MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b471dd59083c74c76dbeea385cb1c9385df79815dda3ee12fbaa3177c4f36736. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b471dd59083c74c76dbeea385cb1c9385df79815dda3ee12fbaa3177c4f36736
SHA3-384 hash: 32da4e2e5d58e31eeab43ca48bc01c1d9025c889053636bfee39ba31a379e1ea6804d876c759fff2130726e9072d14b5
SHA1 hash: 69ab991cf784306ccebc07fcab1996f4dde0f1c3
MD5 hash: f761888527b50792a7cf0bdb378bd42c
humanhash: single-butter-orange-kilo
File name:f761888527b50792a7cf0bdb378bd42c
Download: download sample
Signature Formbook
Create hunting rule
File size:440'324 bytes
First seen:2022-04-14 11:24:38 UTC
Last seen:2022-04-14 11:25:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3abe302b6d9a1256e6a915429af4ffd2 (271 x GuLoader, 38 x Formbook, 25 x Loki)
ssdeep 6144:Ije1NmsPUfVaS8q014lemiOwr3A/1Vu+kEfutqtL1tzk1APFFzrKFTsWzi7ji444:Jfo24rczArkPt6BHQT5zCyWlawv8O1
Threatray 12'209 similar samples on MalwareBazaar
TLSH T17E94E0AA72D4F2B8D801C4F2328151A35FA9F953AB8A75625306F73F94F50B4AB0F315
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon c49a9eb6b692e2dc (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
280
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Project SPecs.xlsx
Verdict:
Malicious activity
Analysis date:
2022-04-13 14:44:20 UTC
Tags:
encrypted trojan opendir exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/102fb0ba-c34e-4491-950a-631250ace62a

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/263691/
Detection(s):
Win.Trojan.Injectorx-9944056-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/13856/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/625804d0482f2f41caada7f4/reports/935ac94f-76e7-423a-bd57-dd3d5cff6bd1/overview
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/6f007b22-7512-41db-b027-1e44fa7a5539
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/976788
Signature
C2 URLs / IPs found in malware configuration
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)
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 609279 Sample: JIFmJNc09D Startdate: 14/04/2022 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 3 other signatures 2->49 11 JIFmJNc09D.exe 18 2->11         started        process3 file4 33 C:\Users\user\AppData\Local\...\nzxfbrpm.exe, PE32 11->33 dropped 14 nzxfbrpm.exe 1 11->14         started        process5 signatures6 57 Multi AV Scanner detection for dropped file 14->57 59 Tries to detect virtualization through RDTSC time measurements 14->59 17 nzxfbrpm.exe 14->17         started        20 conhost.exe 14->20         started        process7 signatures8 35 Modifies the context of a thread in another process (thread injection) 17->35 37 Maps a DLL or memory area into another process 17->37 39 Sample uses process hollowing technique 17->39 41 Queues an APC in another process (thread injection) 17->41 22 explorer.exe 17->22 injected process9 process10 24 colorcpl.exe 22->24         started        signatures11 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        29 explorer.exe 1 150 24->29         started        process12 process13 31 conhost.exe 27->31         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/b471dd59083c74c76dbeea385cb1c9385df79815dda3ee12fbaa3177c4f36736/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-04-13 13:18:19 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wry52wiihr2mo3n65i4fzmojhbo7pgav3wr64ex3viyxprhtm43a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0a20250dd45ed290bfdae84a7d120f825a98430c4b1aa8fb1dfe5d10ecaaa9d7
Formbook
1190df73979f3dc768713f51fcf6e2eb439b95caf7c4a2b998c377ea5a35e9d5
Formbook
5f8d69976e4d3c9b6508cd376dcab4971a605d8d1122952ad604f7b48d2ef1e1
Formbook
75b2135da8f94b2601c6758aba7bfba10907e85ec7d98852b74442c21d8b3b16
Formbook
9ce921a63fb3b7e2f35d9ed00b05bd7037f2ca4c5a41ab6c57e98a52acf10402
Formbook
9dab650fff19cfd4e69f5397d686bac4ba6ea24f76b75d3828f9a4a54a3de53b
Formbook
aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d
Formbook
+ 12'199 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:hpe8 loader rat
Link:
https://tria.ge/reports/220414-nh98jahgh7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
Unpacked files
SH256 hash:
828fdd77f6ccdd5b2169990d0f3114403122edf38347256bbee66641eaf3994a
MD5 hash:
0a4cb5f45587bc370804b2585e0544b1
SHA1 hash:
9742181009b119e8ed4210e07802c297e4bc752c
Link:
https://www.unpac.me/results/0667ea0d-2e4f-4428-95ab-9116ad36a2a5/
Parent samples :
9dab650fff19cfd4e69f5397d686bac4ba6ea24f76b75d3828f9a4a54a3de53b
09dd60bb5f7eca34b023584fa25a31dbdc80d98cf2399e68f5a192e2a9aa9be7
SH256 hash:
02cd8b502634419c4150361b20c65d4f09e9d124296e291b001f01d60ea5ff9d
MD5 hash:
1426dd4c01e9a78ad1603d3b513a64bb
SHA1 hash:
baf461eb0338550be8f7f696bce2b5c0d8bad22e
Link:
https://www.unpac.me/results/0667ea0d-2e4f-4428-95ab-9116ad36a2a5/
SH256 hash:
b471dd59083c74c76dbeea385cb1c9385df79815dda3ee12fbaa3177c4f36736
MD5 hash:
f761888527b50792a7cf0bdb378bd42c
SHA1 hash:
69ab991cf784306ccebc07fcab1996f4dde0f1c3
Link:
https://www.unpac.me/results/0667ea0d-2e4f-4428-95ab-9116ad36a2a5/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b471dd59083c/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/b471dd59083c74c76dbeea385cb1c9385df79815dda3ee12fbaa3177c4f36736

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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 b471dd59083c74c76dbeea385cb1c9385df79815dda3ee12fbaa3177c4f36736

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2147055/
Cape
Cape
https://www.capesandbox.com/analysis/263691/

Comments


Avatar
zbet commented on 2022-04-14 11:24:40 UTC

url : hxxp://198.23.191.101/780/vbc.exe