MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 243bf6298e6d09d6b1defc371150fa5e0b34942eb6f2d616c187fa3fd7f44fbb. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 243bf6298e6d09d6b1defc371150fa5e0b34942eb6f2d616c187fa3fd7f44fbb
SHA3-384 hash: bce424e30e17f0ffdee215897da97f2e8783841db531e462a515ba0bd2bca58c091acc787f266a213dccbecc39e9ff6b
SHA1 hash: efa411a979e1de7ad29b1c92f55d1d604d917618
MD5 hash: dee44580791ad105a240b06fab1bb1a5
humanhash: yankee-failed-alabama-glucose
File name:dee44580791ad105a240b06fab1bb1a5.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:422'400 bytes
First seen:2022-01-12 10:59:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:Hy6ceVj03OnYlIR7L4w7E2VFeb9rPUPTTbtGG:S6DVI3OnYK1L0+KrMpGG
TLSH T10B940198761030EFC9ABC6B989B86D70A62175E76303C207969341DE9A0CBD7DF509F3
File icon (PE):PE icon
dhash icon b3b3333969693b3b (69 x Formbook, 63 x AgentTesla, 26 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dee44580791ad105a240b06fab1bb1a5.exe
Verdict:
Suspicious activity
Analysis date:
2022-01-12 11:50:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/21e6db73-a75f-439c-935f-dd519840cae7

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/218699/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.30975.25057.2147.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Gathering data
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/d8b38e2a-21be-4069-a77b-56d4e3762a93
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/919180
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 551662 Sample: NByBpvUqHs.exe Startdate: 12/01/2022 Architecture: WINDOWS Score: 100 31 www.bigpromo.club 2->31 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 10 other signatures 2->43 11 NByBpvUqHs.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...29ByBpvUqHs.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Injects a PE file into a foreign processes 11->57 15 NByBpvUqHs.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.harsors.com 63.250.45.131, 49802, 80 NAMECHEAP-NETUS United States 18->33 35 www.daoyi365.com 118.31.113.136, 49827, 80 CNNIC-ALIBABA-CN-NET-APHangzhouAlibabaAdvertisingCoLtd China 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 explorer.exe 18->22         started        signatures11 process12 signatures13 47 Self deletion via cmd delete 22->47 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/243bf6298e6d09d6b1defc371150fa5e0b34942eb6f2d616c187fa3fd7f44fbb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-12 11:00:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
22 of 27 (81.48%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bt33 rat spyware stealer trojan
Link:
https://tria.ge/reports/220112-m3z3macch5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
4f1532705d87c6986e6ee1427235d0ee9059cda1ed8d65d43c6be83eafba6aeb
MD5 hash:
4f89eed7ee99cfa1f0729c1c41039c6a
SHA1 hash:
2e017cec0c10f45d63e6cb1ea236d11df2693875
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/36c04b22-a18e-44d4-ae57-b9b9093f1e7d/
Parent samples :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 hash:
62b4c1dc2c2c4f153d0adb55f85cb9afbb0f3691c8c010614858d83a96b46097
MD5 hash:
6b2a38304caac3fcb06bb2ceebcc8c8c
SHA1 hash:
d5605f93450b2872d4856b4751a8bb7083e8a76a
Link:
https://www.unpac.me/results/36c04b22-a18e-44d4-ae57-b9b9093f1e7d/
SH256 hash:
756727c8def3e692ac73765f0444ccc022113f3edcf5caa50065b38e51a76691
MD5 hash:
a0fb32b854664151e22033fc8b9f4f7e
SHA1 hash:
0d8d76b0d8b6c45fdb6164d75b129d3be0d4f15a
Link:
https://www.unpac.me/results/36c04b22-a18e-44d4-ae57-b9b9093f1e7d/
SH256 hash:
243bf6298e6d09d6b1defc371150fa5e0b34942eb6f2d616c187fa3fd7f44fbb
MD5 hash:
dee44580791ad105a240b06fab1bb1a5
SHA1 hash:
efa411a979e1de7ad29b1c92f55d1d604d917618
Link:
https://www.unpac.me/results/36c04b22-a18e-44d4-ae57-b9b9093f1e7d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/243bf6298e6d/report/overview.html
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/243bf6298e6d09d6b1defc371150fa5e0b34942eb6f2d616c187fa3fd7f44fbb

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 243bf6298e6d09d6b1defc371150fa5e0b34942eb6f2d616c187fa3fd7f44fbb

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/218699/
  
URLhaus
https://urlhaus.abuse.ch/url/1962740/
  
Delivery method
Distributed via web download

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