MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b2888cc6f4f233acad6a7548e72cfcce28ab97931c987cf8c1243a39b44aa34. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6b2888cc6f4f233acad6a7548e72cfcce28ab97931c987cf8c1243a39b44aa34
SHA3-384 hash: a67875a2a1ed4ec1e49df7b79a20bede733c6a7a0c3468c1e31cfce5781092350272ad62a5a401069c376c75177bb816
SHA1 hash: c410012bb42135d4eecece4f994724a35bbe2c56
MD5 hash: 9b7901e64d7644491b5402ead59e1f8a
humanhash: emma-bacon-blue-enemy
File name:0026.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:471'552 bytes
First seen:2020-10-26 13:41:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:UlzdTZ4rjNxG/i/OfFGr6YLu/gV0JHwNdZQxBnNXh7T9DPr:UV/4rjvGiO9C6YS/g66mNXh7T9X
Threatray 3'024 similar samples on MalwareBazaar
TLSH 2BA4C0B27D92587ECA6E0775116985C0FAB617C73FA48B0D719F430C0E15A2BEB6324B
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: newserver1.nexusmediaworks.com
Sending IP: 43.252.214.38
From: Account <sharon@merryprice.com>
Subject: STATEMENT OF ACCOUNT
Attachment: 0026.zip (contains "0026.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79085/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a file
Creating a process from a recently created file
Launching the process to change network settings
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/511859
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
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 submitted file
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 305058 Sample: 0026.exe Startdate: 26/10/2020 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 5 other signatures 2->42 10 0026.exe 8 2->10         started        process3 file4 28 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 10->28 dropped 30 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 10->30 dropped 32 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 10->32 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 14 AddInProcess32.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 2 other signatures 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 34 www.universitynude.com 213.247.47.190, 49724, 80 WEBAIR-INTERNETUS Netherlands 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cmstp.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6b2888cc6f4f233acad6a7548e72cfcce28ab97931c987cf8c1243a39b44aa34/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2020-10-26 02:03:19 UTC
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nmuirtdpj4rtvswwu5ki44wpztrivolzgheypt4mcjb2hg2evi2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0982a348bad7e99222ac6ec6c6dc2c113eb8adff8785bd1f371c5bc90b0025b3
Formbook
273e14710bfe15975737d9e213b6007a29cc795c993b6b121c745581ec1c4b96
Formbook
3864dd603fd4616753b80ec6146bccaac77ee9ec7590d088d121dc15db1dc98a
Formbook
73c740cf8efc312c3fed42aceee4f4513b8ce620aaf31793676f8de2810fdadb
Formbook
83a00cced5b83593db2ff0ce7f23937ba5b836b28969c1a0d481a6e9fbea5f53
Formbook
a4d4e093896e53df94a4ffb14632be70329334ac705925a975fa499ac7ee0a89
Formbook
a6fd278a82dad870444a8d93e3c05accdfaef779460c2f3777d9ef2441620a41
Formbook
a7bed76e3e3a297b0dd90fc1ab64bd6799c3dba188934f995b1a210781657280
Formbook
b791ce91936d65f90d9ca761c1999ea8330b66d3c3aede92564395d4778b5955
Formbook
e812ca08bf2f1a1ea83facfaab349a8fa9d9fd88607d2b61a81423bb3f992175
Formbook
+ 3'014 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201026-nqx9hg5psx/
Behaviour
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 SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.crazyenergyguy.com/dmr/
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

Formbook

zip 06898273bd28547526d3383a2d0c106835f4499ee6593ba7cf240fd4e1348f12

Formbook

Executable exe 6b2888cc6f4f233acad6a7548e72cfcce28ab97931c987cf8c1243a39b44aa34

(this sample)

  
Dropped by
MD5 ce736027e415a2108a2e04b3fffbec7a
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 06898273bd28547526d3383a2d0c106835f4499ee6593ba7cf240fd4e1348f12
Cape
Cape
https://www.capesandbox.com/analysis/79085/

Comments