MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c6773fb30c8b0dae4dba9f0433d11f7d3d80a40ae960f188409a71ebb0d47ca. 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: 2c6773fb30c8b0dae4dba9f0433d11f7d3d80a40ae960f188409a71ebb0d47ca
SHA3-384 hash: 4328c63f374ebf7aff47d9f9ba7d1dd7e5d09d58190b231354c83d492bf4d5ec8c72eed3eb24310699e233d8cd622ba8
SHA1 hash: d8ecb3ccf1d3c48cdd499ba28d89cc9dd40f7a18
MD5 hash: 47c93c453f2119786fcbf39adbe88988
humanhash: fruit-zebra-jupiter-avocado
File name:au.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:315'392 bytes
First seen:2020-12-14 10:20:35 UTC
Last seen:2020-12-24 09:01:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 6144:FeNz2a+LwdBiZdcUFRzdbUVXs7X0EDtN/TMkMHPDhFVySyCmtCAA:Kz2aTiZOUDdgNCbTMkM7ISy
TLSH 6B642326ED4BE37BC27202FB8E4304E1C771B3605D17EB6E6EC546D89BCAB606543912
Reporter GovCERT_CH
Tags:FormBook

Intelligence

File Origin
# of uploads :
26
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
au.exe
Verdict:
No threats detected
Analysis date:
2020-12-14 10:22:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e6e40f4c-938a-4ef8-80e5-8bd9601c5ef3

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/107915/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Creating a file
Launching the process to change network settings
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
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/562038
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 330109 Sample: au.exe Startdate: 14/12/2020 Architecture: WINDOWS Score: 100 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 4 other signatures 2->50 10 au.exe 3 2->10         started        process3 file4 34 C:\Users\user\AppData\Local\...\au.exe.log, ASCII 10->34 dropped 60 Writes to foreign memory regions 10->60 62 Sample uses process hollowing technique 10->62 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->64 66 Injects a PE file into a foreign processes 10->66 14 vbc.exe 10->14         started        17 WerFault.exe 20 9 10->17         started        signatures5 process6 file7 68 Modifies the context of a thread in another process (thread injection) 14->68 70 Maps a DLL or memory area into another process 14->70 72 Sample uses process hollowing technique 14->72 74 2 other signatures 14->74 20 explorer.exe 14->20 injected 32 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 17->32 dropped signatures8 process9 dnsIp10 36 www.izicomp.net 51.38.230.18, 49785, 80 OVHFR France 20->36 38 jwm-consulting.com 167.250.5.50, 49757, 49790, 80 NUTHOSTSRLAR Argentina 20->38 40 20 other IPs or domains 20->40 52 System process connects to network (likely due to code injection or exploit) 20->52 24 wlanext.exe 12 20->24         started        signatures11 process12 dnsIp13 42 www.peipei521.com 24->42 54 Modifies the context of a thread in another process (thread injection) 24->54 56 Maps a DLL or memory area into another process 24->56 58 Tries to detect virtualization through RDTSC time measurements 24->58 28 cmd.exe 1 24->28         started        signatures14 process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2c6773fb30c8b0dae4dba9f0433d11f7d3d80a40ae960f188409a71ebb0d47ca/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-12-14 01:01:40 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=frtxh6zqzcynvzg3vhyegpir67j5qcsav2la6geebgtr5oyni7fa._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/201214-at84mvb6be/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Program crash
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.wellnesspharma.net/94sb/
Unpacked files
SH256 hash:
fec1b83d2340d8446bda1e2b27756695850d92928cd755710390c5aec435020e
MD5 hash:
b5a145f283f732558ae803e7ddadfd26
SHA1 hash:
d363df1147be1314de28ec5d9d1f3a00bf79a9b0
Link:
https://www.unpac.me/results/b141922b-25f7-4581-9930-9ecade6121fd/
SH256 hash:
73283ab26acdef607e278415c512e616fe9df88e280c105daafa1004cdec61c1
MD5 hash:
a4af5171d1c2b398329a64f673c7c9fe
SHA1 hash:
c59b1bf8f590f69fbd70c85a7fe8f979126660ce
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b141922b-25f7-4581-9930-9ecade6121fd/
Parent samples :
2c6773fb30c8b0dae4dba9f0433d11f7d3d80a40ae960f188409a71ebb0d47ca
43f68feb12f8a3edd331d420d87707f6fba2a04bd09591a432e861586336ccbb
SH256 hash:
2c6773fb30c8b0dae4dba9f0433d11f7d3d80a40ae960f188409a71ebb0d47ca
MD5 hash:
47c93c453f2119786fcbf39adbe88988
SHA1 hash:
d8ecb3ccf1d3c48cdd499ba28d89cc9dd40f7a18
Link:
https://www.unpac.me/results/b141922b-25f7-4581-9930-9ecade6121fd/
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/2c6773fb30c8b0dae4dba9f0433d11f7d3d80a40ae960f188409a71ebb0d47ca

File information

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

Malspam

Formbook

zip 6dcdd0af7032e97516308bf8f6b0d8a75f69697ac34ff9ac567716fc35192cff

Formbook

Executable exe 2c6773fb30c8b0dae4dba9f0433d11f7d3d80a40ae960f188409a71ebb0d47ca

(this sample)

  
Dropped by
MD5 a7ddf384172b932acaaa92f56a894844
  
Dropped by
SHA256 6dcdd0af7032e97516308bf8f6b0d8a75f69697ac34ff9ac567716fc35192cff
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/107915/

Comments