MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c
SHA3-384 hash: 1500019e7eb9dc4f254b4cb4717835f2cb5d18db0155912997530fb045d22ec9099177efc22e52333eba178ae010c05a
SHA1 hash: 11189405de042e38b6d5a7d5ba9250e091d8a0fe
MD5 hash: d0776103a16d59cf8a53d84854377371
humanhash: wisconsin-montana-juliet-diet
File name:RFQ.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:863'232 bytes
First seen:2021-02-23 07:21:39 UTC
Last seen:2021-02-23 08:45:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'449 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:VlTEPaX1TLseNwPmJoLwv3ZUWVktSiyyjK:VAalP5wPmjv38td8
Threatray 2'130 similar samples on MalwareBazaar
TLSH 80055B0172E88945F1B73BB15CBFDE7017757CDAA834C20D2B827AAF69B2701546272B
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: slot0.nindacc.com
Sending IP: 185.142.24.12
From: Aren Hong <postmaster@nindacc.com>
Subject: RE: Sales Order
Attachment: RFQ.zip (contains "RFQ.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
110
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118503/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42850.31978.3114.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/614978
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 dnsIp2 2 Behavior Graph ID: 356498 Sample: RFQ.exe Startdate: 23/02/2021 Architecture: WINDOWS Score: 100 31 www.ghoshtechno.com 2->31 33 ghs.googlehosted.com 2->33 35 www.ghoshtechno.com.ghs.googlehosted.com 2->35 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 5 other signatures 2->47 11 RFQ.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\RFQ.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 RFQ.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.eudorabcantik.com 144.208.69.172, 49746, 80 IMH-WESTUS United States 18->37 39 www.skincolored.com 52.58.78.16, 49749, 80 AMAZON-02US United States 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 rundll32.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 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/8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c/
Threat name:
ByteCode-MSIL.Trojan.Barys
Create hunting rule
Status:
Malicious
First seen:
2021-02-23 02:38:56 UTC
AV detection:
8 of 48 (16.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rs62swiv7s4ws3soeionw4xz3sixllzh4nepaw7n4p4yrlxja4ga._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
05c3b01f3f582815a9a5c99845273306a23302342adf5215c7fb817e963cc4e0
Formbook
0db69eb6654d1090cb17ab58537a7304e2c269613c0edabf123cf230d289db73
Formbook
4d7785dcd99beca572613788bc8b0713ddda6da0c8df321b1402bc38e6880f88
Formbook
6a37a2a65393b805bbe4e7e4e42b642da433e9caa7436aaeb9df8ab0fc6679b9
Formbook
8eb77ec70c44e86607e97ce926cdb4e0610a0199c348fa329dba50bef34d5fc1
Formbook
92737036f323b1c72064c1e8038a942266435048a3ce4847f7e5b29558376c1c
Formbook
ad855c55e13ef5274a20805a3836b508c29cae12d0a2de2807aed08ed4090ddd
Formbook
bf07178f2c85eed5d1e0feafc5c312fce344c6ad7666b5be2abf736e6af94169
Formbook
d8ae48ff83b31d072c1a9d988660e2a0be125aa9373a4adb1dd807d0fea4ebe5
Formbook
e836c2aecd7a2ae83a5bb088780d9e7b8cd6c3a7ff6b9c3f1261bfd1f53dbef7
Formbook
+ 2'120 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210223-1qfn2ptqdn/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.talllensphotography.com/md5/
Unpacked files
SH256 hash:
22f771487d353ef9e9719c760f6f7ec683eee79ef3232a16efa6ce5e96e582ac
MD5 hash:
4442710d8f704d4bb46a770884eb8c94
SHA1 hash:
dae7388dabd1e8cfea63193b2dd0e7768da11dd7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0c355e38-157f-4b77-8aba-488a0dc885b3/
Parent samples :
8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c
5f31b8fc53f4628aa678d164b995732bea8affd218185d69f1ad86e65bb7757a
d96879b03c94cdf3e91756c0454825de2920b90cc7ffe73272692d572b930950
0cec69e7857e687c0352812a4206e68f57008ea07d34b51bb9b1fc44ef042ff6
69a395d24a3536ef7698ae036596bed55856d4777356946f498faec3f1395f8d
SH256 hash:
2102374851957c103b0eae0b62e97b2c913a90819675d3c0eb43a895080d151f
MD5 hash:
4d497ef79675aa6aa473e42a8cba9a51
SHA1 hash:
fd8b4d8c8991feb6069e509a6587d180ae7763f9
Link:
https://www.unpac.me/results/0c355e38-157f-4b77-8aba-488a0dc885b3/
SH256 hash:
f0a09c48af16c079c37ad0914f18897976357981fe5ee6f556ab9f9f70b9a671
MD5 hash:
f984a71581f6da5732110be2a569a392
SHA1 hash:
10de05b6b35fc5dbc00c42d59a4b850bcaae01e6
Link:
https://www.unpac.me/results/0c355e38-157f-4b77-8aba-488a0dc885b3/
SH256 hash:
8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c
MD5 hash:
d0776103a16d59cf8a53d84854377371
SHA1 hash:
11189405de042e38b6d5a7d5ba9250e091d8a0fe
Link:
https://www.unpac.me/results/0c355e38-157f-4b77-8aba-488a0dc885b3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:RSharedStrings
Create hunting rule
Author:Katie Kleemola
Description:identifiers for remote and gmremote

File information

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

Malspam

Formbook

zip e2319a658a3e5c3c3ea026cd0442221937013727ff6de4b7aec80a4cb42ef631

Formbook

Executable exe 8cbda95915fcb9696e4e221cdb72f9dc9175af27e348f05bede3f988aee9070c

(this sample)

  
Dropped by
MD5 7f50aba5fbcedf5ced5731ed787c8ecd
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118503/
  
Dropped by
SHA256 e2319a658a3e5c3c3ea026cd0442221937013727ff6de4b7aec80a4cb42ef631

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