MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4b306e65c16a66f2c0851d70709f117d2a93596fa9ad5905f99c99ea25aba10. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments

SHA256 hash: d4b306e65c16a66f2c0851d70709f117d2a93596fa9ad5905f99c99ea25aba10
SHA3-384 hash: 9d613e6d0b46b28e379a987b9a22902b22f712ad44bfefe3729fa4bfd287454b7221b8ef0ec0d743ff90e7973d792e84
SHA1 hash: 6d3b2d2b00e210d706e6f5746cae5e8cafae777b
MD5 hash: 15e76febd9a13cf44e211849c051a68c
humanhash: alpha-florida-yellow-seventeen
File name:Repeat Order 0831023.exe
Download: download sample
Signature Formbook
File size:977'920 bytes
First seen:2023-08-31 13:26:34 UTC
Last seen:2023-08-31 14:36:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:reunQk8WUgZxqyp/0knO+e8KnCqTsQlSC:nUexqahnXe8KnZTsQlS
Threatray 228 similar samples on MalwareBazaar
TLSH T1F1256A983100B5DEC917DC37C9682EB4AA21AD66979BD203901739DCBA3DA97CF105F3
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
307
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Repeat Order 0831023.exe
Verdict:
Malicious activity
Analysis date:
2023-08-31 13:26:54 UTC
Tags:
formbook xloader

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

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade 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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1301056 Sample: Repeat_Order_0831023.exe Startdate: 31/08/2023 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 10 other signatures 2->43 10 Repeat_Order_0831023.exe 3 2->10         started        process3 signatures4 51 Detected unpacking (changes PE section rights) 10->51 53 Detected unpacking (overwrites its own PE header) 10->53 55 Tries to detect virtualization through RDTSC time measurements 10->55 57 Injects a PE file into a foreign processes 10->57 13 Repeat_Order_0831023.exe 10->13         started        process5 signatures6 59 Modifies the context of a thread in another process (thread injection) 13->59 61 Maps a DLL or memory area into another process 13->61 63 Sample uses process hollowing technique 13->63 65 Queues an APC in another process (thread injection) 13->65 16 explorer.exe 4 1 13->16 injected process7 dnsIp8 27 www.lxdutzuc.click 43.154.67.170, 49728, 80 LILLY-ASUS Japan 16->27 29 truthistanbul.xyz 31.186.11.254, 49758, 80 BETAINTERNATIONALTR Turkey 16->29 31 5 other IPs or domains 16->31 33 System process connects to network (likely due to code injection or exploit) 16->33 35 Performs DNS queries to domains with low reputation 16->35 20 mstsc.exe 16->20         started        signatures9 process10 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 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Threat name:
Win32.Trojan.CrypterX
Status:
Malicious
First seen:
2023-08-31 12:01:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:v93r rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
892761d55890a0af5517cc5da1b7b251539f9d1b5e126616def3b66b60b25f50
MD5 hash:
1381fe1ab71c80397a78422051edbd51
SHA1 hash:
e258e5a6e54f6314944e713515d22906fa4520f7
SH256 hash:
259b1fcee05e79d307c6ff2f37557d63d608cd27d03491873717c93c80f757f2
MD5 hash:
ecedb344ef66a4cdc3248a57e529362a
SHA1 hash:
dca744239c0739fb13f5078917b6a207957d2520
SH256 hash:
c094444932babf732e788625413d66665af54fa789015decb7e2da3d3ab25dc3
MD5 hash:
49204dbac9267797c9f6679a4bac06ec
SHA1 hash:
5590f19a53f6e6a88d14adfbc83ea1cd7ae002c7
SH256 hash:
d4b306e65c16a66f2c0851d70709f117d2a93596fa9ad5905f99c99ea25aba10
MD5 hash:
15e76febd9a13cf44e211849c051a68c
SHA1 hash:
6d3b2d2b00e210d706e6f5746cae5e8cafae777b
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:NETexecutableMicrosoft
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.

  
Delivery method
Other

Comments