MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1619d4c36e975b2cc880b6a72db99282df847ebb72dc6446950dbcbf4d0f487. 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
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SHA256 hash: f1619d4c36e975b2cc880b6a72db99282df847ebb72dc6446950dbcbf4d0f487
SHA3-384 hash: 1ea8cd1489e85b1ed5faf230bb9942b9fb942545f8d45cd3c59d7bfb65a1d60ebacc109963c54e654691696cf2136473
SHA1 hash: a5415e363e44e6586ed8f36a73ce2eb5bf4ed4fd
MD5 hash: 991d571971fc0fe01211ef089fa905cc
humanhash: happy-eleven-idaho-low
File name:po-1.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:875'008 bytes
First seen:2021-09-06 12:56:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:o3wW9CUi0CFN0Nipdc6+MqjJqypGpdu1s79+/xtaj7U3yOC2wmiaYFY+7G+169k:uwW40CoNiHQjHUdum79AYjjOXsp7W
Threatray 9'012 similar samples on MalwareBazaar
TLSH T15D15E0147B90FA0FC17F4F3A88915440ABF9E656570BF3877CC216ED098B3AA561B329
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
263
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
po-1.exe
Verdict:
Malicious activity
Analysis date:
2021-09-06 13:24:37 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/77ed53f9-4bd2-43b4-aa33-b76457f4425d

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/185680/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1017.2626.30671.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
DNS request
Connection attempt
Sending an HTTP GET request
Unauthorized injection to a system process
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6ec5d8e2-f50d-4eb2-ba35-539e68f24e18
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846014
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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)
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
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 478447 Sample: po-1.exe Startdate: 06/09/2021 Architecture: WINDOWS Score: 100 31 www.smartneckrelax.com 2->31 33 www.chongzhi365.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 6 other signatures 2->47 11 po-1.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\po-1.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 po-1.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 caraccidentlawyernearme.net 162.241.210.78, 49721, 80 UNIFIEDLAYER-AS-1US United States 18->35 37 borderless-farm.com 122.219.45.146, 49716, 80 UCOMARTERIANetworksCorporationJP Japan 18->37 39 10 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 cmmon32.exe 18->22         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/f1619d4c36e975b2cc880b6a72db99282df847ebb72dc6446950dbcbf4d0f487/
Threat name:
Win32.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2021-09-03 03:52:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
27 of 43 (62.79%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6fqz2tbw5f23fteibnvhfw4zfaw7qr7lw4w4mrdjkdn4x5gq6sdq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2cb7c7c1cb918607912be236d42152a8f9d5347cabf4e815940f2b85c5d9f026
Formbook
3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80
Formbook
837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f
Formbook
9d5847197dc6764bc3ef98ab27c48b41b156f64da2a26798b2f3814682ce4a4d
Formbook
e182055e80f1d8a84eab0f3738276043d0c95bcd50492dcc3c711bde472cd1af
Formbook
f621e1b5cd41932d5afac294e228f4f62b056ef322103c8ec06b9123a4eac2d0
Formbook
+ 9'002 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:k8b5 loader rat suricata
Link:
https://tria.ge/reports/210906-p6zblsecgk/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
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/489e62ab-339c-4d57-b0db-c2802dbff280/
Parent samples :
837d5ed2867ffbf6b718264ecc27e620ffd9d14b1a4d2255f56b04181713830f
2cb7c7c1cb918607912be236d42152a8f9d5347cabf4e815940f2b85c5d9f026
3085d62628657edccc65a18edda86f253fb86712a4e50b1cf67828bfa2d33e80
f621e1b5cd41932d5afac294e228f4f62b056ef322103c8ec06b9123a4eac2d0
e182055e80f1d8a84eab0f3738276043d0c95bcd50492dcc3c711bde472cd1af
cb410693d5e96ef42263250f76d0d16925e54620e350a5faf6053b49a14a07e1
f1619d4c36e975b2cc880b6a72db99282df847ebb72dc6446950dbcbf4d0f487
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/489e62ab-339c-4d57-b0db-c2802dbff280/
SH256 hash:
4af273e9478097907c2c7625cb813469ef8a448f10f81d131cfce45b37fb1103
MD5 hash:
f0c05712d0476ecff119a03b8edda1d3
SHA1 hash:
4e0c0e4d1c82304610b1b81d8b5a875eeccc7a8e
Link:
https://www.unpac.me/results/489e62ab-339c-4d57-b0db-c2802dbff280/
SH256 hash:
f1619d4c36e975b2cc880b6a72db99282df847ebb72dc6446950dbcbf4d0f487
MD5 hash:
991d571971fc0fe01211ef089fa905cc
SHA1 hash:
a5415e363e44e6586ed8f36a73ce2eb5bf4ed4fd
Link:
https://www.unpac.me/results/489e62ab-339c-4d57-b0db-c2802dbff280/
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/f1619d4c36e975b2cc880b6a72db99282df847ebb72dc6446950dbcbf4d0f487

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
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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/185680/

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