MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c079b62cce0d0718c3b1f26c3f0f359a7df94acf7e75aea710979fe338ea1f4f. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c079b62cce0d0718c3b1f26c3f0f359a7df94acf7e75aea710979fe338ea1f4f
SHA3-384 hash: f49f7253640a09e72323cd79e98eb2651e44a1a1f3a71f55f4d84dd88d1802c46bb39ff73c04a256155dd2b6057c8835
SHA1 hash: 0f75372b3010b9c9b70776ec6a0c1db85f6332ed
MD5 hash: 5c06a1860366ed65d2baba0844342b5e
humanhash: zulu-kitten-alaska-lima
File name:RFQ January.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:936'448 bytes
First seen:2021-01-12 07:25:42 UTC
Last seen:2021-01-12 08:55:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:1YDVc6oLwMb0hErTeKSxxWLZM+4ysJ4tLdALEptKv7OqKoe:1YBOLlK83SxxWLdIJ4Zdguc7OqKoe
TLSH CE15AE4231A85FF5EE3E83F12306810423F96DBF985DE2644EC531DB6AEAF850511B9B
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: cbdjo.cam
Sending IP: 111.90.159.32
From: Daniel Gomez <biuro@zurawie.info>
Reply-To: mzahar04@protonmail.com
Subject: FW:FW:RFQ
Attachment: RFQ January.zip (contains "RFQ January.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ January.exe
Verdict:
Malicious activity
Analysis date:
2021-01-12 08:31:52 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/e6559325-8d07-4047-8761-26f521849a3d

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/111435/
Detection(s):
SecuriteInfo.com.Trojan.Siggen11.57608.10395.24162.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/578727
Signature
.NET source code contains potential unpacker
Found malware configuration
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
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 338414 Sample: RFQ January.exe Startdate: 12/01/2021 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 9 other signatures 2->43 10 RFQ January.exe 3 2->10         started        process3 file4 27 C:\Users\user\AppData\...\RFQ January.exe.log, ASCII 10->27 dropped 13 RFQ January.exe 10->13         started        process5 signatures6 51 Modifies the context of a thread in another process (thread injection) 13->51 53 Maps a DLL or memory area into another process 13->53 55 Sample uses process hollowing technique 13->55 57 Queues an APC in another process (thread injection) 13->57 16 explorer.exe 13->16 injected process7 dnsIp8 29 tokomw.com 103.251.44.218, 49745, 80 IDNIC-JALANET-AS-IDPTJupiterJalaArtaID Indonesia 16->29 31 shops.myshopify.com 23.227.38.74, 49752, 80 CLOUDFLARENETUS Canada 16->31 33 7 other IPs or domains 16->33 35 System process connects to network (likely due to code injection or exploit) 16->35 20 NETSTAT.EXE 16->20         started        signatures9 process10 signatures11 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c079b62cce0d0718c3b1f26c3f0f359a7df94acf7e75aea710979fe338ea1f4f/
Threat name:
Win32.Trojan.Strictor
Create hunting rule
Status:
Malicious
First seen:
2021-01-12 06:13:55 UTC
AV detection:
11 of 46 (23.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yb43mlgobudrrq5r6jwd6dzvtj67sswppz225jyqs6p6gohkd5hq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210112-l7cpe6t4j6/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.tokomw.com/wt8z/
Unpacked files
SH256 hash:
c079b62cce0d0718c3b1f26c3f0f359a7df94acf7e75aea710979fe338ea1f4f
MD5 hash:
5c06a1860366ed65d2baba0844342b5e
SHA1 hash:
0f75372b3010b9c9b70776ec6a0c1db85f6332ed
Link:
https://www.unpac.me/results/217cf21b-23de-499f-8b3d-ea569b7217f7/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/217cf21b-23de-499f-8b3d-ea569b7217f7/
SH256 hash:
3c29e62a85ee0ec5bc1bcf0168ffa1d31d3e2b0951aaf8db7cf516b09c923f04
MD5 hash:
a8e479584c4ca96425b88481ced008f8
SHA1 hash:
6913abbf92b48ce6161aaf236ec5f88a2af59811
Link:
https://www.unpac.me/results/217cf21b-23de-499f-8b3d-ea569b7217f7/
SH256 hash:
c29b3ca19f371f7c0bbe0d3069eef3c7af1b11e7af836bf417dacd8c3074f6ce
MD5 hash:
d3a62b8f83bd99d3423e0db7bdb7e1b8
SHA1 hash:
3824ccacab2736e215da54a0f3b401f0123fd973
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/217cf21b-23de-499f-8b3d-ea569b7217f7/
Parent samples :
cb9e52fd5d9184843d3d0a1b79e604e1c19be1a09df19c2f444632d716c30e9e
c079b62cce0d0718c3b1f26c3f0f359a7df94acf7e75aea710979fe338ea1f4f
011e18466a15d6a18399caac2f3317b86ae944699f0ef8b332e9995b47767a6f
99a42bd8c8cfb6b3b69162c2f3f657b3b3972dd353338ff17accb1c9afcd5892
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/c079b62cce0d0718c3b1f26c3f0f359a7df94acf7e75aea710979fe338ea1f4f

File information

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

Malspam

Formbook

zip be2b43b19919ec7d8e74f3198bb7ee8d87abe5ec1d2b8ab60086c3dc7b3f3135

Formbook

Executable exe c079b62cce0d0718c3b1f26c3f0f359a7df94acf7e75aea710979fe338ea1f4f

(this sample)

  
Dropped by
MD5 baa88a82a2f4d792577dce19837b8aa8
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/111435/
  
Dropped by
SHA256 be2b43b19919ec7d8e74f3198bb7ee8d87abe5ec1d2b8ab60086c3dc7b3f3135

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