MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c46f804f0a1b6899f11e3360a430d67a4bde7c7d677cc718b344753d1318636a. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c46f804f0a1b6899f11e3360a430d67a4bde7c7d677cc718b344753d1318636a
SHA3-384 hash: 41cf7ad1bd22f6df4bb71c03f26076e5bbbdd1effe4b1aa4f5710f8295176d535467c9a3106af1ffd62c956c9478b6f6
SHA1 hash: 4456dc3fce9f45ddd0c4ec8b8c9f0ad0b9e09c5a
MD5 hash: bdc0e4e04cc3bdf5a8ef7c0bd0890c64
humanhash: mars-mars-friend-rugby
File name:Purchase_Order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:640'512 bytes
First seen:2022-04-07 05:50:29 UTC
Last seen:2022-04-07 05:53:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:uocwY2Kkx6xhGDOGl9hKHUI/hY00j4mS:+wYkEQfl9fZp87
Threatray 14'733 similar samples on MalwareBazaar
TLSH T138D4BF02DA111308E5EA2E782F218764475A9D0AFCACF1AFDE99FC467B77DDB100C589
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
276
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Purchase_Order.exe
Verdict:
Malicious activity
Analysis date:
2022-04-07 05:59:51 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/6800a5d3-de9b-4ea2-adcc-fd1ea768e1ba

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/261570/
Detection(s):
SecuriteInfo.com.ArtemisBDC0E4E04CC3.29237.8842.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
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe evasive obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/624e7bc7d53a7479daca8dc9/reports/d126ee19-399c-4a6d-9340-1de1f82e9048/overview
Result
Verdict:
UNKNOWN
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/12568382-cfa2-45ea-9b46-a92396005b32
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/972098
Signature
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
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: 604583 Sample: Purchase_Order.exe Startdate: 07/04/2022 Architecture: WINDOWS Score: 100 31 www.corenpro.com 2->31 33 v1450.d20140093.zhanh.com 2->33 35 3 other IPs or domains 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Yara detected AntiVM3 2->39 41 Yara detected FormBook 2->41 43 5 other signatures 2->43 11 Purchase_Order.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\Purchase_Order.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 Purchase_Order.exe 11->15         started        18 Purchase_Order.exe 11->18         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 20 explorer.exe 15->20 injected process9 process10 22 cmstp.exe 20->22         started        signatures11 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        process12 process13 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c46f804f0a1b6899f11e3360a430d67a4bde7c7d677cc718b344753d1318636a/
Threat name:
ByteCode-MSIL.Trojan.AgenteslaPacker
Create hunting rule
Status:
Malicious
First seen:
2022-04-07 05:51:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yrxyatykdnujt4i6gnqkimgwpjf547d5m56mogftir2t2eyymnva._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
66ed20e609a1c10376f30415f4f2a03aa274fbdaaa12925dcc81ed74bfb7fdfa
Formbook
6a68426f18f239950d5bb0d82223890b44ea10de5a5fa83294457dd3dcdc5068
Formbook
6b765d70d97e0b3d8da0d871555d9d284bd08e85034ad45447bde1aadd2b2878
Formbook
8dce368d13b52cf207fa4139ed76adb6cc547ab99de8c3f6e5a5cbc6e391d26f
Formbook
8fb567155619feef229141bb4a87119700061289822b50e682534a2051c5a4f8
Formbook
bdfe2908b1cc8e3956a0bfa91570cda9ee128dd9baa74d019f2a8f969e92a9a3
Formbook
cdd772fd3c4299298b8e84472d0b2c20531885a77cfad41495d56337c567a88b
Formbook
e3004a946bcf2e7b396a75d00db10dee9dcd0881cc197d9294a171ad3d882349
Formbook
e5f85b9f804c783c4c580dae508a4e2b9455727a3ede511f9b6ead8ca2b91dc8
Formbook
+ 14'723 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ioxf loader rat suricata
Link:
https://tria.ge/reports/220407-gj57mshafp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Blocklisted process makes network request
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
ad53acae071367ed26937b96492c12c2a9f78390eab755a424431b516908a634
MD5 hash:
7a7a0f11b730ba5f5ee0fcfb39f37236
SHA1 hash:
a1709817e2f25f48dafbe63ae1cae130e69e2d1d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/71df03ef-5a6f-4b88-96a9-0dcc0fe1aea6/
Parent samples :
c46f804f0a1b6899f11e3360a430d67a4bde7c7d677cc718b344753d1318636a
94384e9eb5a340cf1d261e7a752e4b7c189857a9815629fe38bfaf7052bd5829
9d6b789a2ad972a6aabefaad543608e0608f6c94b127eceee7b441bace6b7958
fa41d632cd7c8ed80982c6cfa90e964e086ec9c0c78344e76f8f62d9343941d9
343b4b05edd43bc8d86028dd220067dd99d435689cb815812d2db77875166b4d
bb674117be9903b620655b4fbf844c37d14e4d28a66497e2fe70d4f6e9d31682
59c27aa1cff155341b66f050ccec3306700fdfe161f7446b17ae8e956296d0a4
65af000633f7295c3fe288dafd34d42045a99caeef78568ecf0aab2a07036ef3
58b81c217c594f2ecd371e7047ef2af55be55d998cdafeedfdb594918a74dd3a
SH256 hash:
cce921a2d974aaa30dff78e2166207dac6ab345f9b0501f433e63f56bec47171
MD5 hash:
18b8524230de4e7707a965aa45654568
SHA1 hash:
681e4ce9cb82a218b1085f7aabf22613475cc09e
Link:
https://www.unpac.me/results/71df03ef-5a6f-4b88-96a9-0dcc0fe1aea6/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/71df03ef-5a6f-4b88-96a9-0dcc0fe1aea6/
SH256 hash:
c46f804f0a1b6899f11e3360a430d67a4bde7c7d677cc718b344753d1318636a
MD5 hash:
bdc0e4e04cc3bdf5a8ef7c0bd0890c64
SHA1 hash:
4456dc3fce9f45ddd0c4ec8b8c9f0ad0b9e09c5a
Link:
https://www.unpac.me/results/71df03ef-5a6f-4b88-96a9-0dcc0fe1aea6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c46f804f0a1b6899f11e3360a430d67a4bde7c7d677cc718b344753d1318636a

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe c46f804f0a1b6899f11e3360a430d67a4bde7c7d677cc718b344753d1318636a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/261570/

Comments