MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f53df4e1f9405d98a02cf34bedf2ee5df88437c130eb339eb6da9850f14ad443. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f53df4e1f9405d98a02cf34bedf2ee5df88437c130eb339eb6da9850f14ad443
SHA3-384 hash: 46623cad87789c46a6150298608b670110bb187c23769011c8cc2775e6cdeabdf5c91c21f97393ceb5a419f1fdd73fdc
SHA1 hash: a5e70c7ef5c972a5507b679c573e677ec7ba28a6
MD5 hash: 763a170d8db1c54b150a0d2891b3fead
humanhash: october-neptune-yankee-mexico
File name:763a170d8db1c54b150a0d2891b3fead.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:900'096 bytes
First seen:2021-01-12 07:03:23 UTC
Last seen:2021-01-12 08:55:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:TqDqDhgpZes2ZP/M1UEQX7NA7BOtP3CdHWClb7d4YXTF5GTZOQ1Hlfp6MA:eDVTSUqEQrNA7BOFa6Zl1Hlj
TLSH E815CF0125797F72EA3C97F92A05621883F9375F08EEE2744CD130E711B9F865A90ADB
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment Advice.xlsx
Verdict:
Malicious activity
Analysis date:
2021-01-12 06:22:36 UTC
Tags:
encrypted trojan opendir exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/5e761f32-eb68-4a88-aeb4-9e1001ce1f5b

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/111387/
Detection(s):
SecuriteInfo.com.Trojan.Siggen11.57608.31558.18471.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
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/578662
Signature
.NET source code contains potential unpacker
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 338380 Sample: lKCnywe5rE.exe Startdate: 12/01/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 8 other signatures 2->44 10 lKCnywe5rE.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\lKCnywe5rE.exe.log, ASCII 10->30 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 14 lKCnywe5rE.exe 10->14         started        17 lKCnywe5rE.exe 10->17         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 19 explorer.exe 14->19 injected process8 dnsIp9 32 watermeloncrypto.com 151.106.98.9, 49758, 80 PLUSSERVER-ASN1DE Germany 19->32 34 skyfun.asia 34.102.136.180, 49757, 80 GOOGLEUS United States 19->34 36 5 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 netsh.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f53df4e1f9405d98a02cf34bedf2ee5df88437c130eb339eb6da9850f14ad443/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-12 07:04:06 UTC
AV detection:
17 of 46 (36.96%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210112-aqkwh58gzj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.zglvyouzaixian.com/nki/
Unpacked files
SH256 hash:
f53df4e1f9405d98a02cf34bedf2ee5df88437c130eb339eb6da9850f14ad443
MD5 hash:
763a170d8db1c54b150a0d2891b3fead
SHA1 hash:
a5e70c7ef5c972a5507b679c573e677ec7ba28a6
Link:
https://www.unpac.me/results/dd5be0c6-cebd-4510-b522-088662df78b6/
SH256 hash:
fbb165144b48b9bcc0bcae12b8861ceac47272e2750f0808d31ab0da3208e5a4
MD5 hash:
0ae6837de06fc9689644cd9f463e2ae6
SHA1 hash:
2c0a9580f8afe62cad9b94b0ba415fbb26d106ce
Link:
https://www.unpac.me/results/dd5be0c6-cebd-4510-b522-088662df78b6/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/dd5be0c6-cebd-4510-b522-088662df78b6/
SH256 hash:
292a5bc45419b570fb32d43a8652e79cee353599da4588afae44400e6f3bf82e
MD5 hash:
8bfeecf2c89b495113aa0db7e507bb0d
SHA1 hash:
d0269be2fc9ee7dd8f4cac812d37b7905e7d8dd7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/dd5be0c6-cebd-4510-b522-088662df78b6/
Parent samples :
f53df4e1f9405d98a02cf34bedf2ee5df88437c130eb339eb6da9850f14ad443
0ae22d4877231b64b2e9e1252bbe8636ea43fe5692ca899733e715ccfc82e224
db22f0cb9581f21a73f9221cb57c49b5e4f698021754eaa30fdbde8db72ad333
420f06103fac607a08bc7ff557201ffc5fc4f693aa52df9476171ed5398d8bf5
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/f53df4e1f9405d98a02cf34bedf2ee5df88437c130eb339eb6da9850f14ad443

File information

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

Web download

Formbook

Executable exe f53df4e1f9405d98a02cf34bedf2ee5df88437c130eb339eb6da9850f14ad443

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/952193/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/111387/

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