MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 68213ac03f57cdeb622a75cf6e781a7e6e7c4b5aa21d7f3d899afd336059ff8c. 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 3 File information Comments

SHA256 hash: 68213ac03f57cdeb622a75cf6e781a7e6e7c4b5aa21d7f3d899afd336059ff8c
SHA3-384 hash: ee6c9c0ce41eb64918551755beeae5b278318de33f698f1ed319e6585b62ca2e0f100b083693af51ea3e4bdca8910433
SHA1 hash: 7a4ca5e541fbdf34a5f7aac30494cd7181443681
MD5 hash: a4dc9e5260664097388544f3e3d9c690
humanhash: yellow-magnesium-zebra-nebraska
File name:PO_87910219.exe
Download: download sample
Signature Formbook
File size:507'904 bytes
First seen:2022-06-28 11:18:09 UTC
Last seen:2022-06-28 12:00:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:AylZ37xHPwNHzXMTBmU97SFuojpb/H2/TAJ5o3wIbwKew35Ii4d6X+0wIXcOPJxM:nlZrOh0v9+FuopHCTzVbwKlJIi4QyB/
TLSH T1A1B412A113E05FEFD27492B33971012153AA63971C26EA6FD90AF1DD1233B85C562ECB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 00c0c4e4e4c4c000 (11 x Formbook, 9 x AgentTesla, 7 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
2
# of downloads :
252
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook 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 method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
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
Snort IDS alert for network traffic
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 653635 Sample: PO_87910219.exe Startdate: 28/06/2022 Architecture: WINDOWS Score: 100 37 www.xbhuijia12.xyz 2->37 39 www.tomandbev.info 2->39 41 2 other IPs or domains 2->41 49 Snort IDS alert for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 11 other signatures 2->55 11 PO_87910219.exe 3 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\PO_87910219.exe.log, ASCII 11->35 dropped 67 Tries to detect virtualization through RDTSC time measurements 11->67 69 Injects a PE file into a foreign processes 11->69 15 PO_87910219.exe 11->15         started        18 PO_87910219.exe 11->18         started        20 PO_87910219.exe 11->20         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 Queues an APC in another process (thread injection) 15->77 22 explorer.exe 15->22 injected process9 dnsIp10 43 www.300wcq.com 103.233.253.186, 49798, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Hong Kong 22->43 45 www.444mr.com 156.244.61.249, 49796, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 22->45 47 3 other IPs or domains 22->47 57 System process connects to network (likely due to code injection or exploit) 22->57 59 Performs DNS queries to domains with low reputation 22->59 26 wlanext.exe 22->26         started        29 autofmt.exe 22->29         started        signatures11 process12 signatures13 61 Modifies the context of a thread in another process (thread injection) 26->61 63 Maps a DLL or memory area into another process 26->63 65 Tries to detect virtualization through RDTSC time measurements 26->65 31 cmd.exe 1 26->31         started        process14 process15 33 conhost.exe 31->33         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-06-28 09:59:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 25 (84.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:nxmu 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 WriteProcessMemory
System policy modification
Drops file in Program Files directory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Adds policy Run key to start application
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:
1e9db8c899496e3aa1ba1e5b47e7594b80d53609d06ca964edbdfe7d0ef48557
MD5 hash:
c055a82590c56942b6787520dc4963f4
SHA1 hash:
02c3bd5c47700fac76207f925fb214a2ab3e1bb8
Detections:
win_formbook_g0 win_formbook_auto XLoader
SH256 hash:
0aa8ea56f670ef5041fe87ee1a27b6623c2cf7996ed489214aa076996ca40cac
MD5 hash:
faf84cab64260654988db2f9157f8f89
SHA1 hash:
e1e6ebeaf252c78e74c1355cdefc6a2c52cfab70
SH256 hash:
0cb6aef1fa57d11408e47ae071485ef8f48c2982997b8d74b47a4151d85b978c
MD5 hash:
843aa6edf83bff7b61c6a5369ef41e95
SHA1 hash:
d1bfeec8eaac9a1dacf2f7062ce964d8e7d77085
SH256 hash:
7d44670507c1c358c50f2935c04bf9d9054df0aa6f69fc56e4bbbcfc46baa5f3
MD5 hash:
82f26705bb1292c05f85c2a6bbdb0124
SHA1 hash:
c2f27a2684308583f4b951eeca4fc2c4345ec974
SH256 hash:
2095d8499073a3d7d4e2e2802730a8afda018e6474153b8281380d3ebad0d78e
MD5 hash:
f913306992426f37630eb892ddd76389
SHA1 hash:
a506a85850df13fa64d24ea0535864b28fdd3e40
SH256 hash:
68213ac03f57cdeb622a75cf6e781a7e6e7c4b5aa21d7f3d899afd336059ff8c
MD5 hash:
a4dc9e5260664097388544f3e3d9c690
SHA1 hash:
7a4ca5e541fbdf34a5f7aac30494cd7181443681
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:pdb_YARAify
Author:@wowabiy314
Description:PDB
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.

Malspam

Formbook

Executable exe 68213ac03f57cdeb622a75cf6e781a7e6e7c4b5aa21d7f3d899afd336059ff8c

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

Comments