MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cdb3229e64d90c75e9205357001b037333e36ecf141098dab1971d82cfa238ee. 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 30 File information Comments

SHA256 hash: cdb3229e64d90c75e9205357001b037333e36ecf141098dab1971d82cfa238ee
SHA3-384 hash: 7a6b9013278c6eb15082ed28dc2bc574fbf45cb9dabe387971417fbe14ec6cb0c17944a395e73370e1c65ad87e673593
SHA1 hash: 65b93e7c15c644f81784b38f68e832ef09f39a3a
MD5 hash: 1f25b0932adb4f999664456718bd2705
humanhash: apart-oranges-earth-alanine
File name:Payment 013125.exe
Download: download sample
Signature Formbook
File size:1'180'160 bytes
First seen:2025-01-31 16:15:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:lPV8K/0GHMcdgApDHFJGHSjbsZrnhuoBiq1D4Bu5JdQLaP:4KMPcdfOyjbsZ7cosqxwuPN
TLSH T1464533153EA96D55C098A13B10270B08673CFDC2D075BE0CE8CBDD661447B922EFBA6B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter BastianHein
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
448
Origin country :
CL CL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
745e7e7c01b915e1144c07c73b32f91d04f17d303623876f9ca421759b415f7c
Verdict:
Malicious activity
Analysis date:
2025-01-31 08:58:52 UTC
Tags:
arch-exec formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
95.7%
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Setting browser functions hooks
Searching for the window
Launching a process
Launching the process to change network settings
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected
Result
Verdict:
SUSPICIOUS
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 / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1603943 Sample: Payment 013125.exe Startdate: 31/01/2025 Architecture: WINDOWS Score: 100 30 www.nio.xyz 2->30 32 www.hees.xyz 2->32 34 9 other IPs or domains 2->34 38 Suricata IDS alerts for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 46 11 other signatures 2->46 11 Payment 013125.exe 2 2->11         started        signatures3 44 Performs DNS queries to domains with low reputation 32->44 process4 signatures5 56 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->56 58 Writes to foreign memory regions 11->58 60 Injects a PE file into a foreign processes 11->60 14 InstallUtil.exe 11->14         started        process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 4 other signatures 14->68 17 explorer.exe 102 7 14->17 injected process8 dnsIp9 28 www.nio.xyz 13.248.169.48, 49981, 49984, 80 AMAZON-02US United States 17->28 36 System process connects to network (likely due to code injection or exploit) 17->36 21 wscript.exe 17->21         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 54 Switches to a custom stack to bypass stack traces 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.VIPKeylogger
Status:
Malicious
First seen:
2025-01-31 06:46:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:i62s discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Suspicious use of NtCreateUserProcessOtherParentProcess
Unpacked files
SH256 hash:
713e2b561d32ab9ba4e8239f1887785363f2f3c9a618967c0d083cb94da1f411
MD5 hash:
a98ef02f34c557e92592cd40a9ea9e77
SHA1 hash:
c88752dbe04f709956f8305bcb312f386f742dbb
Detections:
FormBook win_formbook_auto win_formbook_g0 win_formbook_w0 Windows_Trojan_Formbook Formbook
SH256 hash:
3a3388a5094416db0e9f8ad01f83b5ab894b65e4f428367144f274ba71eba59a
MD5 hash:
c8a3e74dbc0b44d444cd3f9178b53c95
SHA1 hash:
7216b3d05d3ed6c5b76e2f7f0c96903c8700ae74
SH256 hash:
78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677
MD5 hash:
f9d2985aa1c41cca281321fffb5ed424
SHA1 hash:
3a7a58d2dcae2762882357ae34d372744b1dbb9d
SH256 hash:
c40d637b4e385025fc9ed4b176686f9e9fd0878b264b38750e7682a53a21d0f5
MD5 hash:
8b8a67f4d1d3dd9bc47aa7047ff904f8
SHA1 hash:
1f49871ec8e70063529b8f733794273ba5bf1067
SH256 hash:
736ff2ad764fd7ea57ddc494075608059855b0ce63f38ca3632f382f62cb1946
MD5 hash:
118a0ddf31ddd38955bdee131e1f1628
SHA1 hash:
e810a5621b1f879bfab66309ff80976c26b13064
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
cdb3229e64d90c75e9205357001b037333e36ecf141098dab1971d82cfa238ee
MD5 hash:
1f25b0932adb4f999664456718bd2705
SHA1 hash:
65b93e7c15c644f81784b38f68e832ef09f39a3a
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:pe_imphash
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Author:@malgamy12

File information


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

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments