MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc9165f2702032e355b392fe6ada38cfd6e1eceafb5453de7991369addd266a6. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments

SHA256 hash: fc9165f2702032e355b392fe6ada38cfd6e1eceafb5453de7991369addd266a6
SHA3-384 hash: 20fc9c975ec05ec7b13d8b95197fec792fef8bb19c29b851297017250bebc8980d08731fd926bed114394e19658ae963
SHA1 hash: a02e178c8f33b48f3fa8d548762a29adcc359cac
MD5 hash: b87c1e2bb5ba0a04b614ba14b6ef91c2
humanhash: lithium-sodium-beer-minnesota
File name:TT copy for our payment.exe
Download: download sample
Signature Formbook
File size:440'320 bytes
First seen:2021-10-28 13:27:01 UTC
Last seen:2021-10-28 18:22:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 6144:JcmaW10QKkiPvTz78aClMSwG3s5hAizn6DNameCfh8qONX6xGuNaYL/s08:kWKQKlPX4aEMNJrUameEW8GF2/s08
Threatray 10'908 similar samples on MalwareBazaar
TLSH T18994E0497364F59FC0678F3A88952C209671B8736307D303A9A321AC9A2E7D9DF156F3
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 511047 Sample: TT copy for our payment.exe Startdate: 28/10/2021 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 9 other signatures 2->41 10 TT copy for our payment.exe 3 2->10         started        process3 file4 29 C:\Users\...\TT copy for our payment.exe.log, ASCII 10->29 dropped 13 TT copy for our payment.exe 10->13         started        16 TT copy for our payment.exe 10->16         started        process5 signatures6 53 Modifies the context of a thread in another process (thread injection) 13->53 55 Maps a DLL or memory area into another process 13->55 57 Sample uses process hollowing technique 13->57 59 Queues an APC in another process (thread injection) 13->59 18 explorer.exe 13->18 injected process7 dnsIp8 31 www.aprilsaak.quest 37.123.118.150, 49813, 80 UK2NET-ASGB United Kingdom 18->31 33 www.protegerfinanceservices.com 104.21.17.85, 49811, 80 CLOUDFLARENETUS United States 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 22 help.exe 18->22         started        signatures9 process10 signatures11 45 Self deletion via cmd delete 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 25 cmd.exe 1 22->25         started        process12 process13 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-10-28 13:27:05 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:r4gk rat spyware stealer trojan
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.aprilsaak.quest/r4gk/
Unpacked files
SH256 hash:
488f72fae2aebfaca4b18831390a1ad1dde7dc23da6e1ec744154772992431f6
MD5 hash:
62610ed3dd7752450a62d7c87f716643
SHA1 hash:
d2ba6386f991b5ed9e8c0cf110bfd8b522acfdc0
SH256 hash:
4d1ee061c817ea30ca4e461a4f44388662c1c1c2775be2b323858ddbc1679b35
MD5 hash:
1b6d3d31872537cc611ff4322ffc1099
SHA1 hash:
0108adafb207ce044bfb3f7933da45594c545bee
SH256 hash:
fc9165f2702032e355b392fe6ada38cfd6e1eceafb5453de7991369addd266a6
MD5 hash:
b87c1e2bb5ba0a04b614ba14b6ef91c2
SHA1 hash:
a02e178c8f33b48f3fa8d548762a29adcc359cac
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 fc9165f2702032e355b392fe6ada38cfd6e1eceafb5453de7991369addd266a6

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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