MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57. 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 2 File information Comments

SHA256 hash: fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57
SHA3-384 hash: 14c5bb394ce4a62815128c8c3c405087f9cbdf2c36956f15fc524a97b585f8d3c45539f6ef3df0a9c58c89d906da0729
SHA1 hash: ddc2f854e96e649a300c6cba5bc8d57d0af8de58
MD5 hash: c20af4b2b3bcb4bb82ef4a78818caffa
humanhash: lithium-leopard-sink-friend
File name:Fedex Delivery.exe
Download: download sample
Signature Formbook
File size:230'579 bytes
First seen:2022-11-01 19:28:09 UTC
Last seen:2022-11-01 22:03:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 3072:qUJoFfWzzl+cSMY7xIsqoh3vpj+WSuW2x96i6e4coO81ju5qoRNir+QKQqjQgWmA:qweEpGxj9pHHeFwVNr7jzUBWnk/fZ
TLSH T17D34123F77E0966BC1DB48B2DABD772AD3B2920D4321265F67605E7E05721C6CE08392
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.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 abuse_ch
Tags:exe FedEx FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
343
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Fedex Delivery.exe
Verdict:
Malicious activity
Analysis date:
2022-11-01 19:29:15 UTC
Tags:
formbook 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 process from a recently created file
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
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.spyw.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 dropped file
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 domain / URL
Multi AV Scanner detection for dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 735413 Sample: Fedex Delivery.exe Startdate: 01/11/2022 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Multi AV Scanner detection for domain / URL 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 4 other signatures 2->39 9 Fedex Delivery.exe 18 2->9         started        process3 file4 25 C:\Users\user\AppData\Local\Temp\bquztp.exe, PE32 9->25 dropped 12 bquztp.exe 9->12         started        process5 signatures6 51 Multi AV Scanner detection for dropped file 12->51 53 Machine Learning detection for dropped file 12->53 55 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->55 57 Maps a DLL or memory area into another process 12->57 15 bquztp.exe 12->15         started        process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 27 boxgamevn.com 103.200.23.179, 49708, 49709, 49710 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN Viet Nam 18->27 29 eatingdisorderstest.site 64.190.62.22, 49698, 80 NBS11696US United States 18->29 31 7 other IPs or domains 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 22 mstsc.exe 13 18->22         started        signatures11 process12 signatures13 43 Tries to steal Mail credentials (via file / registry access) 22->43 45 Tries to harvest and steal browser information (history, passwords, etc) 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49
Threat name:
Win32.Trojan.Tnega
Status:
Malicious
First seen:
2022-11-01 19:29:09 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:fqsu loader rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook
Xloader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
bbc5a60f9140e40979a13d24e8fae142bff9140af94fe95cc1455160781aafbb
MD5 hash:
f13d54398929634fd143ef5ea8c6a3e3
SHA1 hash:
2c9224e7a169098f9c05f869746e84fb7f6fd928
Detections:
XLoader win_formbook_auto win_formbook_g0
SH256 hash:
fc1e9c9d0524f405aab192c521a553a1483ae0de315d3277a69402fdade05491
MD5 hash:
b2a5b0e0e70eb909712785ad6fd3d296
SHA1 hash:
cd4a580c6152738ecf553db9ec4fdc8673156f80
SH256 hash:
637c505b6998e82a9fee90658585e8a62b2e635cc2c2db585dd8966b5adba376
MD5 hash:
d3c7c1e45aafd249a07c1fe1c8a42ccb
SHA1 hash:
3fdb972f92bd51e3ec188d2b1cdc19e898837f8e
SH256 hash:
65ee75951e6521f88fb20afc0cd139c67aeedfedf1e0bf20c68aba0651966fbf
MD5 hash:
cf7ab7c102d5c97f8cdb6eebf32ba56f
SHA1 hash:
910c455a73cbb9637f4c9d151a056ba77613970f
SH256 hash:
fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57
MD5 hash:
c20af4b2b3bcb4bb82ef4a78818caffa
SHA1 hash:
ddc2f854e96e649a300c6cba5bc8d57d0af8de58
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:meth_get_eip
Author:Willi Ballenthin

File information


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

Malspam

Formbook

Executable exe fb4fddb4cbdf4cfe8a3c658c6634d4a1d653f9fa61c4ca2ecb069770bf3cae57

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments