MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b0302231ae277b08e383cef527b093307edf552a1777b5c9a088e2e1c61ad6fe. 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: 19


Intelligence 19 IOCs YARA 1 File information Comments

SHA256 hash: b0302231ae277b08e383cef527b093307edf552a1777b5c9a088e2e1c61ad6fe
SHA3-384 hash: 3b26b4e9fde54b00b6bfddf13dc2d9f8fb1b0569662bb0ca63d5878493026a7e874ffa97c2852ff40eabf92be1e85472
SHA1 hash: a2f7f3ae306cd1ec96aa3d4dda334055f3a4bbe2
MD5 hash: 7b4460dc5a6f8c6ce8bc036cd3c7d841
humanhash: jersey-kansas-seven-three
File name:SKM20230216_$55580.88USD.exe
Download: download sample
Signature Formbook
File size:376'651 bytes
First seen:2023-02-16 14:28:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 6144:PYa62gPyc9RKT8uEHbDHqHuCjIJ/QxZ/XuWSI66HlfO16kEY2s:PYo8yyKoTbDKHunK1XuWSCF1kMs
TLSH T1A18423483E61C4ABEDD20BB26F3A4F03EBB2951668F5278947444F567A23095CA0E733
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
SKM20230216_$55580.88USD.exe
Verdict:
Malicious activity
Analysis date:
2023-02-16 14:29:21 UTC
Tags:
formbook xloader trojan stealer

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
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 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)
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 dropped file
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 810198 Sample: SKM20230216_$55580.88USD.exe Startdate: 16/02/2023 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 4 other signatures 2->53 11 SKM20230216_$55580.88USD.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\ylujssy.exe, PE32 11->31 dropped 14 ylujssy.exe 11->14         started        process5 signatures6 63 Multi AV Scanner detection for dropped file 14->63 65 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Tries to detect virtualization through RDTSC time measurements 14->69 17 ylujssy.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 2 6 17->20 injected process9 dnsIp10 33 hesaplimi.com 94.73.147.123, 49717, 80 CIZGITR Turkey 20->33 35 www.hesaplimi.com 20->35 37 3 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 cscript.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-02-16 11:02:38 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
22 of 25 (88.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:mn13 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
d973eb35ef9d7ffba0d34abe96ccb584131da2c74b5be2d18184719f87cbdec0
MD5 hash:
415508bf84a0b67efad1362e21799703
SHA1 hash:
93d8952b069647bb6cdedd1b589bfb716ed9e880
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
dac316620061dff51b0f42d2ff5bc4d64857c016f4f07f716c5c7a2d5d872dbf
MD5 hash:
b16023e04f83e96588eb1ab776fba8ae
SHA1 hash:
4f0a0a820fe2c5a65842de554b52c6703950f3b5
SH256 hash:
b0302231ae277b08e383cef527b093307edf552a1777b5c9a088e2e1c61ad6fe
MD5 hash:
7b4460dc5a6f8c6ce8bc036cd3c7d841
SHA1 hash:
a2f7f3ae306cd1ec96aa3d4dda334055f3a4bbe2
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:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

Comments