MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e88cecc4da06f862d6945405ff9aa22b5022ea86bab478b2745f4290f32fd42. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e88cecc4da06f862d6945405ff9aa22b5022ea86bab478b2745f4290f32fd42
SHA3-384 hash: c8de566b013cdfdd453fefdb4845ed16501755253232c5a70cd6d561f5bb1919d2a55b3e29c38f55330c4fa5172f1a4d
SHA1 hash: 2f02b736623bd7ab79d0c32c3d013d7fbf82e00c
MD5 hash: 7ca4fb53a30dfa188a85bd0b50d0cf4a
humanhash: saturn-kansas-eleven-eleven
File name:aoKzFd4OTYlYvzi.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:910'848 bytes
First seen:2021-04-29 15:05:29 UTC
Last seen:2021-04-30 08:24:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:Gv8kd8d1OzaYb3iXhUdi20GkfO8FMwt7Z9ZLRY9ZLu:Yjd8vOBb3ixUdi2qfO5Y9k9A
Threatray 4'927 similar samples on MalwareBazaar
TLSH EA15023A3B8C9E57C23D04F50861A69263F5E5A12622E74D3DA4635D46F23C6D33B3E2
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/146748/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.PackedNET.688-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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/702620
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 400239 Sample: aoKzFd4OTYlYvzi.exe Startdate: 29/04/2021 Architecture: WINDOWS Score: 100 32 www.dofus-tr.com 2->32 34 www.ssc018.com 2->34 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 5 other signatures 2->50 11 aoKzFd4OTYlYvzi.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\...\aoKzFd4OTYlYvzi.exe.log, ASCII 11->30 dropped 60 Writes to foreign memory regions 11->60 62 Injects a PE file into a foreign processes 11->62 15 RegSvcs.exe 11->15         started        signatures6 process7 signatures8 64 Modifies the context of a thread in another process (thread injection) 15->64 66 Maps a DLL or memory area into another process 15->66 68 Sample uses process hollowing technique 15->68 70 2 other signatures 15->70 18 explorer.exe 15->18 injected process9 dnsIp10 36 www.holdimob.com 204.11.56.48, 49767, 80 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 18->36 38 www.hysjs168.com 182.61.46.180, 49749, 80 BAIDUBeijingBaiduNetcomScienceandTechnologyCoLtd China 18->38 40 8 other IPs or domains 18->40 52 System process connects to network (likely due to code injection or exploit) 18->52 22 wlanext.exe 12 18->22         started        signatures11 process12 dnsIp13 42 www.pcbet999.com 22->42 54 Modifies the context of a thread in another process (thread injection) 22->54 56 Maps a DLL or memory area into another process 22->56 58 Tries to detect virtualization through RDTSC time measurements 22->58 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4e88cecc4da06f862d6945405ff9aa22b5022ea86bab478b2745f4290f32fd42/
Threat name:
ByteCode-MSIL.Infostealer.Coins
Create hunting rule
Status:
Malicious
First seen:
2021-04-29 15:05:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
37
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j2em5tcnubxymlljivaf76nkek2qelvinovupczhix2csdzs7vba._file
Verdict:
malicious
Similar samples:
03cd38ce63530aff9a8797f637a1d821b155502537dc0f149121ec5548548a03
Formbook
061a37c356d3f7c0ff1722301eb3f36631b7c931031c450cc90a3dd6cc5d8d44
Formbook
159415d33340dcf205d3d030f0d32cac913660bd456810d199de5f9cd8732705
Formbook
4c84ae992216034d364ea35c6af5ee9c01826688106cf6bdbc32d6fc42584f62
Formbook
a3af8681c8cd48f98c8bf2666e12d285963d2375ea4982e975144fee69806f82
Formbook
a3d951fa76fbb0f24540b97767e2d327b9bdb2e6e93721cb3da4ac5370118dbc
Formbook
a557dd45c97fa26c318728d77a46ea6b69afba06d1cbdc00975fe27492c5f17a
Formbook
be797a9728d2139d4ea71acf7f60816eefc2cb5ec16ce3a366a78f67554d63be
Formbook
ceb5bc15744e2012960f919d742b4f9463bbae1faf31fcb5a97b5b865a4fb8d7
Formbook
f3d5563cbcc2253ffa039657b7db3d50c9db4e0e686d83ab9d022e489fea3bb7
Formbook
+ 4'917 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210429-rgnqh74my2/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.hysjs168.com/uv34/
Unpacked files
SH256 hash:
11cf5a51e593c007ff4f91294cf505ffd5e425e56387c60d81e6479cc284cc3b
MD5 hash:
73cc3f7e7700e6a54cb5f291dffe5aa1
SHA1 hash:
09174f9fa55c9bac0540efb7a8c682878a32d02d
Link:
https://www.unpac.me/results/c43bb1f3-09f1-4b40-9ff5-dba747f4aa65/
SH256 hash:
4e88cecc4da06f862d6945405ff9aa22b5022ea86bab478b2745f4290f32fd42
MD5 hash:
7ca4fb53a30dfa188a85bd0b50d0cf4a
SHA1 hash:
2f02b736623bd7ab79d0c32c3d013d7fbf82e00c
Link:
https://www.unpac.me/results/c43bb1f3-09f1-4b40-9ff5-dba747f4aa65/
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/4e88cecc4da06f862d6945405ff9aa22b5022ea86bab478b2745f4290f32fd42

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/146748/

Comments