MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a. 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
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SHA256 hash: a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a
SHA3-384 hash: 787de3c4b28361dbb38c9e8bf93f1b4154ce0f3e145b2f82cf76e12ad39621033e1ce521b288cb0ad9d9fbd37e0e073e
SHA1 hash: bb963db84168271e0b14435458fbfce10b11287f
MD5 hash: dbe494688244c239d675beaeaa555d58
humanhash: island-four-single-green
File name:dbe494688244c239d675beaeaa555d58
Download: download sample
Signature Formbook
Create hunting rule
File size:775'680 bytes
First seen:2021-11-08 09:32:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:CXTqCtoaPi9XQpJ0in+12XXaH15oLkBdh5BhvnYjp5wylG:4qZa61z2paV51dh5BhvnYjp5wylG
TLSH T140F45B059BD44D09C37E02745429A06CEE614E7B663DC258BF8E36BF2B7BA10865373B
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/203223/
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6188eed143a4f74809131387/reports/1452e9a1-e36e-45b3-905a-9a75317eab0b/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/88c7df53-108c-4784-b221-9163f85480d7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/885159
Signature
.NET source code contains potential unpacker
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)
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 517620 Sample: URevz9NlFG Startdate: 08/11/2021 Architecture: WINDOWS Score: 100 31 www.abec.legal 2->31 33 abec.legal 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 7 other signatures 2->47 11 URevz9NlFG.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\URevz9NlFG.exe.log, ASCII 11->29 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 URevz9NlFG.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.escuelabigdataimf.com 82.98.135.44, 49839, 80 DINAHOSTING-ASES Spain 18->35 37 www.jamesobrien.school 18->37 39 parkingpage.namecheap.com 198.54.117.217, 49813, 80 NAMECHEAP-NETUS United States 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Uses netsh to modify the Windows network and firewall settings 18->51 22 netsh.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 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/a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-11-08 08:37:19 UTC
AV detection:
7 of 45 (15.56%)
Threat level:
  2/5
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:cy88 rat spyware stealer trojan
Link:
https://tria.ge/reports/211108-lh7rasghcp/
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.jamesobrien.school/cy88/
Unpacked files
SH256 hash:
b9da25075c3e27a81cdf9207fbd574f974b87ec847bfcdef59d8bd8fade072e0
MD5 hash:
98574b67657a1644171b3038cfd9561b
SHA1 hash:
6fcd3a68800350b0152f995b8e79c15b09eb44d5
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/313413b6-1cac-4b2e-9763-bf3955994da9/
Parent samples :
a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a
6bce7b4a9dc4b092b2940ee941b8defdc5d60c56a57b2621aa3ac6b957e3cdfd
557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347
ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55
55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0
4253f88eb5e931720c16e56f49babfbf8db93eaa8b6f85146cc2d690aee2b9d2
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/313413b6-1cac-4b2e-9763-bf3955994da9/
SH256 hash:
43303c0941891c6ca9ad6121bbeb17b6645cf2c719c53b24d70f0866e3878eca
MD5 hash:
fe45e07b7a4619112bdf1bc77ac8ff80
SHA1 hash:
9b10d55081a18c8d9b45f4b28ce809db74821d03
Link:
https://www.unpac.me/results/313413b6-1cac-4b2e-9763-bf3955994da9/
SH256 hash:
a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a
MD5 hash:
dbe494688244c239d675beaeaa555d58
SHA1 hash:
bb963db84168271e0b14435458fbfce10b11287f
Link:
https://www.unpac.me/results/313413b6-1cac-4b2e-9763-bf3955994da9/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a1c782659ddb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a

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
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Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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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 a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1763345/
Cape
Cape
https://www.capesandbox.com/analysis/203223/

Comments


Avatar
zbet commented on 2021-11-08 09:32:59 UTC

url : hxxp://samsung-tv.tk/callyzx.exe