MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 636d458bc8171a86d3e762b66600c6060ef6cefcebd0412559024b7b07be8682. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 636d458bc8171a86d3e762b66600c6060ef6cefcebd0412559024b7b07be8682
SHA3-384 hash: 5a35087043e8811a79f2d53bf82d6d47ec4a8009745b074402bc10c7943bf75badf08724aae3b6792b9b31bc43ba4eed
SHA1 hash: 5e10ee08e14ca627a8a206a5eb47bec571f58a2a
MD5 hash: 7ed50328933a517579111cffb21c8e5f
humanhash: march-fish-muppet-summer
File name:636d458bc8171a86d3e762b66600c6060ef6cefcebd0412559024b7b07be8682
Download: download sample
Signature Formbook
Create hunting rule
File size:915'968 bytes
First seen:2022-04-05 10:45:55 UTC
Last seen:2022-04-06 05:35:46 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 24576:41GuyRzAHfdJvYBox3LNQfQG/eJMkQrtbq4:4ICHfrveotB4QMeJM+
Threatray 14'610 similar samples on MalwareBazaar
TLSH T1C215014065A0AB9BC9EBFA74DCBACB204E3E3F11E528CD1F35B1309958D37836452667
File icon (PE):PE icon
dhash icon f0cce27272f2cef0 (6 x Formbook, 3 x NanoCore, 2 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
218
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
636d458bc8171a86d3e762b66600c6060ef6cefcebd0412559024b7b07be8682
Verdict:
Malicious activity
Analysis date:
2022-04-05 10:39:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6b4792e1-0aab-4a58-8a24-4d3b1a6ae5d4

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/260915/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/624c1df6aa7e43c6a6bbb852/reports/6ffd74b8-67de-4b87-ba74-36147ffff2b4/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/35f9589e-b994-48d6-8c60-7b40a7ec27cd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/970756
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
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: 603243 Sample: 9WfM8w15RE Startdate: 05/04/2022 Architecture: WINDOWS Score: 100 31 www.nikoletolios.com 2->31 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus / Scanner detection for submitted sample 2->39 41 7 other signatures 2->41 11 9WfM8w15RE.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\9WfM8w15RE.exe.log, ASCII 11->29 dropped 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Injects a PE file into a foreign processes 11->55 15 9WfM8w15RE.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.spcommodities-insights.com 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 22 systray.exe 18->22         started        signatures11 process12 signatures13 45 Self deletion via cmd delete 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/636d458bc8171a86d3e762b66600c6060ef6cefcebd0412559024b7b07be8682/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-05 08:39:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0d913321824b24f168daf6da5e888c9700fb5ed5e3bc06bd24be670c1a10fcb7
Formbook
6d1ae3278059d592ae7c4426df9456553b8abfbc3bd90ce0f8d1792e94ae95c2
Formbook
8392408d685d10ddf024a7e4f47976e03a00fd787bd4ee0932766c4b9b278bc0
Formbook
bd226a9a2ca1733959a195b2b808bf9183ce5aebdb730afdb31a62ff42817a0b
Formbook
cd76d4063992bb159bf31d7cc4ff6dcb4acbbb2c47b5cd6a1de03e5f60bb5c6e
Formbook
d3173c18c350a7fa99867f3ef7c9bf5375a4e1ca7f5706c60d883cb17322491f
Formbook
d8b05baee601302f22a561d0686689994296a4fa6ce256bcedb9bfa899553c07
Formbook
dfa895fe8d8da53e7f3c0466a7e88aa5d36f1a781675d03b0c7400847a0b4f6b
Formbook
ecc6439ff97e4b77f3af320e4c224f712478610fd28a1b6e6a03573c4b90f405
Formbook
+ 14'600 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:tn73 rat spyware stealer trojan
Link:
https://tria.ge/reports/220405-mtyhfadee8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
5c946e7edc32c639c469c278a913412051f8dc84a48a0c250c4c6c71dc3c2967
MD5 hash:
1db156cd8871bb84ca3d9a6658d10024
SHA1 hash:
5aa49636c1806ee2694223a817ca77277aa3ad3c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/668c799e-a718-4421-998e-24992651fb3a/
SH256 hash:
04883e9fc2ce26dd42f634bbcdd80fe76310ab009b669838a416c37c2c21eca5
MD5 hash:
44a5e0a9a650febb211eb0e35fb73d02
SHA1 hash:
e8df41f349ff69b4c22317dde3b1a32a58627bc3
Link:
https://www.unpac.me/results/668c799e-a718-4421-998e-24992651fb3a/
SH256 hash:
1c0dd3ad1814b24d2ba0b04c73ec260e04f7960998a6650088085d5afb61b112
MD5 hash:
6c8c4de3019b587c0004e0515c08a809
SHA1 hash:
c79ce8442f8211c2b2c902ca1a90837145a2568a
Link:
https://www.unpac.me/results/668c799e-a718-4421-998e-24992651fb3a/
SH256 hash:
71764eb60a83a17343af4a26bf3ec546c5ee08454722233fd5cf59693327b1a4
MD5 hash:
bfcf754fb9acba752f79f44817b7be23
SHA1 hash:
01af19456b6f97790973d0d67a97ecc362ab7aed
Link:
https://www.unpac.me/results/668c799e-a718-4421-998e-24992651fb3a/
SH256 hash:
636d458bc8171a86d3e762b66600c6060ef6cefcebd0412559024b7b07be8682
MD5 hash:
7ed50328933a517579111cffb21c8e5f
SHA1 hash:
5e10ee08e14ca627a8a206a5eb47bec571f58a2a
Link:
https://www.unpac.me/results/668c799e-a718-4421-998e-24992651fb3a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/636d458bc8171a86d3e762b66600c6060ef6cefcebd0412559024b7b07be8682

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: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.

Malspam

Formbook

Executable exe 636d458bc8171a86d3e762b66600c6060ef6cefcebd0412559024b7b07be8682

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/260915/
  
URLhaus
https://urlhaus.abuse.ch/url/2132557/

Comments