MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb9934d2f592f67086f8c33eaf75eab1d048b9985b6acf297aca4c98d07ddda1. 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: cb9934d2f592f67086f8c33eaf75eab1d048b9985b6acf297aca4c98d07ddda1
SHA3-384 hash: bcc0240df87c41266249b76edc6ed92d358e03cf8f0d382f48108ba71a6cd63c8b358a42cc0bbaca5575a95f15638e10
SHA1 hash: 36c11d01711305cb6e80ae048b5597d88801bffb
MD5 hash: 2decf4c9c21eeb5b0bb46f8af5f733c3
humanhash: golf-alanine-jupiter-quebec
File name:2decf4c9c21eeb5b0bb46f8af5f733c3
Download: download sample
Signature Formbook
File size:564'736 bytes
First seen:2022-07-09 19:44:12 UTC
Last seen:2022-07-14 04:57:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Mu2iN/2iNa5/UgR4ZUgHFxXHwNJtSKAn4/RkPRxliW18nWjqtGG:31J1VguZFHQvvM4JkPRrh8WjWGG
TLSH T1D2C4129C33A8093BD7DA99FA1488B25517F0905AF2D0E3C3BDE921E6ACA47EC45413D7
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 b3b3333969693b3b (69 x Formbook, 63 x AgentTesla, 26 x Loki)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
369
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed wacatac
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
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 660284 Sample: mMqWItjkQF Startdate: 09/07/2022 Architecture: WINDOWS Score: 100 31 www.ac1339.com 2->31 33 v013qpn.yunjidns8.com 2->33 41 Snort IDS alert for network traffic 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 10 other signatures 2->47 11 mMqWItjkQF.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\mMqWItjkQF.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 mMqWItjkQF.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.buggababy.com 154.208.75.254, 49820, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 18->35 37 www.astroableme.xyz 188.114.96.3, 49843, 80 CLOUDFLARENETUS European Union 18->37 39 www.bingchuan.xyz 3.64.163.50, 49802, 80 AMAZON-02US United States 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Performs DNS queries to domains with low reputation 18->51 22 wscript.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.RealProtectPENGSD
Status:
Malicious
First seen:
2022-06-28 10:28:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:p0p6 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
23e684e06197e25ba3ff1928827ba575c73efa0f5d1fc0ba54edcac63beff53d
MD5 hash:
987c6196fbff9cbde2a274687663a484
SHA1 hash:
af40f206cc9a00d535569ac78ec5467a6ae0cbfe
Detections:
win_formbook_g0 win_formbook_auto FormBook
SH256 hash:
873d0485a505a206af6bab6db32e60b8c2c311cfa14b6b6a7e03f91c3f04d0ea
MD5 hash:
d6056ca10877132c43bdc4a5cfb39d57
SHA1 hash:
c42a12e49e30e8e802f463c5ca4df45e3358d34a
SH256 hash:
aaa3d2f1e881a6b975337c198f0e0d1b0095d9ad7a3e20dc118de80f0becdfa5
MD5 hash:
6936f246627d4cc806f7c733a702f242
SHA1 hash:
859fc7ed23af93605e3e135f7a80f4541b4c3995
SH256 hash:
b9ad7823f9da1cddfebad7db20cd1c5c6f05b4cc3c27f3de31c73cf43d1d6064
MD5 hash:
0a316afcfad8090d575dd81f646d03eb
SHA1 hash:
6f853a06c00d6975aeccf211d032e64fc5afd7eb
SH256 hash:
7ecf1327c8f1500d4ba28f402326a60c25f55abd3e42c1df2d77e50ed24b81a0
MD5 hash:
7dd3d72a41fa6a475629ade4a262773b
SHA1 hash:
2a9dc468e361ca0dc0fc9f9c36eb2057ac8b52ee
SH256 hash:
cb9934d2f592f67086f8c33eaf75eab1d048b9985b6acf297aca4c98d07ddda1
MD5 hash:
2decf4c9c21eeb5b0bb46f8af5f733c3
SHA1 hash:
36c11d01711305cb6e80ae048b5597d88801bffb
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 cb9934d2f592f67086f8c33eaf75eab1d048b9985b6acf297aca4c98d07ddda1

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-07-09 19:44:16 UTC

url : hxxp://85.202.169.21/petitzx.exe