MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80
SHA3-384 hash: 7abc3706203d175e03a3846c47050b744fed0cdc8dd8247f770fd05063d17209b755bd0cf8ca3454779427ab67a18234
SHA1 hash: 6097fcf7687e0ec485eae2d57cf9b993ab520375
MD5 hash: 3a91f6caa3965066b881d1de7a67f1b9
humanhash: oxygen-river-one-summer
File name:Invoice pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:696'832 bytes
First seen:2021-08-30 13:51:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:SDnzTkV5gplawjJlNbno7QCGyfVENB+r5XmLXGZEKr042gBHL3Q9I5Oup:4nxawjlnAVfVIBc5XmL2O42gBHDQ9WN
Threatray 8'681 similar samples on MalwareBazaar
TLSH T16EE4FB7F19BDA2279175C6F58BE38827F0108B6F3110696476D347264322A7AB4F336E
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-30 13:52:51 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/11d725a2-f0e2-44ce-9501-4a75c012bfbd

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/183793/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen3.2647.31144.2438.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fc9818f6-1a64-4cc1-b436-275e96f8486c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/841616
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
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
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Process Start Without DLL
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 474063 Sample: Invoice pdf.exe Startdate: 30/08/2021 Architecture: WINDOWS Score: 100 31 www.caraccidentlawyernearme.net 2->31 33 www.brightpet.info 2->33 35 2 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 13 other signatures 2->49 11 Invoice pdf.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\Invoice pdf.exe.log, ASCII 11->29 dropped 63 Injects a PE file into a foreign processes 11->63 15 Invoice pdf.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.scholarshdesk.xyz 72.52.178.23, 49730, 80 LIQUIDWEBUS United States 18->37 39 operacionapoyo.com 192.169.220.85, 49731, 80 AS-26496-GO-DADDY-COM-LLCUS United States 18->39 41 12 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 53 Performs DNS queries to domains with low reputation 18->53 22 rundll32.exe 18->22         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 22->55 57 Modifies the context of a thread in another process (thread injection) 22->57 59 Maps a DLL or memory area into another process 22->59 61 Tries to detect virtualization through RDTSC time measurements 22->61 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/3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80/
Threat name:
ByteCode-MSIL.Trojan.Bulz
Create hunting rule
Status:
Malicious
First seen:
2021-08-30 06:42:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
17 of 46 (36.96%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gcc5mjrimv7nztdfughn3kdpeu73qzysutsqwhhwpaul7iwth2aa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2cb7c7c1cb918607912be236d42152a8f9d5347cabf4e815940f2b85c5d9f026
Formbook
54ab4a1cdce2eb6cac3d05ca5eb317a247a6b5e9164d8c1067f1601953ec8729
Formbook
57c1b561b160ccd8a9ebd612a9b3c46e12ce4dacb63a282de8839951651d8efb
Formbook
660708a7f99d26de87386ca21682b96179f16f2dbc67578a704cb94d78e9848f
Formbook
70e7c5966ac86d48e0519f9b2b34703d2915b603836f4de0be2a2badddd258e7
Formbook
837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f
Formbook
9d5847197dc6764bc3ef98ab27c48b41b156f64da2a26798b2f3814682ce4a4d
Formbook
d2ebab1807dd44bad7b61ac4b53e5d4e8dcdd1daa20d521c778400610fc1a252
Formbook
+ 8'671 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:k8b5 loader rat
Link:
https://tria.ge/reports/210830-3cf7mf8pk2/
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
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.chongzhi365.com/k8b5/
Unpacked files
SH256 hash:
fb2708faaa182dcb378ed514dd3aa8eade73f6ba95b2c1ce3bb050790ea94345
MD5 hash:
60681cd2406501f4e4342559485cd1ca
SHA1 hash:
4f5b06688f779dbe5a35d93baa7ec38792a16fc2
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/03fff4ad-5013-4645-bc9b-b6693345829d/
Parent samples :
837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f
2cb7c7c1cb918607912be236d42152a8f9d5347cabf4e815940f2b85c5d9f026
3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80
f621e1b5cd41932d5afac294e228f4f62b056ef322103c8ec06b9123a4eac2d0
e182055e80f1d8a84eab0f3738276043d0c95bcd50492dcc3c711bde472cd1af
cb410693d5e96ef42263250f76d0d16925e54620e350a5faf6053b49a14a07e1
f1619d4c36e975b2cc880b6a72db99282df847ebb72dc6446950dbcbf4d0f487
SH256 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/03fff4ad-5013-4645-bc9b-b6693345829d/
SH256 hash:
7180dee6dc7eb5fa221dc28685baa7e0703e150647de546a9c74c6f5bd499bfb
MD5 hash:
a4c508c863bbd90ae782f4ea245a571f
SHA1 hash:
68a9e690627eed09e7c856efb9078319ecfba983
Link:
https://www.unpac.me/results/03fff4ad-5013-4645-bc9b-b6693345829d/
SH256 hash:
3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80
MD5 hash:
3a91f6caa3965066b881d1de7a67f1b9
SHA1 hash:
6097fcf7687e0ec485eae2d57cf9b993ab520375
Link:
https://www.unpac.me/results/03fff4ad-5013-4645-bc9b-b6693345829d/
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/3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80

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/183793/

Comments