MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43456ccf78231f448437d34b0d8e0f539fe2713743928d8bba119207b8b5f22a. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 43456ccf78231f448437d34b0d8e0f539fe2713743928d8bba119207b8b5f22a
SHA3-384 hash: d19bb5b1f9d92bdbc363f94159a6808cd9202aa05bfc219d5088d5deb81b306f8ef38ec8ba372cc6fc2c8d0ca30eb88a
SHA1 hash: fbb885883241383d3156b80078030fe6ca499bff
MD5 hash: 1d23ba3f967cfb45d87393c5e3508e8b
humanhash: orange-white-vermont-venus
File name:1d23ba3f967cfb45d87393c5e3508e8b.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:614'400 bytes
First seen:2020-12-03 07:49:13 UTC
Last seen:2020-12-03 10:26:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:yiI8Ec6GaCx6eGp9TqJ01aKhLTql4nPHBX2qPVGNbTuMuKBD7hpvA:y7NeGHqMLLTU4nPHvST0sDd
Threatray 3'087 similar samples on MalwareBazaar
TLSH 86D45C399F582A39F53AAB7CD1B02045A7ED6793B307C9DD2CB201C90B63E429ED152D
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/106519/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42726.454.6856.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Launching cmd.exe command interpreter
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/554361
Signature
.NET source code contains very large strings
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 326276 Sample: Vlpuoe2JSz.exe Startdate: 03/12/2020 Architecture: WINDOWS Score: 100 31 www.crimson.school 2->31 33 crimson.school 2->33 35 www.casabreo.com 2->35 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected AntiVM_3 2->47 49 4 other signatures 2->49 11 Vlpuoe2JSz.exe 1 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\Vlpuoe2JSz.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 15 Vlpuoe2JSz.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.pinup-casino-21.win 45.147.197.185, 49753, 80 ON-LINE-DATAServerlocation-NetherlandsDrontenNL Ukraine 18->37 39 crimson.school 34.102.136.180, 49731, 49746, 49755 GOOGLEUS United States 18->39 41 20 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 wscript.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/43456ccf78231f448437d34b0d8e0f539fe2713743928d8bba119207b8b5f22a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-12-03 07:50:07 UTC
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=incwzt3yempujbbx2nfq3dqpkop6e4jxioji3c52cgjapofv6iva._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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Formbook
f78a1ebc98a1c1482564cc64a7d10ba7c1ed03591b8cebeba72f27df590dd57d
Formbook
+ 3'077 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/201203-4llewhk3rj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.teelinkz.com/o56q/
Unpacked files
SH256 hash:
43456ccf78231f448437d34b0d8e0f539fe2713743928d8bba119207b8b5f22a
MD5 hash:
1d23ba3f967cfb45d87393c5e3508e8b
SHA1 hash:
fbb885883241383d3156b80078030fe6ca499bff
Link:
https://www.unpac.me/results/e94e0638-f078-499e-a4e1-251b03bb2efb/
SH256 hash:
9584f6d01e6452371cc9b4828030a13045d99c243c497b63628828e66aabe26f
MD5 hash:
7476e403eef14ac403c63c7279831780
SHA1 hash:
8387f558e30dc115987ac2b5c174a41302471abf
Link:
https://www.unpac.me/results/e94e0638-f078-499e-a4e1-251b03bb2efb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/43456ccf78231f448437d34b0d8e0f539fe2713743928d8bba119207b8b5f22a

File information

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

Web download

Formbook

Executable exe 43456ccf78231f448437d34b0d8e0f539fe2713743928d8bba119207b8b5f22a

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/106519/
  
URLhaus
https://urlhaus.abuse.ch/url/883315/
  
Delivery method
Distributed via web download

Comments