MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 990f0bf5a5fa80c2b2346ec861310c02e0de4a41936f4e73c0f001f0989b00a0. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments

SHA256 hash: 990f0bf5a5fa80c2b2346ec861310c02e0de4a41936f4e73c0f001f0989b00a0
SHA3-384 hash: 7327a1594e87bb0f6fd0a8707dcae12c6e2c3f85fc49b693b846551061a21f17dcc62c8f8087232740679e8b049d51e9
SHA1 hash: 43af14896168652f56381d03840029961b5ab3b3
MD5 hash: 8a9656849f33e717ff53e6ff152009ce
humanhash: lake-low-white-illinois
File name:Cita 240145.exe
Download: download sample
Signature Formbook
File size:1'324'032 bytes
First seen:2025-06-24 15:20:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0b768923437678ce375719e30b21693e (143 x Formbook, 25 x MassLogger, 22 x SnakeKeylogger)
ssdeep 24576:z5EmXFtKaL4/oFe5T9yyXYfP1ijXda9irYNofPoBNkA6BGP:zPVt/LZeJbInQRa9iE2oQvB
Threatray 9 similar samples on MalwareBazaar
TLSH T18555AF023FD29062FFE791374F96FE315A7C75E60133A52F13980979BA701A14A3E662
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon f2f160b08146c8ca (15 x SnakeKeylogger, 6 x GuLoader, 5 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
450
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Cita 240145.exe
Verdict:
No threats detected
Analysis date:
2025-06-24 15:38:12 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
91.7%
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script entropy fingerprint keylogger microsoft_visual_cc packed packed packer_detected
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Signature
Binary is likely a compiled AutoIt script file
Joe Sandbox ML detected suspicious sample
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)
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1722010 Sample: Cita 240145.exe Startdate: 24/06/2025 Architecture: WINDOWS Score: 96 31 www.quickcashswap.xyz 2->31 33 www.automationpython.xyz 2->33 35 19 other IPs or domains 2->35 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected FormBook 2->45 47 Binary is likely a compiled AutoIt script file 2->47 51 2 other signatures 2->51 11 Cita 240145.exe 2 2->11         started        signatures3 49 Performs DNS queries to domains with low reputation 33->49 process4 signatures5 61 Binary is likely a compiled AutoIt script file 11->61 63 Writes to foreign memory regions 11->63 65 Maps a DLL or memory area into another process 11->65 14 svchost.exe 11->14         started        process6 signatures7 67 Maps a DLL or memory area into another process 14->67 17 ZchiZW69uqSIm.exe 14->17 injected process8 process9 19 auditpol.exe 13 17->19         started        signatures10 53 Tries to steal Mail credentials (via file / registry access) 19->53 55 Tries to harvest and steal browser information (history, passwords, etc) 19->55 57 Modifies the context of a thread in another process (thread injection) 19->57 59 3 other signatures 19->59 22 wEzh3oluy.exe 19->22 injected 25 chrome.exe 19->25         started        27 firefox.exe 19->27         started        process11 dnsIp12 37 www.automationpython.xyz 13.248.169.48, 49728, 49729, 49730 AMAZON-02US United States 22->37 39 zhs.zohosites.com 136.143.186.12, 49764, 49765, 49766 ZOHO-ASUS United States 22->39 41 9 other IPs or domains 22->41 29 WerFault.exe 4 25->29         started        process13
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) Suspect Win 32 Exe x86
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-06-24 15:35:32 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
98b6a3d8eafafe378dfc7536684da31eef52ba013e91364843d6334cc98f41f8
MD5 hash:
47a3be03a403dbfb04ecaea9b2cea6d0
SHA1 hash:
ad89fa2efd7133c4fad42c10d430bcb044068ded
SH256 hash:
09a57dd046d7c400e720d542a41ec847b81a11d09865a9b5b228b3689936364f
MD5 hash:
7f4dccc1cba07007dbe2f6a410d6ccab
SHA1 hash:
c650e2ad0bdf01d1ed9ef0469e49aeef557adaa7
SH256 hash:
990f0bf5a5fa80c2b2346ec861310c02e0de4a41936f4e73c0f001f0989b00a0
MD5 hash:
8a9656849f33e717ff53e6ff152009ce
SHA1 hash:
43af14896168652f56381d03840029961b5ab3b3
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:AutoIT_Compiled
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

Comments