MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1623f32f1937aa2290ac5c0cd3c132be192d4fad1782768bf1b705272e245ca5. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: 1623f32f1937aa2290ac5c0cd3c132be192d4fad1782768bf1b705272e245ca5
SHA3-384 hash: 9cf59a86618dac268a800ea900269afe4c69aacea54b5a53dbb734a2d6ccd830d6318f5563e722ba76c9d5e3e812190c
SHA1 hash: 78351358ad514c959c0f8f4a6d59922e89eaeec1
MD5 hash: c3b0ee154a8f326520f0048aeb2042ac
humanhash: freddie-west-sad-nebraska
File name:PROFORMA.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:279'224 bytes
First seen:2022-06-24 04:22:46 UTC
Last seen:2022-06-24 07:15:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:nFw6UCDvxlA5NveocBgRuOrct1LCZqEjA+mBgoGd9TNE:FwZaw0xBIuzrgPerCw
TLSH T15C54E13E3BE45D02C9E95635C0D2411827F2D64276B3C7CE799C42994F833A66D8EACD
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
3
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/282862/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/62b53c42e88d6da4ffc16aff/reports/5cdea02e-7427-4d4c-b406-1dbae4085fec/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c4dd5c12-7ba3-4151-8717-9e47353330d0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1019064
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)
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
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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 651560 Sample: PROFORMA.exe Startdate: 24/06/2022 Architecture: WINDOWS Score: 100 31 www.xn--h1adya.site 2->31 33 www.enailsrestra.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 6 other signatures 2->47 11 PROFORMA.exe 1 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\PROFORMA.exe.log, ASCII 11->29 dropped 57 Writes to foreign memory regions 11->57 59 Allocates memory in foreign processes 11->59 61 Injects a PE file into a foreign processes 11->61 63 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->63 15 cvtres.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 2 other signatures 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 35 paulastone.site 207.174.214.82, 49853, 80 PUBLIC-DOMAIN-REGISTRYUS United States 18->35 37 craretsness.com 212.83.182.73, 49764, 80 OnlineSASFR France 18->37 39 12 other IPs or domains 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 msiexec.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 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1623f32f1937aa2290ac5c0cd3c132be192d4fad1782768bf1b705272e245ca5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-24 04:23:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cyr7glyzg6vcfefmlqgnhqjsxyms2t5nc6bhnc7rw4csolrelssq._file
Verdict:
unknown
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:k0dn loader persistence rat spyware stealer suricata
Link:
https://tria.ge/reports/220624-ezskdaceb3/
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
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
eb1bc8ce5d20bc63003be8e9bf7a01185040f631e988f2574346936542fb0b08
MD5 hash:
4fbadbe3906d6d029a770616e042a91b
SHA1 hash:
e28889864400b184a9e11c4e365899e2d9f0c7f2
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
XLoader
Create hunting rule
Link:
https://www.unpac.me/results/1b8fdf9b-1797-488b-9cfc-a3476d9565d1/
Parent samples :
444785a229ad49a95ce3ac8e0b1e0485fb7dce76d521331397702cdfae648607
63a24a782f2d4f31f57886852f84eda1eea782ab040cebb37d9325c8da6f2b93
6f953b35fe9f1aa984e06446bc6353ecf594c6dbe11e7b07be43bd6e0eb8ad9a
0fcd6e9b28b7605ca9775462603f308e1a598528ff0674e297d66253619f42f4
1623f32f1937aa2290ac5c0cd3c132be192d4fad1782768bf1b705272e245ca5
abaea9c3b27ce7b16be954313ac278a2858afdec6e8baa408e6a6944e30ee4a0
SH256 hash:
174bdbf9002cf7d40326271dcf6a32ffadbb025159fc35d0c8fdc24370f78717
MD5 hash:
33177eb3ca2eaaecec887064b6c3312d
SHA1 hash:
e6a945ea481551183ce19b75532d98d15e9c671c
Link:
https://www.unpac.me/results/1b8fdf9b-1797-488b-9cfc-a3476d9565d1/
SH256 hash:
1623f32f1937aa2290ac5c0cd3c132be192d4fad1782768bf1b705272e245ca5
MD5 hash:
c3b0ee154a8f326520f0048aeb2042ac
SHA1 hash:
78351358ad514c959c0f8f4a6d59922e89eaeec1
Link:
https://www.unpac.me/results/1b8fdf9b-1797-488b-9cfc-a3476d9565d1/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1623f32f1937/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/1623f32f1937aa2290ac5c0cd3c132be192d4fad1782768bf1b705272e245ca5

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:MALWARE_Win_zgRAT
Create hunting rule
Author:ditekSHen
Description:Detects zgRAT
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 1623f32f1937aa2290ac5c0cd3c132be192d4fad1782768bf1b705272e245ca5

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/282862/

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