MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a12973c256e6565a0635fb0febaed5ed56f613d23b864df409f32f832a3af19f. 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: a12973c256e6565a0635fb0febaed5ed56f613d23b864df409f32f832a3af19f
SHA3-384 hash: bb4906addb5e087aaf08d6e465dbc43aa4ddf93c2d6f77113f8b815cb5e104561743977b4f40f18c4363914fdb9bc405
SHA1 hash: 7f0a99049ce06b600a89516d77adf3649593be21
MD5 hash: 9c51dcdcbb9a4cab887c3036bf8acea5
humanhash: maryland-robert-ink-cola
File name:shipping documents.exe
Download: download sample
Signature Formbook
File size:558'592 bytes
First seen:2022-06-21 04:17:55 UTC
Last seen:2022-06-21 10:18:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:TkXCFZSlff5KqOX8wFNgLBNCRhYa0TTAZQ1Jqw/U1Ex:PZYnET8a8CRyh
TLSH T140C48D9CB22C74DEC85BC2729AA84C64AB50746FB31B5117A1530D9E9D1CB83DF268F3
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit formbook 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
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
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 649294 Sample: shipping documents.exe Startdate: 21/06/2022 Architecture: WINDOWS Score: 100 31 www.trups88t.com 2->31 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 7 other signatures 2->45 11 shipping documents.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\shipping documents.exe.log, ASCII 11->29 dropped 57 Injects a PE file into a foreign processes 11->57 15 shipping documents.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 khrishaoverseas.com 160.153.136.3, 49828, 80 GODADDY-AMSDE United States 18->33 35 www.syz501.xyz 172.67.201.241, 49856, 80 CLOUDFLARENETUS United States 18->35 37 4 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Performs DNS queries to domains with low reputation 18->49 22 cmmon32.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-06-21 02:57:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:gfv7 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
System policy modification
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Reads user/profile data of web browsers
Adds policy Run key to start application
Blocklisted process makes network request
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
e8e0a476087352226ea102e89078067fb2d760238bc2121bf1098fdefd188604
MD5 hash:
3733f77949893a2f8206a945e2902629
SHA1 hash:
2cc712b01c2ba920a84dd4d758cf732b65d4a3e0
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
e55b3c244d40c49330daf327ad22f3e82557d608c0215e21dc2f1000a63d8bc4
MD5 hash:
58198da73361c45bb71ff41beab0f792
SHA1 hash:
734655d80c311bec3c91e1fbecfff57c49ede8e6
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
SH256 hash:
a12973c256e6565a0635fb0febaed5ed56f613d23b864df409f32f832a3af19f
MD5 hash:
9c51dcdcbb9a4cab887c3036bf8acea5
SHA1 hash:
7f0a99049ce06b600a89516d77adf3649593be21
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:exploit_any_poppopret
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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 a12973c256e6565a0635fb0febaed5ed56f613d23b864df409f32f832a3af19f

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments