MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a10c525b2f0a94e7e9facfa4685490e9a46d0d6a62be53f570fa845cd680c56. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a10c525b2f0a94e7e9facfa4685490e9a46d0d6a62be53f570fa845cd680c56
SHA3-384 hash: fcb3baab155f89af7f13f2d6c9fbafa11c4e203f36d5d279381871854ec0ca5197f67efa275b5f5ec62118c1f99221f6
SHA1 hash: b8e8a890eb523e786793e95a305d319632a60e87
MD5 hash: 904fd496b076d10ab4fc547559b5d0b4
humanhash: kansas-diet-mississippi-florida
File name:Dhl package - pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:590'353 bytes
First seen:2020-09-21 16:32:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7c2c71dfce9a27650634dc8b1ca03bf0 (160 x Loki, 58 x Formbook, 55 x Adware.Generic)
ssdeep 12288:EanbtiNPkq2Nu/RXNV74UlGpVXG455ihwSREfCYCNl2SSDlrgCemY87zvL:ztm8TN8oV2+UwrfCzNlkDl8S77zj
Threatray 2'633 similar samples on MalwareBazaar
TLSH 97C423132351D86BC614C6B04114796A47FE120B1E86279F7FE82B5EFF667C2A92D381
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
146
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/64018/
Detection(s):
PUA.Win.Downloader.Soft32downloader-6691270-0
Create hunting rule

PUA.Win.Adware.Browserio-6725861-0
Create hunting rule

SecuriteInfo.com.Artemis162931E90DCF.4593.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a file in the %AppData% subdirectories
Launching a process
Sending a UDP request
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/471507
Signature
Creates an undocumented autostart registry key
Detected FormBook malware
Hijacks the control flow in another process
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 dropped file
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 288188 Sample: Dhl package - pdf.exe Startdate: 21/09/2020 Architecture: WINDOWS Score: 100 58 Malicious sample detected (through community Yara rule) 2->58 60 Multi AV Scanner detection for dropped file 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 3 other signatures 2->64 11 Dhl package - pdf.exe 64 2->11         started        process3 file4 36 C:\Users\user\AppData\Roaming\...\wbemDC.dll, PE32 11->36 dropped 38 C:\Users\user\AppData\...\vcdeployui.dll, PE32 11->38 dropped 40 C:\Users\user\AppData\Roaming\...\msdnmui.dll, PE32 11->40 dropped 42 8 other files (none is malicious) 11->42 dropped 14 rundll32.exe 11->14         started        process5 signatures6 76 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 14->76 78 Hijacks the control flow in another process 14->78 80 Maps a DLL or memory area into another process 14->80 17 cmd.exe 14->17         started        process7 signatures8 50 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 17->50 52 Modifies the context of a thread in another process (thread injection) 17->52 54 Maps a DLL or memory area into another process 17->54 56 3 other signatures 17->56 20 explorer.exe 17->20 injected process9 dnsIp10 44 3rdimultimedia.com 160.153.136.3, 49743, 49744, 49745 GODADDY-AMSDE United States 20->44 46 orchidinvestmentlimited.com 23.94.30.178, 49739, 49741, 49742 AS-COLOCROSSINGUS United States 20->46 48 4 other IPs or domains 20->48 66 System process connects to network (likely due to code injection or exploit) 20->66 24 wlanext.exe 1 17 20->24         started        signatures11 process12 file13 32 C:\Users\user\AppData\...\97Llogrv.ini, data 24->32 dropped 34 C:\Users\user\AppData\...\97Llogri.ini, data 24->34 dropped 68 Detected FormBook malware 24->68 70 Creates an undocumented autostart registry key 24->70 72 Tries to steal Mail credentials (via file access) 24->72 74 4 other signatures 24->74 28 cmd.exe 1 24->28         started        signatures14 process15 process16 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3a10c525b2f0a94e7e9facfa4685490e9a46d0d6a62be53f570fa845cd680c56/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-09-21 04:14:28 UTC
File Type:
PE (Exe)
Extracted files:
170
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hiimkjns6cuu47u7vt5enbkjb2nenugwuyv6kp2xb6ueltlibrla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
52ea3c1f51eb3a8920e2895ebe7d54ed9b010407775434da9c47fdeceae7af84
Formbook
6142ce64bdf7d4373dedcadb54fb06efed10595a65713783f2930eb1ebb9f989
Formbook
8bcdcd3db1dd3688101b18e4c090194ce7ac4e96ef206e56d5595e467cf25e46
Formbook
959621ed5f48dbbefe1c0e0e0a87bba88bc7a6b39cd1e10af930e1b969de9f97
Formbook
9ea8141b737b1dd5d56c800d4f84048014d83489f0fb3a78e42076a81186e30d
Formbook
a102b644fd134778f28e1105e4645e84ff4d05687351990de90ae27a89f0513b
Formbook
a102c4a2dfca8c218f1e65cbb5050012da856c3deba018d8c238fa9b09dd3a2b
Formbook
b1d9adc8ee80f24960fb84adbb029695e49763faecbf559f92410d44bf28b0d3
Formbook
d30b949fc05b15b611b3fe420b6883062c5bb2b270c769540c48f703a46cbbf3
Formbook
dafbe8f50df58d704b31ddd6cde8fafa09627ffc4dc63b774104376fe924c3e9
Formbook
+ 2'623 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/200921-1g49xvfeej/
Behaviour
NSIS installer
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/3a10c525b2f0a94e7e9facfa4685490e9a46d0d6a62be53f570fa845cd680c56

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

Formbook

ace 2f42f3029723540c5b3526f4d5e8b06c9cb924cb0b53f16be06d63d2faf55ec2

Formbook

Executable exe 3a10c525b2f0a94e7e9facfa4685490e9a46d0d6a62be53f570fa845cd680c56

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 2f42f3029723540c5b3526f4d5e8b06c9cb924cb0b53f16be06d63d2faf55ec2
Cape
Cape
https://www.capesandbox.com/analysis/64018/

Comments