MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c62f6b9af03c0419e1dd8cea2186b52ddfd5c464d9107cdd7d2fc5995325c158. 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: 12


Intelligence 12 IOCs YARA File information Comments

SHA256 hash: c62f6b9af03c0419e1dd8cea2186b52ddfd5c464d9107cdd7d2fc5995325c158
SHA3-384 hash: 550704af81af83825585c5137d86c1335f557b92daa0fd9583efaa02d8ea67156fea40db6b0267254f7a280c8e2fca96
SHA1 hash: 8667e2f9ceb40cd897f63d87ad83e81e93c404b9
MD5 hash: 41a9b35b3fc940ebf1c832dd31510d71
humanhash: sixteen-ink-seven-triple
File name:l1.exe
Download: download sample
Signature Formbook
File size:263'038 bytes
First seen:2021-11-11 09:52:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGiybEKnyp7+QVYKr2GcC2Txs79f+24KIuwEFqZqTdM/n0:ObEKnyZ+QVN2Gv+xPUw0
Threatray 11'291 similar samples on MalwareBazaar
TLSH T1C444130BF1C04EFBCA6103328472D710DBBBA5DB2092562757F87F7F2D5215A1606B9A
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
1
# of downloads :
110
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
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 detection for dropped file
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 519840 Sample: l1.exe Startdate: 11/11/2021 Architecture: WINDOWS Score: 100 31 www.worldofcheer-international.com 2->31 33 www.wkshops22012.xyz 2->33 35 6 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 6 other signatures 2->49 11 l1.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\zwkjz.dll, PE32 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 l1.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 37 td-balancer-db4-63-161.wixdns.net 185.230.63.161, 49812, 80 WIX_COMIL Israel 18->37 39 td-balancer-db4-63-177.wixdns.net 185.230.63.177, 49824, 80 WIX_COMIL Israel 18->39 41 13 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 systray.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       
Threat name:
Win32.Backdoor.Zapchast
Status:
Malicious
First seen:
2021-11-11 07:32:46 UTC
AV detection:
10 of 45 (22.22%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:znhk loader rat suricata
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.fahrzeug.media/znhk/
Unpacked files
SH256 hash:
c62f6b9af03c0419e1dd8cea2186b52ddfd5c464d9107cdd7d2fc5995325c158
MD5 hash:
41a9b35b3fc940ebf1c832dd31510d71
SHA1 hash:
8667e2f9ceb40cd897f63d87ad83e81e93c404b9
Malware family:
XLoader
Verdict:
Malicious
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 c62f6b9af03c0419e1dd8cea2186b52ddfd5c464d9107cdd7d2fc5995325c158

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

Comments