MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4af5374d05140e1ebf05625397c061e7e6e6396597399880f903cdda22466875. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments

SHA256 hash: 4af5374d05140e1ebf05625397c061e7e6e6396597399880f903cdda22466875
SHA3-384 hash: f0790d43945f6aff5e720222ad2e9b22ff09cd09aa92a9b22b6a6f3d228bca7b013ee56fc78ecafc25719b9f463eb794
SHA1 hash: f52a1d2cb7613c8fea67466dbbbce684541076a5
MD5 hash: 4e0a57febe7c13d6f294ea34cbfc5cbf
humanhash: shade-harry-vegan-mountain
File name:DHL_AWB#607853880911.exe
Download: download sample
Signature Formbook
File size:816'128 bytes
First seen:2023-10-06 14:22:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'453 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:0uLklAVXeIpaVidw9koilGCKfwd2WQkRv0yw1FuZdu:NLvV+19pilHK4dj9R8Hu+
Threatray 29 similar samples on MalwareBazaar
TLSH T15205126176A88B22D27507FC59B0354603F26C1F6631D24BFEE530CA88ADF264A91FD7
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:DHL exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
277
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Restart of the analyzed sample
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1321027 Sample: DHL_AWB#607853880911.exe Startdate: 06/10/2023 Architecture: WINDOWS Score: 100 33 www.usedcarsloveland.online 2->33 35 www.refil3d.store 2->35 37 11 other IPs or domains 2->37 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 8 other signatures 2->45 11 DHL_AWB#607853880911.exe 3 2->11         started        signatures3 process4 signatures5 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Injects a PE file into a foreign processes 11->55 14 DHL_AWB#607853880911.exe 11->14         started        process6 signatures7 57 Modifies the context of a thread in another process (thread injection) 14->57 59 Maps a DLL or memory area into another process 14->59 61 Sample uses process hollowing technique 14->61 63 Queues an APC in another process (thread injection) 14->63 17 explorer.exe 40 1 14->17 injected process8 dnsIp9 27 aeras-pro.com 162.240.81.18, 49723, 80 UNIFIEDLAYER-AS-1US United States 17->27 29 www.corusersystores.com 212.227.172.254, 49719, 80 ONEANDONE-ASBrauerstrasse48DE Germany 17->29 31 7 other IPs or domains 17->31 20 control.exe 17->20         started        process10 signatures11 47 Modifies the context of a thread in another process (thread injection) 20->47 49 Maps a DLL or memory area into another process 20->49 51 Tries to detect virtualization through RDTSC time measurements 20->51 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-10-05 19:39:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
21 of 35 (60.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ny02 rat spyware stealer trojan
Behaviour
Gathers network information
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
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
3a247e8af85ac5aae079ce7a58623e51c1d8df5b30c9601a153280f8368e8810
MD5 hash:
f9044d79d5278b36ba66e311d265b5f9
SHA1 hash:
5440f989f3a89ec7d9bce378d2e43c5a2ad413f5
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
SH256 hash:
af10a81d30ea6c14a0857caa64697f78672a941419d679b34eedb82e080ad46b
MD5 hash:
ec0b80883f0b18fb75a48dd18795f514
SHA1 hash:
afe9537c27362b6769a1df0ad414b8e58d34ea40
SH256 hash:
0666488de72b14e608641bb8af5da976a3e5b44405e29660c92f942d077a3a35
MD5 hash:
8fadcd6020ca2f4850f23950cf980798
SHA1 hash:
a07befb3f76e66616247846c6cb01ce647333a30
SH256 hash:
4af5374d05140e1ebf05625397c061e7e6e6396597399880f903cdda22466875
MD5 hash:
4e0a57febe7c13d6f294ea34cbfc5cbf
SHA1 hash:
f52a1d2cb7613c8fea67466dbbbce684541076a5
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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.

Malspam

Formbook

Executable exe 4af5374d05140e1ebf05625397c061e7e6e6396597399880f903cdda22466875

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments