MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 494b892495fb6f002fd36477446bfc59f686fe73710d55dc782de8512452e535. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 494b892495fb6f002fd36477446bfc59f686fe73710d55dc782de8512452e535
SHA3-384 hash: 873642eb2522c71cc5d8d8e76e6d8de68ea1714b405eb5eb318963e807c50fb75b2d325295b25c328e3297b3ce68cc9a
SHA1 hash: e2830744f6497321e7b4c2a49d8270ea91b923c8
MD5 hash: 95ad0de0d121d51993dc0e546f82772c
humanhash: pennsylvania-ink-arizona-florida
File name:Invoice pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:677'376 bytes
First seen:2021-04-20 14:37:30 UTC
Last seen:2021-04-20 15:57:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:5pHV+2+EVF4Cd0ix6ocmzL73KS6MapCmaZxzklPlEP+OcnVk19/EMnTfiJzRRRR6:Mil5rv7KaxYPlB/a9CRRRRR8
Threatray 4'742 similar samples on MalwareBazaar
TLSH EBE4F13133A88664D8BE5B751421664123FABE66FB21D70D7DA8305D6F736C38312BA3
Reporter cocaman
Tags:exe FormBook INVOICE

Intelligence

File Origin
# of uploads :
2
# of downloads :
89
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-04-20 14:42:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4ffd0068-23c4-4677-9dc9-c5794cc5b7fd

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/139720/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.672.23954.22811.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/689350
Signature
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
Machine Learning detection for dropped file
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)
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
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 393625 Sample: Invoice pdf.exe Startdate: 20/04/2021 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 12 other signatures 2->52 10 Invoice pdf.exe 7 2->10         started        process3 file4 32 C:\Users\user\AppData\...\gXUZJVkFviCTU.exe, PE32 10->32 dropped 34 C:\...\gXUZJVkFviCTU.exe:Zone.Identifier, ASCII 10->34 dropped 36 C:\Users\user\AppData\Local\...\tmp6141.tmp, XML 10->36 dropped 38 C:\Users\user\AppData\...\Invoice pdf.exe.log, ASCII 10->38 dropped 62 Injects a PE file into a foreign processes 10->62 14 Invoice pdf.exe 10->14         started        17 schtasks.exe 1 10->17         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 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 40 www.adjustedhuman.com 74.208.236.13, 49727, 80 ONEANDONE-ASBrauerstrasse48DE United States 19->40 42 shrikrishnasevasenai.com 160.153.138.219, 49729, 80 GODADDY-AMSDE United States 19->42 44 2 other IPs or domains 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 25 colorcpl.exe 19->25         started        signatures10 process11 signatures12 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/494b892495fb6f002fd36477446bfc59f686fe73710d55dc782de8512452e535/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jffysjev7nxqal6tmr3ui274lh3in7ttoegvlxdyfxufcjcs4u2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
+ 4'732 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210420-j2j34ggam6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://w����5 �@q[*��S=���m
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/494b892495fb6f002fd36477446bfc59f686fe73710d55dc782de8512452e535

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

7z 39c3cb2bce96c98cde9bec9fff034acca99b592f0a4ebec39a6017f3554a56fa

Formbook

Executable exe 494b892495fb6f002fd36477446bfc59f686fe73710d55dc782de8512452e535

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 39c3cb2bce96c98cde9bec9fff034acca99b592f0a4ebec39a6017f3554a56fa
Cape
Cape
https://www.capesandbox.com/analysis/139720/

Comments