MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 766ea01c507a77db5c1a0e9bf288049b4cbea966aec35c45e054f9c0af9e7f36. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments 1

SHA256 hash: 766ea01c507a77db5c1a0e9bf288049b4cbea966aec35c45e054f9c0af9e7f36
SHA3-384 hash: f296178156c3671cefa8d5817cb97ece3feb72c4e04c548b2f8a6fbaf3976dfc0ac81b2665fd4a26ce26d1821850e403
SHA1 hash: 9f8a4109c33022aaf707b307355b678e2767f709
MD5 hash: 602db2d5241aa2dd40c8fe1f38c2c477
humanhash: carpet-early-floor-william
File name:602db2d5241aa2dd40c8fe1f38c2c477
Download: download sample
Signature Formbook
File size:830'464 bytes
First seen:2022-11-14 07:59:20 UTC
Last seen:2022-11-15 21:03:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:25uHzxJU2TVSyYXLTwtNunPZU8IHnzRaRpYLD1fO31vcyx79n4S+YajyPmRisEOg:9zk2ERLsruC8IHYRpYLD1fOOE7RVxNZ
TLSH T1620529097073F07EDD2B89FF97642E5EEABC251A220EC24A841773A6684C577FD24097
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)
File icon (PE):PE icon
dhash icon 71e06849da92b470 (3 x Formbook, 2 x AgentTesla, 1 x Loki)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
171
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
VCLJEABND2008522.xls
Verdict:
Malicious activity
Analysis date:
2022-11-14 07:03:43 UTC
Tags:
macros opendir exploit cve-2017-11882 loader 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 window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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 potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 745390 Sample: uLrxblb4aU.exe Startdate: 14/11/2022 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus detection for URL or domain 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 6 other signatures 2->38 8 uLrxblb4aU.exe 3 2->8         started        process3 file4 22 C:\Users\user\AppData\...\uLrxblb4aU.exe.log, ASCII 8->22 dropped 48 Injects a PE file into a foreign processes 8->48 12 uLrxblb4aU.exe 8->12         started        signatures5 process6 signatures7 50 Modifies the context of a thread in another process (thread injection) 12->50 52 Maps a DLL or memory area into another process 12->52 54 Sample uses process hollowing technique 12->54 56 Queues an APC in another process (thread injection) 12->56 15 explorer.exe 12->15 injected process8 dnsIp9 24 xn--29-oj9ik7b890b.net 50.87.192.144, 49710, 80 UNIFIEDLAYER-AS-1US United States 15->24 26 www.dafdental.com 209.99.40.222, 49711, 49713, 80 CONFLUENCE-NETWORK-INCVG United States 15->26 28 2 other IPs or domains 15->28 30 System process connects to network (likely due to code injection or exploit) 15->30 19 control.exe 13 15->19         started        signatures10 process11 signatures12 40 Tries to steal Mail credentials (via file / registry access) 19->40 42 Tries to harvest and steal browser information (history, passwords, etc) 19->42 44 Deletes itself after installation 19->44 46 2 other signatures 19->46
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2022-11-14 04:00:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 25 (80.00%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:cfvc rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
c2ad820dbdac7366053658108f6bc2f7c5e50f7116eada4da668e7aca5c5cc3d
MD5 hash:
4f11e28ebec79ccb4939086fa1bba6da
SHA1 hash:
b2e737b5185ed3b531064ecb5f61d8fb76aeb701
SH256 hash:
fb75c2c793169c078f5cdcc64c274629ccc36ba450e86cd4ff9f7a7e2d5736fe
MD5 hash:
5dce95ba36d2076370095205c8ce0049
SHA1 hash:
552c589af0ed415be8c7b8e3193af9ea08e4bc4c
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
SH256 hash:
1f4923849e4eb1287d7a544e56ec8801b34cd6649fedf9b33f8fa1cb09ea7637
MD5 hash:
a42a6414beb9d7008b992d97fdbf1479
SHA1 hash:
0822631ea8bda21508699cb03ee72290e9839fe2
SH256 hash:
766ea01c507a77db5c1a0e9bf288049b4cbea966aec35c45e054f9c0af9e7f36
MD5 hash:
602db2d5241aa2dd40c8fe1f38c2c477
SHA1 hash:
9f8a4109c33022aaf707b307355b678e2767f709
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 766ea01c507a77db5c1a0e9bf288049b4cbea966aec35c45e054f9c0af9e7f36

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-11-14 07:59:28 UTC

url : hxxp://103.149.137.43/OneDrive/networksec.exe