MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 69af526dae44e6d6cd6c83d443d2129c948e7c46d099d89f48a4bbecbab61cfd. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: 69af526dae44e6d6cd6c83d443d2129c948e7c46d099d89f48a4bbecbab61cfd
SHA3-384 hash: 54893269a2eacc93821e2e8bf054223cbeb8cfe6755d98101b480ff15b445b3e00e90825923077e351ab60406b914dfe
SHA1 hash: d4b28c46c16a8fcaa447f3b86db098497a23a332
MD5 hash: 7e4416d02bd07f91ce7bf5f01a311f7c
humanhash: cat-utah-cup-green
File name:samizx.exe
Download: download sample
Signature Formbook
File size:526'848 bytes
First seen:2022-06-14 13:35:36 UTC
Last seen:2022-06-14 14:48:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:mBxAoqDX6gJf/AJTd+rlI7ys7hKjh6My0pAQ18EYgg0RR6W:mBxAoqhf/M+rm7y+hlQ18R0
TLSH T1E0B4E019BFABCD21D1A41776C9E690140330EA4A9217D70F3ACE235A58033DB9DD9BDB
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
samizx.exe
Verdict:
Malicious activity
Analysis date:
2022-06-14 22:43:06 UTC
Tags:
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 window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed shell32.dll
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 potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 645484 Sample: samizx.exe Startdate: 14/06/2022 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus detection for URL or domain 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 7 other signatures 2->38 10 samizx.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\samizx.exe.log, ASCII 10->28 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 14 samizx.exe 10->14         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.fitbest.net 185.230.60.173, 49828, 80 WIX_COMIL Israel 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 42 Uses netsh to modify the Windows network and firewall settings 17->42 21 netsh.exe 17->21         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-06-14 12:57:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:g2y4 rat spyware stealer suricata trojan
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
9bd84af64f0d2d9470e84045bbaf86c34e96a1e8a465331f8851aa4a484e039f
MD5 hash:
90df3af76e429c2d16e70dc31d176119
SHA1 hash:
6c87c5b12a548cad57638d3a3739d393330e7003
SH256 hash:
c6e1a43066054ca814f31eb46ffe779966562cec7da99b3d2ec00a90499e67c0
MD5 hash:
ea1f1b28a5909fa16bd8019a769f75e1
SHA1 hash:
693b1f6a5d3a8e14066e98c655b3af24d2282729
SH256 hash:
2fe9852668ae6b7715a5c6f8764744f9cb2ef3163adf0f360728f628d42ce916
MD5 hash:
26bfda201145c515616dbb9243785084
SHA1 hash:
4133e7329a79766bbe670a398fdfb442eb70487d
SH256 hash:
69af526dae44e6d6cd6c83d443d2129c948e7c46d099d89f48a4bbecbab61cfd
MD5 hash:
7e4416d02bd07f91ce7bf5f01a311f7c
SHA1 hash:
d4b28c46c16a8fcaa447f3b86db098497a23a332
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: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.

Comments