MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2776237004407d8c72906ce72050cda1b0d9abeb20e313abf7a98e6fea03ce8d. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2776237004407d8c72906ce72050cda1b0d9abeb20e313abf7a98e6fea03ce8d
SHA3-384 hash: 68798861484eaf33b8188b1e7393f54e09f17998a2d56c1adaccb2d5499a6be89beb6a7ffe883c66e3f4e5d41efa5856
SHA1 hash: ee97619d2e4a2dcec42a9a184fdead03b3016690
MD5 hash: 49d580ed801dcd3c12a2bf56e82a3baa
humanhash: quiet-lake-gee-beryllium
File name:obizx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:416'768 bytes
First seen:2021-10-20 16:40:54 UTC
Last seen:2021-10-20 20:18:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:xBe5VXG0w1PlpP+b84V4rdDfcEge7fU06gaOjmNBCbz3tm7D5c4kP9MKs/Knf9M:xETGjpibmrlxgeUgaNTQQ7VcxMKDf9
Threatray 10'701 similar samples on MalwareBazaar
TLSH T10C94F02636A9DE11C2AD477ACCDE150403B9F8467922DB1E3DC933EE48867F20915F9E
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/198879/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.29063.16002.22572.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:
80%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/617046a1a9d585e6d52f8ccd/reports/4aa91bed-c8a6-4d34-bb78-96264c55c4ba/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/25e94bd3-0500-4928-92b0-7824c0efcddc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/874047
Signature
.NET source code contains potential unpacker
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 signatures2 2 Behavior Graph ID: 506474 Sample: obizx.exe Startdate: 20/10/2021 Architecture: WINDOWS Score: 100 30 Found malware configuration 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Yara detected AntiVM3 2->34 36 5 other signatures 2->36 10 obizx.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\obizx.exe.log, ASCII 10->28 dropped 42 Tries to detect virtualization through RDTSC time measurements 10->42 14 obizx.exe 10->14         started        17 obizx.exe 10->17         started        signatures5 process6 signatures7 44 Modifies the context of a thread in another process (thread injection) 14->44 46 Maps a DLL or memory area into another process 14->46 48 Sample uses process hollowing technique 14->48 50 Queues an APC in another process (thread injection) 14->50 19 explorer.exe 14->19 injected process8 process9 21 control.exe 19->21         started        signatures10 38 Self deletion via cmd delete 21->38 40 Tries to detect virtualization through RDTSC time measurements 21->40 24 cmd.exe 1 21->24         started        process11 process12 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2776237004407d8c72906ce72050cda1b0d9abeb20e313abf7a98e6fea03ce8d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-20 16:40:25 UTC
AV detection:
15 of 43 (34.88%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e53cg4aeib6yy4uqnttsaugnugyntk7ledrrhk7xvghg72qdz2gq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5cbb6ffeafe0a54df3243d3c730168b51e8cf6750cf9355b164c2dd554af609e
Formbook
6bb763ffd1ca484344f2a02df3f9e6bddc18a0f1fcd5d58002ad16b82b36db90
Formbook
b0cfa1848c7b08eb881e615731493df57963468fa3fb461ebf1468271dd17a14
Formbook
c32b5b1c2a90a6a38f7dc2dcb4541c111fa1ddc39eab5f0173205aa4079cbc5e
Formbook
dfbb8dc13848a4763fddee0be94415ef938755656c54e3f151995e2d50f251dc
Formbook
eb39b7952714c4a7c7fbfc68a077ef0a2dd31c24da35078da08bcfc0b1e2ff32
Formbook
ff64ff314c7947e5faae8181ac818b124a6d17d0fc3a66e8777a78a613d6093c
Formbook
+ 10'691 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fkt8 rat spyware stealer trojan
Link:
https://tria.ge/reports/211020-t64njshch9/
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.grampianscottages.com/fkt8/
Unpacked files
SH256 hash:
135c9f3c8f8092d70cec25ed29f7b1666846d088d0ff91fa2625928207133c99
MD5 hash:
8c9e4251ca98659375a95984eeeaddfc
SHA1 hash:
a00deb7a98ebc35e52c828a350ebbfd4c21edc34
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bf6777fd-1fd1-4b1d-8219-c192a4041870/
Parent samples :
eb39b7952714c4a7c7fbfc68a077ef0a2dd31c24da35078da08bcfc0b1e2ff32
5cbb6ffeafe0a54df3243d3c730168b51e8cf6750cf9355b164c2dd554af609e
ff64ff314c7947e5faae8181ac818b124a6d17d0fc3a66e8777a78a613d6093c
dfbb8dc13848a4763fddee0be94415ef938755656c54e3f151995e2d50f251dc
c32b5b1c2a90a6a38f7dc2dcb4541c111fa1ddc39eab5f0173205aa4079cbc5e
2776237004407d8c72906ce72050cda1b0d9abeb20e313abf7a98e6fea03ce8d
SH256 hash:
e159da9cf536328c1d4b359cbfc4aadad6041a6fe496733e2f71f9cd249e62fd
MD5 hash:
47dac503f29bfb4da3b2e1382d1269a6
SHA1 hash:
80790fe14715a8d248fa7dd2c5c5a6b3b91e7622
Link:
https://www.unpac.me/results/bf6777fd-1fd1-4b1d-8219-c192a4041870/
SH256 hash:
6fee24a1398bb022d0c5b9059b9b21e7636fc3861866a583d0e49b7d0ca56d58
MD5 hash:
36e2528c3cb3ad299ea481283687cdd6
SHA1 hash:
1981340bc7be1aa8f78f942fc6f0724838e35a87
Link:
https://www.unpac.me/results/bf6777fd-1fd1-4b1d-8219-c192a4041870/
SH256 hash:
2776237004407d8c72906ce72050cda1b0d9abeb20e313abf7a98e6fea03ce8d
MD5 hash:
49d580ed801dcd3c12a2bf56e82a3baa
SHA1 hash:
ee97619d2e4a2dcec42a9a184fdead03b3016690
Link:
https://www.unpac.me/results/bf6777fd-1fd1-4b1d-8219-c192a4041870/
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/2776237004407d8c72906ce72050cda1b0d9abeb20e313abf7a98e6fea03ce8d

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/198879/
  
URLhaus
https://urlhaus.abuse.ch/url/1700327/

Comments