MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42e319dba75dc914d5645a6fc1025984c6e64a34303cb7c5e9b936aade524efe. 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: 20


Intelligence 20 IOCs YARA 4 File information Comments

SHA256 hash: 42e319dba75dc914d5645a6fc1025984c6e64a34303cb7c5e9b936aade524efe
SHA3-384 hash: 0abfd879d04b2adf150a44e4bd7dfc08b054c609e7bb60ff055f91c1c606fa7a4b1c862aad6d2acd5d2eefc35f1784bd
SHA1 hash: eaba8b3dd5cb1d90dc648f004b40410979d09e36
MD5 hash: 14ede9b23957c1f6951f9349aac1e5ff
humanhash: fillet-nevada-cardinal-virginia
File name:Fedex Express AWB_PDF.exe
Download: download sample
Signature Formbook
File size:584'192 bytes
First seen:2024-09-22 05:24:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:uHa0mNx2zIcbKWlCAH8ue+ISEyAxBjF7AHpuJotvbScHBzyyN8MwW:uqx2zd5p8Z+ISHAGschGyG
Threatray 1'643 similar samples on MalwareBazaar
TLSH T155C402B92274E516F8890BF900B2E3742675AF8DF45AD313DBDEBEFB7912600A406351
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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 abuse_ch
Tags:exe FedEx FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
391
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Fedex Express AWB_PDF.exe
Verdict:
Malicious activity
Analysis date:
2024-09-22 05:51:27 UTC
Tags:
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:
Generic Static Stealth Msil Monitor Snake Msil
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed snakekeylogger
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
AI detected suspicious sample
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
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1515294 Sample: Fedex Express AWB_PDF.exe Startdate: 22/09/2024 Architecture: WINDOWS Score: 100 31 www.usanscanneritaly63.sbs 2->31 33 www.sksiniaja7.buzz 2->33 35 9 other IPs or domains 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 11 other signatures 2->43 11 Fedex Express AWB_PDF.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\...\Fedex Express AWB_PDF.exe.log, ASCII 11->29 dropped 51 Injects a PE file into a foreign processes 11->51 15 Fedex Express AWB_PDF.exe 11->15         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 15->53 55 Maps a DLL or memory area into another process 15->55 57 Sample uses process hollowing technique 15->57 59 2 other signatures 15->59 18 explorer.exe 97 7 15->18 injected process9 process10 20 rundll32.exe 18->20         started        23 autofmt.exe 18->23         started        signatures11 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49 25 cmd.exe 1 20->25         started        process12 process13 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Status:
Malicious
First seen:
2024-09-19 18:38:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:b31a discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Malicious
Tags:
formbook
YARA:
n/a
Unpacked files
SH256 hash:
c83c0a367712867b960ce8d742a57cfe6231d65cfe5eb14cdcced497d77fcd65
MD5 hash:
3abd239253118b6d0a823b9efd1ca97c
SHA1 hash:
1da5c763b07be907a24dc57d3d22e278ca9be6ad
Detections:
FormBook win_formbook_g0 win_formbook_auto win_formbook_w0 Formbook
SH256 hash:
1059317b10d34377553366ccf1db8f8fbf47f4675390a1085d5dfcc0520dd064
MD5 hash:
5590c5235869d7677721ea1a7d8eb7e6
SHA1 hash:
5f3c369396d492c86e2dcd6ce413811fc8baf125
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
42e319dba75dc914d5645a6fc1025984c6e64a34303cb7c5e9b936aade524efe
MD5 hash:
14ede9b23957c1f6951f9349aac1e5ff
SHA1 hash:
eaba8b3dd5cb1d90dc648f004b40410979d09e36
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:NET
Author:malware-lu
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.

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 (HIGH_ENTROPY_VA)high

Comments