MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5c03cc9cabc0adbcdb1597650f9fc5dd5c3b338a0e8558887a02fbb3be8c34c4. 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 File information Comments

SHA256 hash: 5c03cc9cabc0adbcdb1597650f9fc5dd5c3b338a0e8558887a02fbb3be8c34c4
SHA3-384 hash: 9c490f4b4b9481c64422eef643d4239b88b485a76748e60288a71734d2bb6930d7261dea93f86d687512da9caf090dfa
SHA1 hash: f662319b3f121a1c9b4fd27081fa8311d32d58c3
MD5 hash: 0e793402ff4ee0d3e6b3e5edae0c8652
humanhash: lake-purple-maryland-west
File name:RTV900021234.exe
Download: download sample
Signature Formbook
File size:206'336 bytes
First seen:2020-12-22 10:50:32 UTC
Last seen:2020-12-23 02:47:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6268f04e234d87c0f6d247f77774934b (3 x SnakeKeylogger, 1 x Formbook)
ssdeep 3072:bLTn8XSbHmlu0tZGG5VwnbIvkAjMtmAPALeC5gtwJ7VxepZns5cdZabAlLp:XTn8iotZGS+bIVfWAScan7ZabAll
Threatray 3'302 similar samples on MalwareBazaar
TLSH 8514120AD5430CAACBC478B7733F707FEA9B224483D524DA995068B85D79BD5F22283D
Reporter GovCERT_CH
Tags:FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
168
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
F839949.zip
Verdict:
Malicious activity
Analysis date:
2020-12-21 15:19:47 UTC
Tags:
trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Sending an HTTP GET request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 333143 Sample: RTV900021234.exe Startdate: 22/12/2020 Architecture: WINDOWS Score: 100 34 www.jutoxnatural.com 2->34 36 td-balancer-euw2-6-109.wixdns.net 2->36 38 3 other IPs or domains 2->38 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 4 other signatures 2->48 11 RTV900021234.exe 2->11         started        signatures3 process4 signatures5 56 Maps a DLL or memory area into another process 11->56 58 Tries to detect virtualization through RDTSC time measurements 11->58 14 RTV900021234.exe 11->14         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 14->17 injected process8 dnsIp9 28 evolvestephanieperreault.com 162.241.24.62, 49747, 80 UNIFIEDLAYER-AS-1US United States 17->28 30 www.unitvn.com 112.213.89.130, 49746, 80 SUPERDATA-AS-VNSUPERDATA-VN Viet Nam 17->30 32 7 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 21 wlanext.exe 17->21         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2020-12-21 12:34:29 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.unitvn.com/krc/
Unpacked files
SH256 hash:
5c03cc9cabc0adbcdb1597650f9fc5dd5c3b338a0e8558887a02fbb3be8c34c4
MD5 hash:
0e793402ff4ee0d3e6b3e5edae0c8652
SHA1 hash:
f662319b3f121a1c9b4fd27081fa8311d32d58c3
SH256 hash:
df1a174033123b25388d9e18ffaaee450a1b1823fa0e7b8eb5c7fa72f69edc1f
MD5 hash:
5c748f5122ee2a296257804d58900801
SHA1 hash:
9ef3d9c557b23beceaab5eabcd7e28c4eb7bd9e5
Detections:
win_formbook_g0 win_formbook_auto
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

Formbook

Executable exe 5c03cc9cabc0adbcdb1597650f9fc5dd5c3b338a0e8558887a02fbb3be8c34c4

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment

Comments