MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c08635756f84fd0564e081544cb5c5b2130d14b1a0965be3f971be131f401b70. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c08635756f84fd0564e081544cb5c5b2130d14b1a0965be3f971be131f401b70
SHA3-384 hash: 87c0ef14e36ed6319269a1f469f50d7487d822a7390886835212f6db93f2a22cd3cc8ec102764465cde7a9acf160c009
SHA1 hash: fd5a53af42d006ba81383e4b4224d2b4807f3f01
MD5 hash: 238a711fcfa7ed1c1556236e91227193
humanhash: beryllium-three-double-bakerloo
File name:Package Details.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:442'368 bytes
First seen:2022-01-19 02:21:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:CBlPmg9yLc9JcV0pM0CCQ0+QcDNhAI9U:VhmbpSCQ0+bwI9U
Threatray 13'515 similar samples on MalwareBazaar
TLSH T18E94F2A407ED9624EAAE4BBCF8B601500379F11225A3F70E2B89B0E53D53755C69237F
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Package Details.exe
Verdict:
Malicious activity
Analysis date:
2022-01-19 02:24:36 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/54db61f5-35bb-4896-9b59-bcf34ee7ac62

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/220436/
Detection(s):
SecuriteInfo.com.MachineLearning.Anomalous.100.26142.16965.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
80%
Tags:
control.exe obfuscated packed remote.exe replace.exe update.exe
Link:
https://www.filescan.io/uploads/61e775d40f8c757253caac9e/reports/0a89f0f8-80f3-4f0d-b5e5-b447e2b90c95/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/b3b7545d-7097-4a19-a41d-38cc1cb3b61b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/923061
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Performs DNS queries to domains with low reputation
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 555536 Sample: Package Details.exe Startdate: 19/01/2022 Architecture: WINDOWS Score: 100 36 www.invitiz.com 2->36 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 9 other signatures 2->50 11 Package Details.exe 3 2->11         started        signatures3 process4 file5 28 C:\Users\user\...\Package Details.exe.log, ASCII 11->28 dropped 14 Package Details.exe 11->14         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.chifaebio.xyz 141.125.109.198, 49815, 80 SOFTLAYERUS United States 17->30 32 victori-jaya.com 109.106.254.236, 49817, 80 NETNET-ASRS Serbia 17->32 34 9 other IPs or domains 17->34 38 System process connects to network (likely due to code injection or exploit) 17->38 40 Performs DNS queries to domains with low reputation 17->40 42 Uses netsh to modify the Windows network and firewall settings 17->42 21 netsh.exe 17->21         started        signatures10 process11 signatures12 52 Self deletion via cmd delete 21->52 54 Modifies the context of a thread in another process (thread injection) 21->54 56 Maps a DLL or memory area into another process 21->56 58 Tries to detect virtualization through RDTSC time measurements 21->58 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/c08635756f84fd0564e081544cb5c5b2130d14b1a0965be3f971be131f401b70/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-19 00:15:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ycddk5lpqt6qkzhaqfkeznofwijq2ffruclfxy7zog7bgh2adnya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
15f9ae45222e5eb82ac39303b8f9b852399bbf3ea54c3f7ff7d04e76756bc43f
Formbook
459c86bf11535b9d62c895a6677a5eb40d8f0cf3136477e5da746045bf3fb6a3
Formbook
76d73723ac1e30fad92d7f3fdbb0a87c1d8854ad4e7d3d728805a3f26843085c
Formbook
786698eab83f77c1fdc3d37daf49966befe788b0e85167083726354225176d1f
Formbook
9050768f69225078f05d535401510a5b361dd071430e40639e869c7247621908
Formbook
a1d8420052bbdcaf3d318427bfe57edf5cc330fb14aaa5f4a597fac220c2a6de
Formbook
a2eedaf98eddfe127f05ad7d8ee31b718f2053d77e719346b998e7e22b1cfa0f
Formbook
f80dd0bf7402bebd03d303c97c8dd3f921d3e923a2521f4a2af2e4bf3c288aa1
Formbook
+ 13'505 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:rexd loader rat suricata
Link:
https://tria.ge/reports/220119-ctm2laegfp/
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
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
c6075189076407ce32a7aa5a36b2b1523729c182f7b07b57a3d9d8507dbfc231
MD5 hash:
afb60e5303c0c82f0f0c3201d05881cf
SHA1 hash:
7aa28844ec3787ca660aa291353acbff03224ed1
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4538a933-0392-4e2d-9a4c-92b9bf049dad/
Parent samples :
9374f50165184534add26466aaab6275130e442387cae74b3c4461db85ed456a
c08635756f84fd0564e081544cb5c5b2130d14b1a0965be3f971be131f401b70
89c9a52351f75b5be88f745b84dbb5c16930cca9d932f33b008993167e022e70
3cc59342fdbb5aa332f7d99216ac3f1ede121e0752e5aaff260e16432c23908d
fe33a5e411c82f48ecaebf3b0a89d1a1aad37b8c29b91ca4416b94ec5fc83da6
SH256 hash:
9a91db783551302f1de84c5a721e2d5ef4bd911b2910993380452d1e2925cf04
MD5 hash:
fe33bcf2810a34783a78c3eaf851d4b8
SHA1 hash:
e8da5e570e3a8c31579a8005a27bdb8f3bb8263b
Link:
https://www.unpac.me/results/4538a933-0392-4e2d-9a4c-92b9bf049dad/
SH256 hash:
11b144f96d1c9523caae4e985d7a14ad6fbf1a73cc26127e1af711bde9b90d3a
MD5 hash:
a180bcc993d6c98b5c31042df432cd48
SHA1 hash:
a3ee3db7548611f0e3409c2dc37baf1f5e2a1185
Link:
https://www.unpac.me/results/4538a933-0392-4e2d-9a4c-92b9bf049dad/
SH256 hash:
c08635756f84fd0564e081544cb5c5b2130d14b1a0965be3f971be131f401b70
MD5 hash:
238a711fcfa7ed1c1556236e91227193
SHA1 hash:
fd5a53af42d006ba81383e4b4224d2b4807f3f01
Link:
https://www.unpac.me/results/4538a933-0392-4e2d-9a4c-92b9bf049dad/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/c08635756f84fd0564e081544cb5c5b2130d14b1a0965be3f971be131f401b70

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
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.

Malspam

Formbook

Executable exe c08635756f84fd0564e081544cb5c5b2130d14b1a0965be3f971be131f401b70

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/220436/

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