MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce. 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: 16


Intelligence 16 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce
SHA3-384 hash: b3e70e476492e599f8c9d8a8499c3de9e033a7a0af86688c31f6529b9bcb77e229fb8fd98cdc9bbc94aecdb2f16771cd
SHA1 hash: 097afa105974609aa0e92e2081d69e0722bb661c
MD5 hash: 2b0ade9bff0f64153eb7db5fe0e912a7
humanhash: ceiling-papa-california-sad
File name:AirWaybill_Document Pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'063'913 bytes
First seen:2024-06-27 04:13:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:sxrMbhVwJF1ESbi+9XnhtTaJevHCgpdCRYEkD0AgUZustkxi:8rohTh+NhtTa+b/JNgUZbtkw
TLSH T183A52210F4976E1BFD0968B2C1E1B1F220FEAD17F6F2599FDF819E09150197D2212AB2
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
367
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce.exe
Verdict:
Malicious activity
Analysis date:
2024-06-27 04:13:24 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/d6f00a22-a201-409d-a444-268c8700776f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.RATX-gen.12076.2193.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667ce722c6541e8c57000aa5win10vpnfull_triage
Tags:
Encryption Generic Swotter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay
Link:
https://www.filescan.io/uploads/667ce70aee1e16e3eb15a71a/reports/f8a0dde1-eb8e-445a-8531-70c82d0fe155/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dbb7e5fb-a34f-40b1-a619-1ff2fc6add1b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
expl.evad.troj.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1463423
Signature
AI detected suspicious sample
Allocates memory in foreign processes
Found direct / indirect Syscall (likely to bypass EDR)
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)
Snort IDS alert for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ping.exe to check the status of other devices and networks
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1463423 Sample: AirWaybill_Document Pdf.exe Startdate: 27/06/2024 Architecture: WINDOWS Score: 100 34 www.ngkwnq.xyz 2->34 36 www.ajjmamlllqqq.xyz 2->36 38 17 other IPs or domains 2->38 46 Snort IDS alert for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 54 7 other signatures 2->54 10 AirWaybill_Document Pdf.exe 2 2->10         started        signatures3 52 Performs DNS queries to domains with low reputation 36->52 process4 signatures5 66 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->66 68 Writes to foreign memory regions 10->68 70 Allocates memory in foreign processes 10->70 72 Injects a PE file into a foreign processes 10->72 13 ngen.exe 10->13         started        16 WerFault.exe 19 16 10->16         started        18 svchost.exe 10->18         started        20 ngen.exe 10->20         started        process6 signatures7 74 Maps a DLL or memory area into another process 13->74 22 CzJhvVluhQvO.exe 13->22 injected process8 signatures9 56 Found direct / indirect Syscall (likely to bypass EDR) 22->56 25 PING.EXE 13 22->25         started        process10 signatures11 58 Tries to steal Mail credentials (via file / registry access) 25->58 60 Tries to harvest and steal browser information (history, passwords, etc) 25->60 62 Modifies the context of a thread in another process (thread injection) 25->62 64 3 other signatures 25->64 28 CzJhvVluhQvO.exe 25->28 injected 32 firefox.exe 25->32         started        process12 dnsIp13 40 www.mycaringfriend.online 3.33.244.179, 49744, 49745, 49746 AMAZONEXPANSIONGB United States 28->40 42 www.marttyes.top 203.161.41.207, 49748, 49750, 49751 VNPT-AS-VNVNPTCorpVN Malaysia 28->42 44 8 other IPs or domains 28->44 76 Found direct / indirect Syscall (likely to bypass EDR) 28->76 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-06-27 00:31:50 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l7lmj22cnc5rgbojwukqwajs75nk5sjqkspwhoz22urzfvyr5dha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240627-etm3ps1hra/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/704f7911-64dc-45d6-8d56-fae407ae34b1
Unpacked files
SH256 hash:
5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce
MD5 hash:
2b0ade9bff0f64153eb7db5fe0e912a7
SHA1 hash:
097afa105974609aa0e92e2081d69e0722bb661c
Link:
https://www.unpac.me/results/03118534-6f07-4a5e-a7d8-b1fb81068408/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
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.

Malspam

Formbook

Executable exe 5fd6c4eb4268bb1305c9b5150b0132ff5aaec930549f63bb3ad52392d711e8ce

(this sample)

  
Delivery method
Distributed via e-mail attachment

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