MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2cd05a280197535b97ed43fb3d55bdc7bb2efe223f7dd869e7595f0f61d23fe2. 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

SHA256 hash: 2cd05a280197535b97ed43fb3d55bdc7bb2efe223f7dd869e7595f0f61d23fe2
SHA3-384 hash: 624624ea0756ac5da4701e63cbf85e4edcd7cf750ed68d1082ec2137f7b5bf65c5a6bc19ee3f299ed25ee90ced793c07
SHA1 hash: 917b67693326bb1fa7029c02b49c3ee01a3709ef
MD5 hash: 4dfe1b1d893df419b7e6ae730db2c3d6
humanhash: bacon-spaghetti-robert-magnesium
File name:4dfe1b1d893df419b7e6ae730db2c3d6
Download: download sample
Signature Formbook
File size:780'288 bytes
First seen:2021-11-08 15:49:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:oARonOg3wxyDpIq7tU/8Gyd2pDGpS3Vh5BhvnYjp5wylG:rRonOiwxMIq78Ed2p6pyh5BhvnYjp5w9
TLSH T1FEF45B059AD44D09C37E03745529A0ACDE614E7B663DC258BF8E32AF3B7BA10865373B
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
101
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
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 domain / URL
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 517836 Sample: CBiVdAR3cZ Startdate: 08/11/2021 Architecture: WINDOWS Score: 100 32 www.poldolongo.com 2->32 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 8 other signatures 2->46 11 CBiVdAR3cZ.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\CBiVdAR3cZ.exe.log, ASCII 11->30 dropped 58 Tries to detect virtualization through RDTSC time measurements 11->58 60 Injects a PE file into a foreign processes 11->60 15 CBiVdAR3cZ.exe 11->15         started        signatures6 process7 signatures8 62 Modifies the context of a thread in another process (thread injection) 15->62 64 Maps a DLL or memory area into another process 15->64 66 Sample uses process hollowing technique 15->66 68 Queues an APC in another process (thread injection) 15->68 18 explorer.exe 15->18 injected process9 dnsIp10 34 www.qiuhenglawfirm.com 156.253.123.158, 49836, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 18->34 36 www.as-payjrku.icu 190.115.24.148, 49830, 80 DDOS-GUARDCORPBZ Belize 18->36 48 System process connects to network (likely due to code injection or exploit) 18->48 22 chkdsk.exe 12 18->22         started        signatures11 process12 dnsIp13 38 www.qiuhenglawfirm.com 22->38 50 Self deletion via cmd delete 22->50 52 Modifies the context of a thread in another process (thread injection) 22->52 54 Maps a DLL or memory area into another process 22->54 56 Tries to detect virtualization through RDTSC time measurements 22->56 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-08 12:37:44 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:s18y rat spyware stealer trojan
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.agentpathleurre.space/s18y/
Unpacked files
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
SH256 hash:
6038026c5c9719075c4496782ee07e37dd62f80f43ab13d3b2dc987ad9f330b9
MD5 hash:
075690f0e50177b7cdfbac2d9e970223
SHA1 hash:
3a2d7a40ae39447f1ff796efe51cc0a4530336e4
SH256 hash:
2cd05a280197535b97ed43fb3d55bdc7bb2efe223f7dd869e7595f0f61d23fe2
MD5 hash:
4dfe1b1d893df419b7e6ae730db2c3d6
SHA1 hash:
917b67693326bb1fa7029c02b49c3ee01a3709ef
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 2cd05a280197535b97ed43fb3d55bdc7bb2efe223f7dd869e7595f0f61d23fe2

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2021-11-08 15:49:37 UTC

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