MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a2d98fb6f9e09f3cd49a863aa1290935ef1c5d714aa3beede7ca587f147f281. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a2d98fb6f9e09f3cd49a863aa1290935ef1c5d714aa3beede7ca587f147f281
SHA3-384 hash: 99b797b5d4357eddcc9f16191949eb9a5704d8167fe3067e793a0db251356352b1d8400a179583b1e51bfc98398ccfc2
SHA1 hash: 32b359c8bb8d5e2df92a5b6eaf4e8dae8de5e2a1
MD5 hash: 1157463e1449cd20749ce082521ca472
humanhash: carbon-white-summer-finch
File name:1157463e1449cd20749ce082521ca472
Download: download sample
Signature Formbook
Create hunting rule
File size:597'044 bytes
First seen:2021-11-20 09:43:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 12288:s2N5TXwj452kxN+u40IK8QQPM9Wzrnl2A5Yt0hwC:L5xNU0sgoHlx5Ys
Threatray 11'660 similar samples on MalwareBazaar
TLSH T17CC4127EBA98D837D7C4D9742836C47EA7B27080E1B843A73708BDED5E646F4350198A
File icon (PE):PE icon
dhash icon e8d4f2e8e4ececec (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO.27353.xlsx
Verdict:
Malicious activity
Analysis date:
2021-11-20 08:12:37 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/9ccee1be-9131-4d45-92b8-cefb10cbcdbd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
Win.Dropper.Temonde-6571898-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
DNS request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook overlay packed
Link:
https://www.filescan.io/uploads/6198c365f0309c84a4754538/reports/35f167dc-35e8-4e22-b45c-3f449dd56446/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/53aa206e-c2e8-4e4a-b3b0-9866dbe15a48
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/893056
Signature
Antivirus detection for URL or domain
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 525529 Sample: RX6TtlclV1 Startdate: 20/11/2021 Architecture: WINDOWS Score: 100 29 www.medpatriarh.store 2->29 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 6 other signatures 2->55 10 RX6TtlclV1.exe 17 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\Local\...\deisbxia.dll, PE32 10->27 dropped 57 Tries to detect virtualization through RDTSC time measurements 10->57 59 Injects a PE file into a foreign processes 10->59 14 RX6TtlclV1.exe 10->14         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 14->61 63 Maps a DLL or memory area into another process 14->63 65 Sample uses process hollowing technique 14->65 67 Queues an APC in another process (thread injection) 14->67 17 cmd.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 37 Self deletion via cmd delete 17->37 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Tries to detect virtualization through RDTSC time measurements 17->43 23 cmd.exe 1 17->23         started        31 carbon-dachbox.com 81.169.145.90, 49786, 80 STRATOSTRATOAGDE Germany 20->31 33 www.abogadosencolombia.online 75.126.101.229, 49767, 80 SOFTLAYERUS United States 20->33 35 15 other IPs or domains 20->35 45 System process connects to network (likely due to code injection or exploit) 20->45 47 Performs DNS queries to domains with low reputation 20->47 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5a2d98fb6f9e09f3cd49a863aa1290935ef1c5d714aa3beede7ca587f147f281/
Threat name:
Win32.Trojan.Spynoon
Create hunting rule
Status:
Malicious
First seen:
2021-11-19 13:27:25 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
26a7d60148b01f0b2c57abaac977514cbc0d31606ae151f200f0b9c04fdf0ad3
Formbook
71d93edf8e5a5f7128dc660fa599a41c96059fee16983769adb91b3b8353294f
Formbook
894f9fa39a5922cc3ec8d79c7957cfacbb99ce27c2b3babdb23e061a5a178ddc
Formbook
89dd90006d6cd58559565a7ccebc2147780e2a3ae084b5d114b2077c2ae341d7
Formbook
a81f4b0d0e1d5cc93e06323610f8500c2f0a0b5c15c890c104e3234bfee7fa68
Formbook
c04a6522c272316586333bdd0e1c78427b3dd04976d77e45d937fe763bea101f
Formbook
d37aa13c134ce2c1938ce9b4745cfe5af5c3b8348bc7b669731592596bef5e48
Formbook
d80436359f7dd16d812a1007524a34b9f62a9364062b19e198f505051bbe98a7
Formbook
e7cabf681ce8989913c4c78c8f539a791c852e0e637f359d2a399b91dc676506
Formbook
f9eaded7e2a9b80530a8b06cd2e517e23b713386e055f35b40564018cc77b8e7
Formbook
+ 11'650 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:s564 loader rat
Link:
https://tria.ge/reports/211120-lqgvvacfbj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.krishnaengg.net/s564/
Unpacked files
SH256 hash:
5a2d98fb6f9e09f3cd49a863aa1290935ef1c5d714aa3beede7ca587f147f281
MD5 hash:
1157463e1449cd20749ce082521ca472
SHA1 hash:
32b359c8bb8d5e2df92a5b6eaf4e8dae8de5e2a1
Link:
https://www.unpac.me/results/021719d7-1dda-43ca-999b-07cb7ddcc769/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/5a2d98fb6f9e09f3cd49a863aa1290935ef1c5d714aa3beede7ca587f147f281

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: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.

Web download

Formbook

Executable exe 5a2d98fb6f9e09f3cd49a863aa1290935ef1c5d714aa3beede7ca587f147f281

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1801950/
Cape
Cape
https://www.capesandbox.com/analysis/207730/

Comments


Avatar
zbet commented on 2021-11-20 09:43:33 UTC

url : hxxp://172.245.119.45/588885/vbc.exe