71e072. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23cc653ccf677673adb0aef167fdc3e661a401eb9774bad371b7aac17e71e072
SHA3-384 hash: 3fe7941d528cc414e23af78de7e79df337ea0377d8fb9191601ccf04b1bbc8e72ae5c87db15fcfc5a82adbd37e5430b1
SHA1 hash: ad68d81e4beeee72c5b70a1403ed9d241923d512
MD5 hash: 1a8dd785f1b5ad00aef250b2ddb7760c
humanhash: bulldog-yellow-orange-december
File name:Muestra de orden de compra.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'152'512 bytes
First seen:2021-12-14 17:56:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:9YRxzUs9RfuyRk7SZcnWpaddNW2/Qxmw2vlZNwc5sxWBmac3S:w7ffbkAQdooBN6i4
Threatray 10'023 similar samples on MalwareBazaar
TLSH T1E9350294A378BF31D87F5BFA84A0624983FD650735E2E77A4CC4B0CA5926780CF06997
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
233
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Muestra de orden de compra.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-12-14 18:01:26 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/b8549b7d-ec5d-466c-b129-30a0b0f7c975

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/214077/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
hacktool obfuscated packed
Link:
https://www.filescan.io/uploads/61b8daf347bb875c085db381/reports/7d8b00c1-ba3e-4364-b2d9-8f6a07543cb8/overview
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/f097b4c3-8c40-4f4e-a4a3-af10c224d5e4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/907322
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 539797 Sample: Muestra de orden de compra.... Startdate: 14/12/2021 Architecture: WINDOWS Score: 100 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 13 other signatures 2->54 10 Muestra de orden de compra.pdf.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\...\qDQzmuDwYa.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp8FB6.tmp, XML 10->40 dropped 58 Writes to foreign memory regions 10->58 60 Adds a directory exclusion to Windows Defender 10->60 62 Injects a PE file into a foreign processes 10->62 14 RegSvcs.exe 10->14         started        17 RegSvcs.exe 10->17         started        19 powershell.exe 25 10->19         started        21 schtasks.exe 1 10->21         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 23 explorer.exe 14->23 injected 72 Tries to detect virtualization through RDTSC time measurements 17->72 27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        process8 dnsIp9 42 elianedefalco.com 66.235.200.147, 49689, 80 CLOUDFLARENETUS United States 23->42 44 www.topdogiadung.com 207.148.64.157, 49688, 80 AS-CHOOPAUS United States 23->44 46 www.elianedefalco.com 23->46 56 System process connects to network (likely due to code injection or exploit) 23->56 31 help.exe 23->31         started        signatures10 process11 signatures12 74 Modifies the context of a thread in another process (thread injection) 31->74 76 Maps a DLL or memory area into another process 31->76 78 Tries to detect virtualization through RDTSC time measurements 31->78 34 cmd.exe 1 31->34         started        process13 process14 36 conhost.exe 34->36         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/23cc653ccf677673adb0aef167fdc3e661a401eb9774bad371b7aac17e71e072/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2021-12-14 17:57:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
11 of 45 (24.44%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=epggkpgpm53hhlnqv3ywp7od4zq2iapls52lvu3rw6vmc7tr4bza._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1e83eab755128ae8f4bcdade071b08cc6fae1ad62ff9fe29aae62b3e30ea28bb
Formbook
45e8fd9c2d454cbd2012f8cb1a3799fd70a470e5e82485c0df4f8b330e0c8ac5
Formbook
698f6787f4dd123d46ee4a815cb68ad7a430180e527716c1e7dd9c662a66f8bb
Formbook
85c25c523bf8a24c2d4eda60e343729175635dfd590cb3e42732ecc27e55b0d3
Formbook
9d37fb95eefc5396c3aee5e5c4525b373821cd151f7fc5b2d3805f0fb0056a4a
Formbook
d3d8ab2d49b0e893933192b1dbc35e4d58e67efc8e09621d28acccc75a48b29b
Formbook
fefb2946d721f2f8149ce1291c33bbd13d31590c573d0b0d3838824a76327154
Formbook
+ 10'013 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dv9n rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211214-wjkm9shbgr/
Behaviour
Creates scheduled task(s)
Gathers network information
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
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.elianedefalco.com/dv9n/
Unpacked files
SH256 hash:
91247d29e38c5d0736f69467ea73ab3b5c5af447002f4fec5aef94fa0910ea49
MD5 hash:
aff6bd42cdae47f707eb7f7d7963cbb7
SHA1 hash:
9a760d8c0bd93904227152211c9ce9418cd79858
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3925dc85-a654-4849-ae1f-ce8a0b0fa4bb/
Parent samples :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 hash:
d65a8343e83f133c810ef7f08e21df2ae5c2d3428693984bd50ce2cfdaceb67b
MD5 hash:
ef0dacb9486649e2bc49673c3e4398ff
SHA1 hash:
e7ce03d793c48eb76cdc6b000f094e6f2e176309
Link:
https://www.unpac.me/results/3925dc85-a654-4849-ae1f-ce8a0b0fa4bb/
SH256 hash:
d147a7b229d72dece4455c4fc96fac30240ee4aceb6ef51be07e395eb16f171c
MD5 hash:
b9b14e3152c0173dc6ae8d43e8658490
SHA1 hash:
70d41c0f729d1da152115faf8c8c1b31ee241c0f
Link:
https://www.unpac.me/results/3925dc85-a654-4849-ae1f-ce8a0b0fa4bb/
SH256 hash:
23cc653ccf677673adb0aef167fdc3e661a401eb9774bad371b7aac17e71e072
MD5 hash:
1a8dd785f1b5ad00aef250b2ddb7760c
SHA1 hash:
ad68d81e4beeee72c5b70a1403ed9d241923d512
Link:
https://www.unpac.me/results/3925dc85-a654-4849-ae1f-ce8a0b0fa4bb/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/23cc653ccf67/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/23cc653ccf677673adb0aef167fdc3e661a401eb9774bad371b7aac17e71e072

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 23cc653ccf677673adb0aef167fdc3e661a401eb9774bad371b7aac17e71e072

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/214077/

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