MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1baef0cf759d0e9532434bdfff963ed757c1a9391c8e2f0ecb9bc9a0a358713a. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1baef0cf759d0e9532434bdfff963ed757c1a9391c8e2f0ecb9bc9a0a358713a
SHA3-384 hash: adc8c91dce133fc3f20a96b30c14d296d5038089a5abcbd606ec1c0136fe7f7048024aed4c77f38d06fae2173010b55e
SHA1 hash: 66bb9bc1e45338bdc8c88d29fded369251c4c2f7
MD5 hash: 64aa139c3fec57b14726397f0602948a
humanhash: wolfram-ink-quebec-michigan
File name:revised BL.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:674'304 bytes
First seen:2022-03-14 07:18:41 UTC
Last seen:2022-03-14 11:52:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:FJNfZ7DKrb32iNABeRpeSQIvRy/GEs0l34xYoPRCMN8VuJvPjLc1KPZU1BTIZOwP:3jE1CARLCMs2XjLcGUi
Threatray 14'144 similar samples on MalwareBazaar
TLSH T1ABE47CAC326075DFC86BCA728E641C68EFA0747B830F9217901316AD996C99BCF145F3
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/249962/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20220314-0505.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Creating a window
Launching a process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/622eec6db94fb38cb47833ca/reports/ef4ce8e1-7d15-413b-9c48-a08f0cceeab0/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/55bd4204-0aaf-4a6a-a815-f0eced49e172
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/955838
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1baef0cf759d0e9532434bdfff963ed757c1a9391c8e2f0ecb9bc9a0a358713a/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-03-14 02:03:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 27 (77.78%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=doxpbt3vtuhjkmsdjpp77fr625l4dkjzdshc6dwltpe2bi2yoe5a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1aa89074af39244a69ae04905a4f959cb59d567abbbb7ab76407c2fa34a8f59b
Formbook
1db0c14308c42fd03886fdef546388f61558e612fce7f7043c28c822ac0c9b5e
Formbook
2a5fecaa7aa29ffedca8d999e1868afef3a14ca955248b617d3445ea239186e4
Formbook
4083d4907b0926bbea1b80c0dd047d1e6c835dc259f9e698c4cfb7f2218b77d3
Formbook
6b765d70d97e0b3d8da0d871555d9d284bd08e85034ad45447bde1aadd2b2878
Formbook
e183423e51a5a8a73fd0c6743817e57d18ac7d97585b91c3b8f278deef2fd106
Formbook
+ 14'134 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:p9iu loader rat suricata
Link:
https://tria.ge/reports/220314-h5h5nsfgal/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f62337ea6665253175f069f685489aa1a40a90899aca6a7e3e7715fab271dcbf
MD5 hash:
b781e4fc1481a642ce5bd1d7b751a6ba
SHA1 hash:
0f66293f105835d1c03cd0f8bf8716dbe5447de5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/fa708daf-cafe-4956-96a2-c690b85b65dc/
Parent samples :
1baef0cf759d0e9532434bdfff963ed757c1a9391c8e2f0ecb9bc9a0a358713a
7b7a79d27d21d89be6a1faae7b389f924b5a8a5e016924c3ec6f792c9b65defa
ea816c6cab43420b789f780a35e40db03db4c63769122cc2ae2bd3955f6f9938
2217ef18ea04be3cbd80595523b4a6c615107fd51f10ea20193e523fe4a8f09c
78a9216db715b198385760e65ac791c8b535b0d29814cce5eee6445812983853
74bd214d5c0297a656ca3f58329d1c885cddefcc3f8c40fc81053fc4f4c0d48f
bdfe2908b1cc8e3956a0bfa91570cda9ee128dd9baa74d019f2a8f969e92a9a3
442bf2cd75806ec60778072cede6f0185014b1ed89966e59b6cd573010b16f46
2a67d2c8fd0dffa42203470db9d342b69f28fb0566232f4c19b33f18ddcff23c
fe9e68e703fa211b73e5bf707c018013566daa9566d1b20b888070b2e7caa1a9
SH256 hash:
2d75669d084b99942bcedf59f41baff65c4cebf09c28451672caf467dffd367e
MD5 hash:
97bf905bbfc7cdeda4c2fbe7caeb3886
SHA1 hash:
47770b42d2f4bc515449369073f46340af89b2bf
Link:
https://www.unpac.me/results/fa708daf-cafe-4956-96a2-c690b85b65dc/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/fa708daf-cafe-4956-96a2-c690b85b65dc/
SH256 hash:
1baef0cf759d0e9532434bdfff963ed757c1a9391c8e2f0ecb9bc9a0a358713a
MD5 hash:
64aa139c3fec57b14726397f0602948a
SHA1 hash:
66bb9bc1e45338bdc8c88d29fded369251c4c2f7
Link:
https://www.unpac.me/results/fa708daf-cafe-4956-96a2-c690b85b65dc/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1baef0cf759d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/1baef0cf759d0e9532434bdfff963ed757c1a9391c8e2f0ecb9bc9a0a358713a

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Malspam

Formbook

rar 7ab1adb45891217a9c1bcd25904c75653727fec5d106c89a47fefd32cccf32b1

Formbook

Executable exe 1baef0cf759d0e9532434bdfff963ed757c1a9391c8e2f0ecb9bc9a0a358713a

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 7ab1adb45891217a9c1bcd25904c75653727fec5d106c89a47fefd32cccf32b1
Cape
Cape
https://www.capesandbox.com/analysis/249962/

Comments