MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9a94e9799cdc6438b23da4933852c98049ecf6a332f15c4636647823628050a. 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: 14


Intelligence 14 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9a94e9799cdc6438b23da4933852c98049ecf6a332f15c4636647823628050a
SHA3-384 hash: 24cc67193195945e42a8c8a08d295a36ed2fa4a7e887ab4c83edfcf1b78fe1547367fefe28f1c259fbf28a3645135d1d
SHA1 hash: 7df95e2f0255252a390c9857c09f1d3a51f7b07b
MD5 hash: 10981ccc15788e18a8bb220a04b61f47
humanhash: blue-echo-west-speaker
File name:proforma fatura.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:242'340 bytes
First seen:2022-12-20 10:15:49 UTC
Last seen:2022-12-20 11:32:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 97318da386948415d08cef4a9006d669 (71 x Formbook, 35 x SnakeKeylogger, 26 x AgentTesla)
ssdeep 6144:LkwexunrMuMb21lQRA3EXn+DaDdLIA2qwMmwugBq2z3nzuTa3G:ooTMb21uRA3AW0wM+Iq2bAa2
TLSH T14634121B66D4C8BBE44316B5A6F7CA6CEBF2C8004112535B7FC54FFC69560C6292A1F1
TrID 92.7% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
172
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
proforma fatura.exe
Verdict:
Malicious activity
Analysis date:
2022-12-20 10:18:29 UTC
Tags:
installer formbook xloader trojan stealer
Link:
https://app.any.run/tasks/c8d65f9a-f911-49c9-a8dc-ec5913578895

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/348318/
Detection(s):
SecuriteInfo.com.FileRepMalware.17179.18397.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/32586789-abd9-495a-a287-cfc529d3fca1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1137840
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 770568 Sample: proforma fatura.exe Startdate: 20/12/2022 Architecture: WINDOWS Score: 100 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 3 other signatures 2->55 11 proforma fatura.exe 19 2->11         started        process3 file4 33 C:\Users\user\AppData\Local\Temp\faupds.exe, PE32 11->33 dropped 14 faupds.exe 1 11->14         started        process5 signatures6 65 Maps a DLL or memory area into another process 14->65 67 Tries to detect virtualization through RDTSC time measurements 14->67 17 faupds.exe 14->17         started        20 conhost.exe 14->20         started        process7 signatures8 41 Modifies the context of a thread in another process (thread injection) 17->41 43 Maps a DLL or memory area into another process 17->43 45 Sample uses process hollowing technique 17->45 47 Queues an APC in another process (thread injection) 17->47 22 explorer.exe 17->22 injected process9 dnsIp10 35 www.horrorkore.com 185.53.179.173, 49720, 80 TEAMINTERNET-ASDE Germany 22->35 37 jzecca.com 15.197.142.173, 49722, 80 TANDEMUS United States 22->37 39 www.jzecca.com 22->39 57 System process connects to network (likely due to code injection or exploit) 22->57 26 msdt.exe 22->26         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9a94e9799cdc6438b23da4933852c98049ecf6a332f15c4636647823628050a/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-12-20 10:16:06 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xguu5f4zzxdehczd3jethbjmtacj5t3kgmxrlrddmzdyenriaufa._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:tc10 rat spyware stealer trojan
Link:
https://tria.ge/reports/221220-mat1xacd5x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Gathering data
Unpacked files
SH256 hash:
6e49b2b262ac38f198d3041c9026e33d18c73016e94bde4ff1842f9d3b96939d
MD5 hash:
8b5455ff988635a46fea6849913985a2
SHA1 hash:
efdf67571da97a852a88e41112a1640074877732
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/6022ea27-35f4-4a39-a3e1-dcf27b3fd116/
Parent samples :
6665e9becfbcd071f9d5f1e8635dba4801a354dfb0bee53f4efafecb6146bba6
47d1e16275d98873c63ed2cfe032b171513ff063ccc19399815846d950ed09d6
8a8bd03d6e56297acd34652142a5cb999089c75e28decf038c43eeccc14158ba
13820d60b2e8ac752be35f8ac5f49aa70111dfd2a0fed40b58b5232ba93f0c23
bcb4b428f2487d1dfc2d5f36fdd7f334e7915a5fad15f46835f6a8420002c327
c7f9898398688b651f9a776fac4ac4780b9432c5f369b403aaaebbc9fa5656a4
e7f3ea9e207ee0ee8465346b51790d3f781e5b47fdc77f6ce17c2d88292b42d7
b9a94e9799cdc6438b23da4933852c98049ecf6a332f15c4636647823628050a
95707837be9289e4730cb3f0511c6a50f2356b34ad64d62a6ffbefc21c3d60e4
21bef61d089e5e691910c29a0095780e92c23359114b4dd64a207430785c7dc9
db89085cb8bc2e7764d21e9001a141cdc7445ff9d5950e59c4994eb110c62c08
5b5f4c31207ebd9feb2cc1c2917f09bb82a820c5af6b2558bce95152bf41d26d
4357e6c74bd16dcfcf4afbe5678f5edeff145db572ad937555d21dac6c5c5c8b
c68eeec669470f147bf9507222236740f428f2a385c6cdea0a80a7ede4124c93
bd09a540380532e512b757fdd8758d6c81c248b54da5fdcaf3d1a6b813b808af
SH256 hash:
887534fe34e9928224d5d1d5abc0b5b81ddf75d0ce063782d9a471fc35d47113
MD5 hash:
230ff639f0d42b5ca7ff1233cc0780d2
SHA1 hash:
3951a9e891752c177d310132d36acccb7a888fd9
Link:
https://www.unpac.me/results/6022ea27-35f4-4a39-a3e1-dcf27b3fd116/
SH256 hash:
b9a94e9799cdc6438b23da4933852c98049ecf6a332f15c4636647823628050a
MD5 hash:
10981ccc15788e18a8bb220a04b61f47
SHA1 hash:
7df95e2f0255252a390c9857c09f1d3a51f7b07b
Link:
https://www.unpac.me/results/6022ea27-35f4-4a39-a3e1-dcf27b3fd116/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b9a94e9799cd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/b9a94e9799cdc6438b23da4933852c98049ecf6a332f15c4636647823628050a

File information

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

Malspam

Formbook

Executable exe b9a94e9799cdc6438b23da4933852c98049ecf6a332f15c4636647823628050a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/348318/

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