MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7
SHA3-384 hash: 0e25d636cf9688c141fb01f12d9f0f69cefd7ecb9a9273b96ad72ea1f50b2969b0653087388c36c711818aae74ef223f
SHA1 hash: 2a8925ba90f3972a93b0db7882c9f060a51a114d
MD5 hash: 1931f5b75ae8d9c14ec61cdd53e70f21
humanhash: idaho-oranges-winner-ack
File name:SecuriteInfo.com.Trojan.PackedNET.507.23078.3745
Download: download sample
Signature Formbook
Create hunting rule
File size:611'328 bytes
First seen:2021-01-21 10:15:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:TT/OnNNWOradK8obFvIZSB7YVGxDHQnnihrtZ5cJA6xQJlcOTKI5/DX85JopCano:v28+qIYVGaihJbuA6S3HeI5/DM5Jjko
Threatray 3'603 similar samples on MalwareBazaar
TLSH 64D44A526928D5C6E8BD52B2E69785F928F03C6ACBC1516F71AAFF363070352024F91F
Reporter SecuriteInfoCom
Tags:FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_RFQ_MVSEASAIL_34.xlsx
Verdict:
Malicious activity
Analysis date:
2021-01-21 06:33:52 UTC
Tags:
encrypted trojan exploit CVE-2017-11882
Link:
https://app.any.run/tasks/9e409262-4789-4eb9-8e5c-84e1c3aac3be

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/113250/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
Creating a file
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/587116
Signature
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
Sigma detected: Suspicious Svchost Process
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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 342582 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 21/01/2021 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 3 other signatures 2->45 10 SecuriteInfo.com.Trojan.PackedNET.507.23078.exe 3 2->10         started        process3 dnsIp4 37 192.168.2.4, 443, 49228, 49285 unknown unknown 10->37 29 SecuriteInfo.com.T...T.507.23078.exe.log, ASCII 10->29 dropped 55 Writes to foreign memory regions 10->55 57 Injects a PE file into a foreign processes 10->57 15 InstallUtil.exe 10->15         started        file5 signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 2 other signatures 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 31 www.c2ornot.com 156.252.101.208, 49767, 49779, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 18->31 33 www.maisonscoeurdepivoine.com 91.121.39.102, 49770, 80 OVHFR France 18->33 35 20 other IPs or domains 18->35 47 System process connects to network (likely due to code injection or exploit) 18->47 22 svchost.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 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/391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2021-01-21 08:05:58 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hepcvlqonityc6ukk7eh5cnqrzuse37bdpc3owty3tcflf5j7t3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
220ab940326b10e217ed23f4806edd06fac3cf52cbd3c8863863eac6893b02ea
Formbook
2d876129c69f0f4be0c87aeb20cdc38ae8f5db29bea6f87807946b89e0b61a50
Formbook
3ed3126cfc3094e0f1a5736369cc55f68feb9bf6c9e31ba6e00e36f11917bc18
Formbook
5551c39b0838a38711babfe60b36dda8855791ce1512553858fbaff025d31122
Formbook
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087
Formbook
82327e5e44156cddbd2dd77556fc746dad24eeaedc11733c82729c7d0c10a1e7
Formbook
b88d84be2994a05ac716dac99a689356d8c7ecbd541989a5339be403da909430
Formbook
b9a286880c70bf7b6b049c8be7b7b14d8318b6c38d04185eced4bc48795330ff
Formbook
f45429329da30ae0032b202f9e9165b0a6b3bba97389590026c17b8c71f03f11
Formbook
f991818096935708b00e812a9700a0215a1583047f2721552a9d6375abf0db75
Formbook
+ 3'593 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210121-dx8gz1pa8a/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.kaiyuansu.pro/incn/
Unpacked files
SH256 hash:
ca17be49a177427e2b5cfc38545b5aa9e158cb9f2a72a4159ee2473af971443d
MD5 hash:
61385c6f0aa55ff6865df8f5e107c793
SHA1 hash:
09b04fb9e8cf0aaa572b7324813cd05e23d8f289
Link:
https://www.unpac.me/results/156cb9ed-0bfe-4b26-8864-f4b71f50c17a/
SH256 hash:
97024f17003dd3d31dab64c4d1b8251e50d428644eb59ed3692ad79ce42019cf
MD5 hash:
8cd28be4bd9a1404c6d3600db32b3ed1
SHA1 hash:
fb90b0ca51118e771390d58b19d0a404ee14cfbc
Link:
https://www.unpac.me/results/156cb9ed-0bfe-4b26-8864-f4b71f50c17a/
SH256 hash:
b465c8881542a4611151f7789e24cf4fc1b840f048a5607f9854844b09b5aa34
MD5 hash:
c62062fce465193f9d4f5e24e50222c6
SHA1 hash:
2dbdf9ffff58871bd18a6e4b9ae49025b7a15163
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/156cb9ed-0bfe-4b26-8864-f4b71f50c17a/
Parent samples :
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087
f991818096935708b00e812a9700a0215a1583047f2721552a9d6375abf0db75
391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7
5c26f9486bb9cf170e24b8b022e4a8d8eca8632b158ce0b2751b3f34c81b4221
SH256 hash:
391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7
MD5 hash:
1931f5b75ae8d9c14ec61cdd53e70f21
SHA1 hash:
2a8925ba90f3972a93b0db7882c9f060a51a114d
Link:
https://www.unpac.me/results/156cb9ed-0bfe-4b26-8864-f4b71f50c17a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7

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:win_nymaim_g0
Create hunting rule
Author:mak, msm, CERT.pl

File information

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

Web download

Formbook

Executable exe 391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/972967/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/113250/

Comments