MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dcd8224cd0d5fe42915e364b2ea7cfe95f69704688f44c818b81b4cd0b836ad8. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments 1

SHA256 hash: dcd8224cd0d5fe42915e364b2ea7cfe95f69704688f44c818b81b4cd0b836ad8
SHA3-384 hash: d01205a4445c722487d36a5e4d0e35e0282e21f95b800ff3996b43eb26c093c16ddc11c1e9c3c22ce7cd735b19a77bdb
SHA1 hash: 5bded28ca4227a75e5d15ee7d086789c7ed29f4c
MD5 hash: 92d132ecef05206f6c5aa19e6ed82b79
humanhash: stairway-butter-pluto-floor
File name:92d132ecef05206f6c5aa19e6ed82b79
Download: download sample
Signature Formbook
File size:1'068'032 bytes
First seen:2022-06-09 12:13:07 UTC
Last seen:2022-07-14 07:58:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:ZwXDPg8qMLeVQoNJEApkHQE5APSr5PXpAtoraGo7uW/2cQL9FvPjgy2QpXpb0L:ZwPg8DeVHGPHQEaPSv/HW/fQRhj
TLSH T13A35C00577A8AB32D3AF3776E4D0269E27716243E25AFF4C8AC8D5DD2417305EE0252B
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
258
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
92d132ecef05206f6c5aa19e6ed82b79
Verdict:
Suspicious activity
Analysis date:
2022-06-09 22:59:46 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Sending a custom TCP request
Launching a process
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Injects a PE file into a foreign processes
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)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 642468 Sample: vzelSdR55F Startdate: 09/06/2022 Architecture: WINDOWS Score: 100 32 www.obokbusinessbootcamp.com 2->32 34 obokbusinessbootcamp.com 2->34 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 8 other signatures 2->50 11 vzelSdR55F.exe 1 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\vzelSdR55F.exe.log, ASCII 11->30 dropped 62 Writes to foreign memory regions 11->62 64 Allocates memory in foreign processes 11->64 66 Injects a PE file into a foreign processes 11->66 15 compact.exe 11->15         started        signatures6 process7 signatures8 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Maps a DLL or memory area into another process 15->70 72 Sample uses process hollowing technique 15->72 74 2 other signatures 15->74 18 explorer.exe 15->18 injected process9 dnsIp10 36 www.hhhzzz.xyz 199.101.171.148, 49757, 49763, 80 UK2NET-ASGB Canada 18->36 38 www.mecontaisso.com 103.224.212.221, 49756, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 18->38 40 6 other IPs or domains 18->40 52 System process connects to network (likely due to code injection or exploit) 18->52 54 Performs DNS queries to domains with low reputation 18->54 22 msiexec.exe 12 18->22         started        signatures11 process12 dnsIp13 42 www.hhhzzz.xyz 22->42 56 Performs DNS queries to domains with low reputation 22->56 58 Modifies the context of a thread in another process (thread injection) 22->58 60 Maps a DLL or memory area into another process 22->60 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-06-06 01:42:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:zgtb loader persistence rat spyware stealer suricata
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
aebcf52b3961d658ca6746e6053fd2613cf84fff42a8f0df5778a1959fec3ac4
MD5 hash:
02d55256c626ff80891b884429160b25
SHA1 hash:
670696efe28e58d1027191abcecd67a342cd9615
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
SH256 hash:
dcd8224cd0d5fe42915e364b2ea7cfe95f69704688f44c818b81b4cd0b836ad8
MD5 hash:
92d132ecef05206f6c5aa19e6ed82b79
SHA1 hash:
5bded28ca4227a75e5d15ee7d086789c7ed29f4c
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: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.

Web download

Formbook

Executable exe dcd8224cd0d5fe42915e364b2ea7cfe95f69704688f44c818b81b4cd0b836ad8

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-06-09 12:13:14 UTC

url : hxxp://103.167.91.26/ms365cloud__/vbc.exe