MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f0537b93c3ac221e4efe9d5835845b4930529890472272b0b0f8db2bf1d4ca5b. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f0537b93c3ac221e4efe9d5835845b4930529890472272b0b0f8db2bf1d4ca5b
SHA3-384 hash: 4201b8257baf033311d21c8355dae09c1a3f0dea0220042c37470f43474990c643a9ed687960e143886d1c8a54a8b712
SHA1 hash: a0aa396c2a1e4f855793a7ce9d0dfc765f0345fd
MD5 hash: a6dc10d7c082142c47aea5e53463af8b
humanhash: blue-summer-sodium-aspen
File name:a6dc10d7c082142c47aea5e53463af8b
Download: download sample
Signature Formbook
Create hunting rule
File size:423'936 bytes
First seen:2021-10-07 08:58:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:oqcdYptHeQ+3HwOasz51QAoa4YA5tf/H1QRc6YAuww4PNKgtp27Yd0iJuBStqvi1:ozYpFnodz51QXa16GRKWP7Dd4BStqK
Threatray 10'048 similar samples on MalwareBazaar
TLSH T1E494E17A36A3CD00DE7046BAEDDDC15243BDB8423169C77A2A8D727D69223F44DD06CA
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
140
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CV 10-06-2021.xlsx
Verdict:
Malicious activity
Analysis date:
2021-10-07 07:39:59 UTC
Tags:
encrypted exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/2bd5a008-ad0e-461d-82e9-595c7ba3a9c2

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/195724/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.935-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615eb6dbb95458900cddf60a/reports/f25f4ea1-6391-4581-8c94-c6830b7065bc/overview
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/866311
Signature
Antivirus detection for URL or domain
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 498740 Sample: KZJgRYREQC Startdate: 07/10/2021 Architecture: WINDOWS Score: 100 29 www.moms4real.com 2->29 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 6 other signatures 2->53 10 KZJgRYREQC.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\KZJgRYREQC.exe.log, ASCII 10->27 dropped 55 Tries to detect virtualization through RDTSC time measurements 10->55 14 KZJgRYREQC.exe 10->14         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 14->57 59 Maps a DLL or memory area into another process 14->59 61 Sample uses process hollowing technique 14->61 63 Queues an APC in another process (thread injection) 14->63 17 help.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 37 Self deletion via cmd delete 17->37 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Tries to detect virtualization through RDTSC time measurements 17->43 23 cmd.exe 1 17->23         started        31 www.craftsbylarissa.com 136.144.219.158, 49841, 80 TRANSIP-ASAmsterdamtheNetherlandsNL Netherlands 20->31 33 www.asmrfans.com 185.7.99.239, 49840, 80 MOJHOST-EUNL Netherlands 20->33 35 14 other IPs or domains 20->35 45 System process connects to network (likely due to code injection or exploit) 20->45 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f0537b93c3ac221e4efe9d5835845b4930529890472272b0b0f8db2bf1d4ca5b/
Threat name:
Win32.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-10-07 08:59:10 UTC
AV detection:
15 of 42 (35.71%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2728dc98fdebc00823b877eba49ace782c17db8a07074634aafca9dc00277776
Formbook
4633bc441c059884886be83a8733f355d933b58db80f81c0a56404bceadf9667
Formbook
591f1f8b00c0eb6b24da2646904aabaf9ee6e6dcc735cf533bb4c1ccdf9e1f60
Formbook
73db754f5e709731e9c07c230fa6512ee75e07184c367e3f80b1bf646e7b72da
Formbook
9fd253b8d45e4204580e7277bb43bdf115b796a722ecc7afc20cad8c75dc3d60
Formbook
a4c0f021f7b7e196e3a5d8e324cb4084c14941c94d2aab667eb886464948b44a
Formbook
c18d5baf727358a8635a51fc7cfb4c3f4c90c78abcecf051feb4540323e98746
Formbook
cd2eaa79448009041ecc926c273b4d483bccaf7c2cd39624082c3e13d55408a1
Formbook
dcfd181e8143ae4b31ae3d289b57113fdc67449735acd5d459a358766f401035
Formbook
eafdeb6ac0b1bd6f065c70b3b2892bf04c6d5d674751e64b7583ba13ddf6ebd5
Formbook
+ 10'038 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:shjn loader rat
Link:
https://tria.ge/reports/211007-kxrsyscah3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.anamentor.com/shjn/
Unpacked files
SH256 hash:
b25dbf764b25a981f832938b6009d9a5652a61514e6781894fe2349b8057096a
MD5 hash:
8eb4e927a9446627f66a5ca01c6b7e5f
SHA1 hash:
b2296998b3d6bc3346481f808e069c37566e5a0f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c0779845-ee72-424e-9023-7dcbd858b011/
Parent samples :
4633bc441c059884886be83a8733f355d933b58db80f81c0a56404bceadf9667
591f1f8b00c0eb6b24da2646904aabaf9ee6e6dcc735cf533bb4c1ccdf9e1f60
f0537b93c3ac221e4efe9d5835845b4930529890472272b0b0f8db2bf1d4ca5b
9fd253b8d45e4204580e7277bb43bdf115b796a722ecc7afc20cad8c75dc3d60
862d9ecd31b3ad9fbdaf4f5c25e2bf5e4abbbb0a922e097a0c0dd69c8acb6ae3
SH256 hash:
fe8637d821a39a8b74abce7e043007d38cb9c5cfcb7098af9846cfd98185ac03
MD5 hash:
c380b6831f456ac5cac08c78c0e4dada
SHA1 hash:
3e241a0b9d96c1dfbadd7ee1a8c5ee6d74eba11c
Link:
https://www.unpac.me/results/c0779845-ee72-424e-9023-7dcbd858b011/
SH256 hash:
cda953084083d6dc5417170837aba4a5085d98d8198608fbeffbdd76b13b4cb1
MD5 hash:
e1b9722567aa3a835efdb85ccf92e759
SHA1 hash:
1b00cf738a0614f3d256fbbc7c5051fdc545eaba
Link:
https://www.unpac.me/results/c0779845-ee72-424e-9023-7dcbd858b011/
SH256 hash:
f0537b93c3ac221e4efe9d5835845b4930529890472272b0b0f8db2bf1d4ca5b
MD5 hash:
a6dc10d7c082142c47aea5e53463af8b
SHA1 hash:
a0aa396c2a1e4f855793a7ce9d0dfc765f0345fd
Link:
https://www.unpac.me/results/c0779845-ee72-424e-9023-7dcbd858b011/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f0537b93c3ac/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/f0537b93c3ac221e4efe9d5835845b4930529890472272b0b0f8db2bf1d4ca5b

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe f0537b93c3ac221e4efe9d5835845b4930529890472272b0b0f8db2bf1d4ca5b

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1659301/
Cape
Cape
https://www.capesandbox.com/analysis/195724/

Comments


Avatar
zbet commented on 2021-10-07 08:58:56 UTC

url : hxxp://3.123.20.242/www1/wap.exe