MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7ffd8a13ecf1f8cb62fe0dc158fd9cfcdd9a871610970ac6f824e913f5586ee5. 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 3 File information Comments

SHA256 hash: 7ffd8a13ecf1f8cb62fe0dc158fd9cfcdd9a871610970ac6f824e913f5586ee5
SHA3-384 hash: 5979fdc8a664939e11750d4d5e65b9e7a7f35abd19639704fb4ac0894af0c44bc7e1f433be1c9109907c8381a46777dd
SHA1 hash: e6c7b3f3574cda2a3b6144c38357c2f3fd802aad
MD5 hash: 02ecdc90bd04b7d55c1ac893e3f2d2c3
humanhash: double-muppet-nitrogen-ack
File name:PO_0002015153,pdf.exe
Download: download sample
Signature Formbook
File size:398'520 bytes
First seen:2022-06-16 12:05:56 UTC
Last seen:2022-06-16 12:43:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:DtvbmhngnUmfGgInm0WpCjVZxikozmSAeUrjYGAiuva856TNE:1mufD0rjMJKmUrc/HfF
TLSH T16584BF6BF68D8B0DC74996B1B4FA5A310391EF531233CB55B9C8FE2C067126E6B412C6
TrID 52.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.5% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 6ccccc9cc4d8e8f4 (41 x Formbook, 34 x AgentTesla, 3 x AveMariaRAT)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
2
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
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
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 647005 Sample: PO_0002015153,pdf.exe Startdate: 16/06/2022 Architecture: WINDOWS Score: 100 32 www.dinotacker.com 2->32 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->54 56 7 other signatures 2->56 11 PO_0002015153,pdf.exe 1 2->11         started        signatures3 process4 file5 30 C:\Users\user\...\PO_0002015153,pdf.exe.log, ASCII 11->30 dropped 58 Writes to foreign memory regions 11->58 60 Allocates memory in foreign processes 11->60 62 Injects a PE file into a foreign processes 11->62 64 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->64 15 cvtres.exe 11->15         started        signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 15->66 68 Maps a DLL or memory area into another process 15->68 70 Sample uses process hollowing technique 15->70 72 2 other signatures 15->72 18 wlanext.exe 1 12 15->18         started        21 explorer.exe 15->21 injected process9 dnsIp10 40 Tries to steal Mail credentials (via file / registry access) 18->40 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Tries to detect virtualization through RDTSC time measurements 18->46 24 cmd.exe 1 18->24         started        34 www.momentums6.com 199.192.20.96, 49792, 80 NAMECHEAP-NETUS United States 21->34 36 www.oneruk-chandeliercleaning.com 119.59.104.13, 49787, 80 METRABYTE-TH453LadplacoutJorakhaebuaTH Thailand 21->36 38 5 other IPs or domains 21->38 48 System process connects to network (likely due to code injection or exploit) 21->48 signatures11 process12 process13 26 conhost.exe 24->26         started        process14 28 conhost.exe 26->28         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-06-16 03:58:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:tn61 loader persistence rat spyware stealer suricata 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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Executes dropped EXE
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
c255e016dab3d29f31f8ab97b4a51e424267fd456a7a7b1fad5610b4c2b97fc0
MD5 hash:
dc42037bc83489ba6ac2513a184590c3
SHA1 hash:
26e3e9e7a3d125b7c9926a11ffcf61b8f4d5f405
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
b25c9421bd7aaeb82053c06f94a60cac7231609877fbbf547f30cc4928d30ba6
MD5 hash:
91ab89485e9414fb7e3cb91944a01aa8
SHA1 hash:
43a4213e6745c2167f5415b84081a0a888decec9
SH256 hash:
7ffd8a13ecf1f8cb62fe0dc158fd9cfcdd9a871610970ac6f824e913f5586ee5
MD5 hash:
02ecdc90bd04b7d55c1ac893e3f2d2c3
SHA1 hash:
e6c7b3f3574cda2a3b6144c38357c2f3fd802aad
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:exploit_any_poppopret
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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.

Comments