MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7f3f82532b326a3369f9c15b84620d40b835178cc46fab2dec9c5f2d2220099c. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7f3f82532b326a3369f9c15b84620d40b835178cc46fab2dec9c5f2d2220099c
SHA3-384 hash: 9371e2bcdd5914636fdd249d8ea08c6a18a5c10969bcba82c0ebb638144c943ed544c4a8ff46615a48fd021c1611e0e7
SHA1 hash: e9c186f91ca4ffbcca2e06fcb551b185d6cf6ebf
MD5 hash: f5dd75dff7af606ddb23acee9872b6b2
humanhash: speaker-october-eight-muppet
File name:f5dd75dff7af606ddb23acee9872b6b2
Download: download sample
Signature Formbook
Create hunting rule
File size:637'440 bytes
First seen:2021-08-18 09:15:37 UTC
Last seen:2021-08-18 11:46:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9d9efc27a44fcb7cf802b6cba10d2531 (4 x RemcosRAT, 2 x Formbook)
ssdeep 12288:TKM0u78KU0wzWwGj6ZXwz7ZucoqO55Pm6:TQeU04W8gz78+U
Threatray 7'121 similar samples on MalwareBazaar
TLSH T1C0D4AF62F1E2A07BD07306BC799BABAC7D28BEF42C38549756EC4C495F386B0661C147
dhash icon 88c7ce3cbddc2f31 (24 x RemcosRAT, 12 x Formbook, 8 x Loki)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Wire-Confirmation.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-18 08:18:51 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/204a9d0d-7b51-4bff-870c-ff47070f0911

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/180262/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware2.15878.4337.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Sending a UDP request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
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/c15ef5d9-df17-40d4-9aa8-a9b23f6e44c5
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/834977
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Creates an undocumented autostart registry key
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Execution from Suspicious Folder
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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 467408 Sample: mjPlrso9rX Startdate: 18/08/2021 Architecture: WINDOWS Score: 100 55 www.mobiessence.com 2->55 57 www.e-bizbox.com 2->57 59 e-bizbox.com 2->59 91 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->91 93 Malicious sample detected (through community Yara rule) 2->93 95 Multi AV Scanner detection for submitted file 2->95 97 4 other signatures 2->97 10 mjPlrso9rX.exe 1 22 2->10         started        signatures3 process4 dnsIp5 79 sn-files.fe.1drv.com 10->79 81 onedrive.live.com 10->81 83 dkyyda.sn.files.1drv.com 10->83 53 C:\Users\Public\Libraries\...\Cvieuwq.exe, PE32 10->53 dropped 123 Writes to foreign memory regions 10->123 125 Creates a thread in another existing process (thread injection) 10->125 127 Injects a PE file into a foreign processes 10->127 15 ieinstal.exe 10->15         started        18 cmd.exe 1 10->18         started        20 cmd.exe 1 10->20         started        file6 signatures7 process8 signatures9 129 Modifies the context of a thread in another process (thread injection) 15->129 131 Maps a DLL or memory area into another process 15->131 133 Sample uses process hollowing technique 15->133 135 Queues an APC in another process (thread injection) 15->135 22 explorer.exe 4 2 15->22 injected 26 WWAHost.exe 15->26         started        28 reg.exe 1 18->28         started        30 conhost.exe 18->30         started        32 cmd.exe 1 20->32         started        34 conhost.exe 20->34         started        process10 dnsIp11 73 ghs.google.com 142.250.185.147, 49750, 80 GOOGLEUS United States 22->73 75 www.miamiqueensdress.com 75.2.115.196, 49749, 80 AMAZON-02US United States 22->75 77 www.bagyat.com 22->77 119 System process connects to network (likely due to code injection or exploit) 22->119 36 Cvieuwq.exe 15 22->36         started        40 Cvieuwq.exe 15 22->40         started        42 colorcpl.exe 1 22->42         started        121 Tries to detect virtualization through RDTSC time measurements 26->121 44 conhost.exe 28->44         started        46 conhost.exe 32->46         started        signatures12 process13 dnsIp14 61 sn-files.fe.1drv.com 36->61 63 onedrive.live.com 36->63 65 dkyyda.sn.files.1drv.com 36->65 99 Multi AV Scanner detection for dropped file 36->99 101 Machine Learning detection for dropped file 36->101 103 Writes to foreign memory regions 36->103 48 ieinstal.exe 36->48         started        67 sn-files.fe.1drv.com 40->67 69 onedrive.live.com 40->69 71 dkyyda.sn.files.1drv.com 40->71 105 Allocates memory in foreign processes 40->105 107 Creates a thread in another existing process (thread injection) 40->107 109 Injects a PE file into a foreign processes 40->109 51 ieinstal.exe 40->51         started        111 Creates an undocumented autostart registry key 42->111 113 Modifies the context of a thread in another process (thread injection) 42->113 115 Maps a DLL or memory area into another process 42->115 117 Tries to detect virtualization through RDTSC time measurements 42->117 signatures15 process16 signatures17 85 Modifies the context of a thread in another process (thread injection) 48->85 87 Maps a DLL or memory area into another process 48->87 89 Sample uses process hollowing technique 48->89
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7f3f82532b326a3369f9c15b84620d40b835178cc46fab2dec9c5f2d2220099c/
Threat name:
Win32.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-08-18 09:16:07 UTC
AV detection:
16 of 46 (34.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p47yeuzlgjvdg2pzyfnyiyqnic4dkf4myrx2wlpmtrps2irabgoa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22bd5ba035c9dcdda222f812537d8b49241b50c55042fd3b902ca8b36d17a398
Formbook
6b1c4ecf03e71ee2c00deb9b82e805b16adaf5e01691f7d3fd1a972087c7481a
Formbook
7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3
Formbook
b9c410e6c86baf7f355d2045a0fd5e3080f3a2ca9afbd319bd1c42485c22b9a8
Formbook
c75eff07a3519dee7ab981166c1b6ff851d1e826e3ef5f0e36250b5983e3095c
Formbook
d30f6c3814efbb4b2e5d9ae0f5d09a4a7ba04cc8a3456590d64cf9bfed279901
Formbook
e6bd5f8475731bcca5f6b74327a68ee4b7fa5b0662521feff1d92424da149151
Formbook
+ 7'111 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:6mam loader persistence rat
Link:
https://tria.ge/reports/210818-fnyq9mtc72/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Blocklisted process makes network request
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.mobiessence.com/6mam/
Unpacked files
SH256 hash:
795b2b5d6668147d7924ac96f90741ddc2a2b5003f455fb842b613a286fbf8fc
MD5 hash:
53011b69a7231aea23d66805a681144b
SHA1 hash:
e3d0d157e763c865e79ccc5bedc2fd5fd90413f7
Link:
https://www.unpac.me/results/916e7d2c-82c6-4a60-b1ef-c44f905f56b1/
SH256 hash:
17f2fb320aad406c38351e9b0752d269895755b78b630b9432860723df04f96c
MD5 hash:
1c9c548c914db4576f2c90df0b12395d
SHA1 hash:
64a01526e5f4464becd88b50327af0585c4b2961
Link:
https://www.unpac.me/results/916e7d2c-82c6-4a60-b1ef-c44f905f56b1/
SH256 hash:
7f3f82532b326a3369f9c15b84620d40b835178cc46fab2dec9c5f2d2220099c
MD5 hash:
f5dd75dff7af606ddb23acee9872b6b2
SHA1 hash:
e9c186f91ca4ffbcca2e06fcb551b185d6cf6ebf
Link:
https://www.unpac.me/results/916e7d2c-82c6-4a60-b1ef-c44f905f56b1/
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/7f3f82532b326a3369f9c15b84620d40b835178cc46fab2dec9c5f2d2220099c

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EnvVarScheduledTasks
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
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:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe 7f3f82532b326a3369f9c15b84620d40b835178cc46fab2dec9c5f2d2220099c

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1543885/
Cape
Cape
https://www.capesandbox.com/analysis/180262/

Comments


Avatar
zbet commented on 2021-08-18 09:15:38 UTC

url : hxxp://198.12.107.114/hdfc/vbc.exe