MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a5b157dc8c983424ebc3a69962649236e17001585de6280cf11f4d94742d28e. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2a5b157dc8c983424ebc3a69962649236e17001585de6280cf11f4d94742d28e
SHA3-384 hash: 6394de72c52b448177954dc3ec1894e693a1d9d3f39d598e71307ddb16c558a2bd8cfa9407657ecd729de0a502a7fb10
SHA1 hash: e3e681c22de9ed26d02b9cd9d3a55dea53e22076
MD5 hash: 1d39dd05997c5be93c3cc9ee241e66dd
humanhash: tango-lithium-stream-oxygen
File name:Scan-PI497110_pdf.gz.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:665'088 bytes
First seen:2021-02-09 19:24:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:iD59qCqX03qmqPqGrBOb3npnBde8Yjmsbu46AQsVbfwZhCjWz:DW3pnBd+msKd1xh9
Threatray 3'793 similar samples on MalwareBazaar
TLSH DEE48D6623586F1AF2BDB3B6D4650870A3F5ED16E325EF8F3EA870CA0571F44D611602
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Scan-PI497110_pdf.gz.exe
Verdict:
Malicious activity
Analysis date:
2021-02-09 19:25:20 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/51961efc-782a-42ba-9970-ce8806b437e4

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/116241/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.537.5334.11982.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
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/603529
Signature
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 350771 Sample: Scan-PI497110_pdf.gz.exe Startdate: 09/02/2021 Architecture: WINDOWS Score: 100 39 www.hawatt.com 2->39 41 www.cqwodeer.com 2->41 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 8 other signatures 2->55 11 Scan-PI497110_pdf.gz.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\hLrtPv.exe, PE32 11->33 dropped 35 C:\Users\user\AppData\Local\...\tmpC78B.tmp, XML 11->35 dropped 37 C:\Users\...\Scan-PI497110_pdf.gz.exe.log, ASCII 11->37 dropped 65 Tries to detect virtualization through RDTSC time measurements 11->65 15 Scan-PI497110_pdf.gz.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 43 www.pastissadebeach.com 156.235.101.154, 49741, 80 VPSQUANUS Seychelles 20->43 45 fwd3.hosts.co.uk 85.233.160.22, 49742, 80 ISIONUKNamescoLimitedGB United Kingdom 20->45 47 6 other IPs or domains 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 26 cmmon32.exe 20->26         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2a5b157dc8c983424ebc3a69962649236e17001585de6280cf11f4d94742d28e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-09 17:07:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fjnrk7oizgbuetv4hjuzmjsjenxboaavqxpgfagpch2nsr2c2kha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3550ff88757875f1e8566d7855eacb36fa3213a1537d4125555bc71a88d55018
Formbook
48d3a3e4c8e3ee8168d1f0b24f1d57ba7f7f66628f7f81ee9dab9f9f26aadfd7
Formbook
5718e1407d78fa10c9f60928d72d6c67e3555f740ae84f9d81c5516b2a466385
Formbook
726a32ca7c910d88e59d2d2364def087b00b9c869ef29926016884def6457b6b
Formbook
72c822dc6059af0f57f65a9e52a509e30caefe4225367c3eec186f013134d54f
Formbook
7c8c0bb9a552f62aa1ef1e5c037ef17b2064055d15025eea8c6b2b5ccd54f10e
Formbook
ac4d58dc0ca5617911f7ff52953cec2eac9249963dbce3b2f682aeb6eb1baa77
Formbook
c8c864915e84ba7ec98eed5ed70893bcb5b328e59751694595a71b303ea587aa
Formbook
cc768b0d5c345d446eacb21922c6561e763015cc6782fdde5a051e1d4fe56acf
Formbook
ded4435057919aa79f8453db4172ffd89198323fa247e70daa418a7a21136df2
Formbook
+ 3'783 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook ransomware rat spyware stealer trojan
Link:
https://tria.ge/reports/210209-zfe7trjb3x/
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.brasilseo.com/bft/
Unpacked files
SH256 hash:
d24e66e58c2c85b4f7ed37422e189f85fc64cfdc4acecfca8324c6d0c57eaba7
MD5 hash:
1d3bee0d88895bc916980c8e277e950e
SHA1 hash:
912db89d8fde5a72e286810dfa5177a6f8e202e9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5e9f6883-09b2-434b-ae45-33b124b3eb27/
Parent samples :
7c8c0bb9a552f62aa1ef1e5c037ef17b2064055d15025eea8c6b2b5ccd54f10e
cddf575d340c695e513d03330965f716f8ddf17f5d2fb0929fbb78875653d8b7
72c822dc6059af0f57f65a9e52a509e30caefe4225367c3eec186f013134d54f
48d3a3e4c8e3ee8168d1f0b24f1d57ba7f7f66628f7f81ee9dab9f9f26aadfd7
c8c864915e84ba7ec98eed5ed70893bcb5b328e59751694595a71b303ea587aa
3550ff88757875f1e8566d7855eacb36fa3213a1537d4125555bc71a88d55018
726a32ca7c910d88e59d2d2364def087b00b9c869ef29926016884def6457b6b
cc768b0d5c345d446eacb21922c6561e763015cc6782fdde5a051e1d4fe56acf
2a5b157dc8c983424ebc3a69962649236e17001585de6280cf11f4d94742d28e
2dce266f65b63c927ddf95e71bb0d226eb1c8b260ba8a6965ba1352e9fa837af
SH256 hash:
fa12af0a1184beb559ac3ca348badf3343a4d353d3766c2814f509566d9421c3
MD5 hash:
67c3b810d6c2bed8bb264e76dbd8da77
SHA1 hash:
ceea48cd385f774002549a970c76e8990a4f1cfa
Link:
https://www.unpac.me/results/5e9f6883-09b2-434b-ae45-33b124b3eb27/
SH256 hash:
2b2bcf851c2b87033fd24c890c2a1de3642564f7cec7282982d96b8280baa849
MD5 hash:
befb0470c71d676cc891cba16088975d
SHA1 hash:
5b7143f97d1d656fd1cacf70949048c1951b639a
Link:
https://www.unpac.me/results/5e9f6883-09b2-434b-ae45-33b124b3eb27/
SH256 hash:
2a5b157dc8c983424ebc3a69962649236e17001585de6280cf11f4d94742d28e
MD5 hash:
1d39dd05997c5be93c3cc9ee241e66dd
SHA1 hash:
e3e681c22de9ed26d02b9cd9d3a55dea53e22076
Link:
https://www.unpac.me/results/5e9f6883-09b2-434b-ae45-33b124b3eb27/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Starter
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2a5b157dc8c983424ebc3a69962649236e17001585de6280cf11f4d94742d28e

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

7z 091462bac114a4625511783f20ef202ae7264705e8a9d3710e7f2bd21c4d0e85

Formbook

Executable exe 2a5b157dc8c983424ebc3a69962649236e17001585de6280cf11f4d94742d28e

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 091462bac114a4625511783f20ef202ae7264705e8a9d3710e7f2bd21c4d0e85
Cape
Cape
https://www.capesandbox.com/analysis/116241/

Comments