MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd52f05e91405de2802b080e908010337ed3a73c6a37f9c1c9a10a97622d5305. 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: 14


Intelligence 14 IOCs YARA File information Comments

SHA256 hash: cd52f05e91405de2802b080e908010337ed3a73c6a37f9c1c9a10a97622d5305
SHA3-384 hash: 1504eb928a04fd2146a622cd91d426d161d996809a6af6be571c9fa895ed6d092694409b3c3bcd981e3bb1f8e6639178
SHA1 hash: 101c1fd3ba1a4f5dd2b5d98e7d7d9b8c9bfcb2e1
MD5 hash: 6fb0f768d45a458a38f39009f51636ca
humanhash: hotel-north-georgia-vermont
File name:Error_Account_info.pdf.exe
Download: download sample
Signature Formbook
File size:324'261 bytes
First seen:2022-06-06 10:30:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 55f3dfd13c0557d3e32bcbc604441dd3 (124 x Formbook, 18 x Loki, 13 x AgentTesla)
ssdeep 6144:PGPI0ObPanA+2UD0LSqxQcpEf1VaeRaRG1EOEvygcFnKppHPjAetr2V:ffef1UesGPQyl65cQiV
TLSH T1C564AED3B19045EAECAF0772AC3B983521937E7D96B1A54D4B7E333547B3283005BA1A
TrID 92.9% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 5315c151466590c4 (1 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
292
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Error_Account_info.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-06-06 10:33:28 UTC
Tags:
installer formbook trojan stealer

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

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe formbook overlay packed shell32.dll wacatac
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 639750 Sample: Error_Account_info.pdf.exe Startdate: 06/06/2022 Architecture: WINDOWS Score: 100 39 www.newheightsils.com 2->39 55 Snort IDS alert for network traffic 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 6 other signatures 2->61 13 Error_Account_info.pdf.exe 19 2->13         started        signatures3 process4 file5 37 C:\Users\user\AppData\Local\Temp\jyiwi.exe, PE32 13->37 dropped 16 jyiwi.exe 1 13->16         started        process6 signatures7 47 Antivirus detection for dropped file 16->47 49 Multi AV Scanner detection for dropped file 16->49 51 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 16->51 53 2 other signatures 16->53 19 jyiwi.exe 16->19         started        22 conhost.exe 16->22         started        process8 signatures9 63 Modifies the context of a thread in another process (thread injection) 19->63 65 Maps a DLL or memory area into another process 19->65 67 Sample uses process hollowing technique 19->67 69 Queues an APC in another process (thread injection) 19->69 24 explorer.exe 19->24 injected process10 dnsIp11 41 stakecubepro.com 198.54.116.29, 49810, 80 NAMECHEAP-NETUS United States 24->41 43 www.puppybestie.com 23.227.38.32, 49822, 80 CLOUDFLARENETUS Canada 24->43 45 11 other IPs or domains 24->45 71 System process connects to network (likely due to code injection or exploit) 24->71 28 wscript.exe 24->28         started        signatures12 process13 signatures14 73 Modifies the context of a thread in another process (thread injection) 28->73 75 Maps a DLL or memory area into another process 28->75 77 Tries to detect virtualization through RDTSC time measurements 28->77 31 cmd.exe 1 28->31         started        process15 process16 33 conhost.exe 31->33         started        process17 35 conhost.exe 33->35         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-06-06 07:16:01 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:guba loader persistence rat spyware stealer suricata trojan
Behaviour
Modifies Internet Explorer settings
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
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
8056874f022a51ac437809ec170e8bbafc8562bfeb896450eb269270a5d090fc
MD5 hash:
681da800ae1dcf8ddc8e5dc74263651d
SHA1 hash:
fcd688cee6ed186b3d20269ec0a46b444f7f96db
SH256 hash:
cd52f05e91405de2802b080e908010337ed3a73c6a37f9c1c9a10a97622d5305
MD5 hash:
6fb0f768d45a458a38f39009f51636ca
SHA1 hash:
101c1fd3ba1a4f5dd2b5d98e7d7d9b8c9bfcb2e1
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 cd52f05e91405de2802b080e908010337ed3a73c6a37f9c1c9a10a97622d5305

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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