MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32. 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 4 File information Comments
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SHA256 hash: 1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32
SHA3-384 hash: 7cc427bf6116419196671e0c0d4253953b06c34cfdbe2f809a86ce0411d3d6d3ca989973dac5e182cf74063cc538db1e
SHA1 hash: 90eb55324f4068a4fde1da25ca7a3eff65d17e1e
MD5 hash: 0082bb1c3ac5dc499f6db3d45de0ab3e
humanhash: juliet-cold-march-mobile
File name:pos.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:464'896 bytes
First seen:2021-10-21 13:53:55 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 6144:RT6Uqd2GhN5TebaT+hbE8BuXQ7NwHeOwvGOYLtXy00ynAWGyAu4mpwcFCLFjuShC:RmUi2iNtwBE0YOYLt7WDuZmo4juCueW
Threatray 10'746 similar samples on MalwareBazaar
TLSH T157A4E046324882F4DB3C2A7B7D93A34C7BE27CF5A942D24C57C2F19A19B23615E305B6
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/199105/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/617170fd9a5a1e91c5cb9e5d/reports/dba03ea5-7695-416b-8e58-deea5a45fa8e/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/608bdf2e-f8ce-4d71-bb4b-65355cacbd6b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/874617
Signature
.NET source code contains potential unpacker
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 507042 Sample: pos.exe Startdate: 21/10/2021 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 8 other signatures 2->54 10 pos.exe 7 2->10         started        process3 file4 36 C:\Users\user\AppData\Roaming\YAeSiES.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\Local\Temp\tmp92.tmp, XML 10->38 dropped 40 C:\Users\user\AppData\Local\...\pos.exe.log, ASCII 10->40 dropped 58 Uses schtasks.exe or at.exe to add and modify task schedules 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 62 Injects a PE file into a foreign processes 10->62 14 pos.exe 10->14         started        17 schtasks.exe 1 10->17         started        19 pos.exe 10->19         started        21 3 other processes 10->21 signatures5 process6 signatures7 72 Modifies the context of a thread in another process (thread injection) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Sample uses process hollowing technique 14->76 78 Queues an APC in another process (thread injection) 14->78 23 explorer.exe 14->23 injected 27 conhost.exe 17->27         started        process8 dnsIp9 42 www.oxygenglobal.net 23->42 44 www.oxygenglobal.net 23.90.37.72, 49833, 80 EONIX-COMMUNICATIONS-ASBLOCK-62904US United States 23->44 46 2 other IPs or domains 23->46 56 System process connects to network (likely due to code injection or exploit) 23->56 29 chkdsk.exe 23->29         started        signatures10 process11 signatures12 64 Self deletion via cmd delete 29->64 66 Modifies the context of a thread in another process (thread injection) 29->66 68 Maps a DLL or memory area into another process 29->68 70 Tries to detect virtualization through RDTSC time measurements 29->70 32 cmd.exe 1 29->32         started        process13 process14 34 conhost.exe 32->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-21 12:47:53 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=do4rhvxvsqihvdenjvspti66qxdafaj5tlmtdcnzssp3zcutviza._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
25e5055023abbb8c18992618b6f04c94b8b13ff8bd33d4a4f8462d92902461bf
Formbook
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
7c7e7d1ad3f8afd0ffcba163bac7c1df9ceb8202a96a61b30b697569e00051b0
Formbook
a68cb3bf1d9d41e29fcf2e4391e827591e58783cea5a13fe95403fb6b3429b5d
Formbook
aea2232a122d01c07c5d7e6a10ceef2d2ffa58c10812f95f965f17aa78e82efa
Formbook
bb6c08035fd7dc06d3ace7952af7bd640c45c548e087dba1deaa45f1861b0077
Formbook
c63cb761da677849b8382eb1d926569f00a04d57f2c789b63e7f2eb2e368a00c
Formbook
dcee55c9896715272cfd344a7a62fe6c5dbe0e61d7d8548beeda46c15bd8e07c
Formbook
fedeb19031bcc0941b0943dd3ed45ee6095b8c489c072c85e513b414abf8acf5
Formbook
+ 10'736 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:u1bs rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211021-q7jszsbccl/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.vgmpradio.com/u1bs/
Unpacked files
SH256 hash:
76103add05c8ca7a29efceafaa6d241c11de14c358d2a2f1dd33714c2423d3f3
MD5 hash:
245840d43ff7f615649fc1d41a34b349
SHA1 hash:
4318cc898f26f68f2042a9d5b262493f17528795
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ae17245d-041d-492b-bbac-4e983f144065/
Parent samples :
429add11efba80f4e7d037b428d2dfc76e2c6904b5ff94ab0ccaa1fb4d665348
1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32
78670e73101801526b59bf2bdead06d95cad399ff72abadfc0e00ba557643c80
62678459c076b6993bbe9cc617bde236afe8a87906f5de98adc375665ba0a84f
3f329c3c43a80af4145116889d380b5022d7509b18a36143d3adf455d71ad02f
100a38f41bd7479fffee98011672258611db629db410d4ef622dc2b87ba5b6fe
SH256 hash:
ee7bb94b06e37fbd19b052935b95fd6c4fc6d508c44e5c31fcf84542160e6c6a
MD5 hash:
acbb7a4a7aedac016edda469ca1711eb
SHA1 hash:
65308ef0e4b7fbfabcc48f4cde253bf75af21552
Link:
https://www.unpac.me/results/ae17245d-041d-492b-bbac-4e983f144065/
SH256 hash:
6fee24a1398bb022d0c5b9059b9b21e7636fc3861866a583d0e49b7d0ca56d58
MD5 hash:
36e2528c3cb3ad299ea481283687cdd6
SHA1 hash:
1981340bc7be1aa8f78f942fc6f0724838e35a87
Link:
https://www.unpac.me/results/ae17245d-041d-492b-bbac-4e983f144065/
SH256 hash:
1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32
MD5 hash:
0082bb1c3ac5dc499f6db3d45de0ab3e
SHA1 hash:
90eb55324f4068a4fde1da25ca7a3eff65d17e1e
Link:
https://www.unpac.me/results/ae17245d-041d-492b-bbac-4e983f144065/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1bb913d6f594/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32

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

gz a5e9691e534dca4edb6c0a0e86690541c9ec6f4f17bb4b0114c4045bc2e0b79b

Formbook

Executable exe 1bb913d6f594107a8c8d4d64f9a3de85c602813d9ad93189b9949fbc8a93aa32

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 a5e9691e534dca4edb6c0a0e86690541c9ec6f4f17bb4b0114c4045bc2e0b79b
Cape
Cape
https://www.capesandbox.com/analysis/199105/

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