MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf6959fe2bb4c2e078a8bb51c097dfd79bc0ca5cd296090a897ecb30a3ee6102. 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: cf6959fe2bb4c2e078a8bb51c097dfd79bc0ca5cd296090a897ecb30a3ee6102
SHA3-384 hash: 5b5eb9167f170b9751929e40e078bba476c05544d52413c1ba427bc8d908fb53530fb9aae30a84628554f2e8660dd9ee
SHA1 hash: 28f6d239e6b4ce3ce2a362e1f5ac5519e6279bf8
MD5 hash: a30321feb78baf3e0d9ee124d90014a1
humanhash: romeo-ink-mike-carpet
File name:MV. XIN YU_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:877'568 bytes
First seen:2021-01-14 06:57:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:O/LtckZe5oNkdKRac3oZTS3877Lc/vE4s:O2wBRP0S3yLn
TLSH 0615E5479804978FE43586B9BE470F6C6F1A3E1DA5C666EF40230D9B7A383724D4E06E
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: vm4983.aproweb.it
Sending IP: 217.64.205.19
From: Peter Xu <ydmarket06@nbydlogistic.com>
Reply-To: ydmarket06@nbydlogistic.com
Subject: MV. XIN YU
Attachment: MV. XIN YU_pdf.rar (contains "MV. XIN YU_pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
133
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MV. XIN YU_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-01-14 07:36:35 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/002b0c92-19f4-42c6-ad1f-a8c2934ca413

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/111945/
Detection(s):
SecuriteInfo.com.Trojan.Siggen11.57608.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/581187
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 339627 Sample: MV. XIN YU_pdf.exe Startdate: 14/01/2021 Architecture: WINDOWS Score: 100 34 www.throughthelorgnette.com 2->34 36 www.purfect-air.com 2->36 38 purfect-air.com 2->38 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 8 other signatures 2->52 11 MV. XIN YU_pdf.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\user\...\MV. XIN YU_pdf.exe.log, ASCII 11->32 dropped 14 MV. XIN YU_pdf.exe 11->14         started        17 MV. XIN YU_pdf.exe 11->17         started        19 MV. XIN YU_pdf.exe 11->19         started        process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 21 explorer.exe 14->21 injected process8 dnsIp9 40 www.youpieb.com 213.247.47.190, 49736, 80 WEBAIR-INTERNETUS Netherlands 21->40 42 dc-prices.com 195.201.17.18, 49735, 80 HETZNER-ASDE Germany 21->42 44 6 other IPs or domains 21->44 54 System process connects to network (likely due to code injection or exploit) 21->54 25 msiexec.exe 21->25         started        signatures10 process11 signatures12 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cf6959fe2bb4c2e078a8bb51c097dfd79bc0ca5cd296090a897ecb30a3ee6102/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-01-14 03:06:35 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z5uvt7rlwtboa6fixni4bf6726n4bss42klascujp3ftbi7omeba._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210114-ccspv2rx2a/
Behaviour
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 UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.huynhanhdung.com/kna/
Unpacked files
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/b1e52f3e-746f-4d1f-8ad5-d141205422ae/
SH256 hash:
fd863b7b60257a6b8d4e0030a24d06366edf9ae97a35368dcb79d30ad87d5274
MD5 hash:
a9d64082cc4dd89bf184e08d88224243
SHA1 hash:
e2324ebecece7d972812ef421f58270b50ed9ddc
Link:
https://www.unpac.me/results/b1e52f3e-746f-4d1f-8ad5-d141205422ae/
SH256 hash:
c61f0ce33d1eab10cd1be24e23a6cbaa3b8d3fab41745e2b9d22ce94d2adfe57
MD5 hash:
279009b35684ebfa3207f1052ad6ec1a
SHA1 hash:
216fe98253bea61028d0a1f686e2600646f2743e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b1e52f3e-746f-4d1f-8ad5-d141205422ae/
Parent samples :
f8a388fc032aa7fdf80ed5bad850e3429ee27614bd6152efaa090fc77ad3bc6a
cf6959fe2bb4c2e078a8bb51c097dfd79bc0ca5cd296090a897ecb30a3ee6102
f777596fe0fa9c11e6ff244810d6c6d4846f9c03b8840ad88ac8853de8a766db
743f890d93b9f2974c3770efbd0c9f07e0a866542d45572ccf47946673b60874
f3ddc95f31cacb29b7ec70b8dd6f0fb5befb759f7044e491b269417e91037d1d
f59df25daa1bbe11f38724ad0b36eebc535f1f36ae3796ce5bebe1049cbb57ed
8bcaa843a3dbd507050d15f193571dfc2a1e584e23a6dea41431067b188ea199
SH256 hash:
cf6959fe2bb4c2e078a8bb51c097dfd79bc0ca5cd296090a897ecb30a3ee6102
MD5 hash:
a30321feb78baf3e0d9ee124d90014a1
SHA1 hash:
28f6d239e6b4ce3ce2a362e1f5ac5519e6279bf8
Link:
https://www.unpac.me/results/b1e52f3e-746f-4d1f-8ad5-d141205422ae/
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/cf6959fe2bb4c2e078a8bb51c097dfd79bc0ca5cd296090a897ecb30a3ee6102

File information

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

Malspam

Formbook

rar a29884a4dccb71feece0794ea7544c7b9ecbeb861cd15b09df5e4f0854edd63a

Formbook

Executable exe cf6959fe2bb4c2e078a8bb51c097dfd79bc0ca5cd296090a897ecb30a3ee6102

(this sample)

  
Dropped by
MD5 d4c541db0e106ad6637b0f5733dc0ae9
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 a29884a4dccb71feece0794ea7544c7b9ecbeb861cd15b09df5e4f0854edd63a
Cape
Cape
https://www.capesandbox.com/analysis/111945/

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