MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 620376e4bbb28e2ff3c82427767153500ed1c55b8c20c565084940514b33bc9d. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 620376e4bbb28e2ff3c82427767153500ed1c55b8c20c565084940514b33bc9d
SHA3-384 hash: 1325dc17fcfe00760a75fcda791c332647b5460afa31f647704bc0007252ed7f9c6c856ec30f7fca963f937d44e00cb1
SHA1 hash: 73d21bad6957c4daa01d0f0985e0a7d7195dd24c
MD5 hash: e26c1b1406eb785bb2967bb118ea7c94
humanhash: hawaii-eighteen-fourteen-arkansas
File name:QUOTE REQUEST_PDF__________________________________...exe
Download: download sample
Signature Formbook
Create hunting rule
File size:862'720 bytes
First seen:2022-02-22 06:54:13 UTC
Last seen:2022-02-22 09:01:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:egB6A2Ngh7jiNvwWevV8WnUHzzMnBkHsS7uLF4PyivGxhL5DmX/+lI2:d2Nzvw0pyMd+VmX/89
Threatray 10'183 similar samples on MalwareBazaar
TLSH T19B05BF042AA70F3DE1BA4BB249C4EC64FBA9F7235D18F37D7C512196CA52B408D4267B
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/243112/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.Noon.lc.408.23870.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Reading critical registry keys
Sending an HTTP GET request
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/621488ceac8ad0468b64f3a6/reports/cb9659b4-d975-4906-b8e2-0696608453dc/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/625ac43b-4d53-49c5-af18-3d7882cb75e4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/943667
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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 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
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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: 576145 Sample: QUOTE REQUEST_PDF__________... Startdate: 22/02/2022 Architecture: WINDOWS Score: 100 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 12 other signatures 2->55 10 QUOTE REQUEST_PDF__________________________________...exe 7 2->10         started        process3 file4 39 C:\Users\user\AppData\Roaming\UIbGWCa.exe, PE32 10->39 dropped 41 C:\Users\user\...\UIbGWCa.exe:Zone.Identifier, ASCII 10->41 dropped 43 C:\Users\user\AppData\Local\...\tmpA442.tmp, XML 10->43 dropped 45 QUOTE REQUEST_PDF_..._________...exe.log, ASCII 10->45 dropped 57 Adds a directory exclusion to Windows Defender 10->57 14 QUOTE REQUEST_PDF__________________________________...exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        21 3 other processes 10->21 signatures5 process6 signatures7 67 Modifies the context of a thread in another process (thread injection) 14->67 69 Maps a DLL or memory area into another process 14->69 71 Sample uses process hollowing technique 14->71 73 Queues an APC in another process (thread injection) 14->73 23 explorer.exe 14->23 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 process9 29 msdt.exe 23->29         started        signatures10 59 Self deletion via cmd delete 29->59 61 Modifies the context of a thread in another process (thread injection) 29->61 63 Maps a DLL or memory area into another process 29->63 65 Tries to detect virtualization through RDTSC time measurements 29->65 32 explorer.exe 1 158 29->32         started        35 cmd.exe 1 29->35         started        process11 dnsIp12 47 192.168.2.1 unknown unknown 32->47 37 conhost.exe 35->37         started        process13
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/620376e4bbb28e2ff3c82427767153500ed1c55b8c20c565084940514b33bc9d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-22 06:55:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mibxnzf3wkhc746ieqtxm4ktkahndrk3rqqmkziijfafcsztxsoq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
22259dc22f3239bde439c60287d4498f423a35c8e1c2b5963616569d9786252f
Formbook
2fd3db9eb65d7a120e24e7245a73e4e88d4b2a7998d82986e8b2e2f20af1d932
Formbook
3c010d88a118ba3cc666e05c6f8f82159ac38e5486b5ed60c65d870287b8cff6
Formbook
503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b
Formbook
640ac0fcf97c0474f805fdf150d7c539650a833e1cbb47393e188da5a1f5f5c3
Formbook
76c6384db63b1a5a7057da1bd58f0b1d14a9f7d23ec4e1fdd8b93bbd78d1858e
Formbook
950ead10061a0d06ae1314f85d90925ed519d91ff8360236960e9abf68a99b7c
Formbook
d6a113f33599b8c821531df91dc5cd29501cab9fa911b8844a3447d0991e7362
Formbook
+ 10'173 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ihg0 loader rat suricata
Link:
https://tria.ge/reports/220222-hpsdeaeham/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Gathers network information
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
811078381800166dbbc5fd38d26c3bef261557c73ff977602a2248287073df3f
MD5 hash:
f33cef1ae2de76a7e317e95f89b1c75c
SHA1 hash:
eb42461f6bc3be8d61f900d96ef01d25aef7207b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c93d303a-3c1b-48a8-ac80-b504161b1b85/
Parent samples :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 hash:
2c1b16b7139d99f7fb89f2c0a6faa6d42d8f6d0d89e31852f7a83d811a4e3dd3
MD5 hash:
859d7cc701992a93a961b757d77eeb93
SHA1 hash:
87664504219b920aea75858cb3f59f14b6195ae2
Link:
https://www.unpac.me/results/c93d303a-3c1b-48a8-ac80-b504161b1b85/
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/c93d303a-3c1b-48a8-ac80-b504161b1b85/
SH256 hash:
cafe3be1c60d1f86c81261dcafdb28f4c4f8079d4994bc31aceea63bc4a6240e
MD5 hash:
f2f50f98cb7ff53113235f5d3cae5354
SHA1 hash:
3880f63fad9d8e9dd928c779b4ffa0f188436728
Link:
https://www.unpac.me/results/c93d303a-3c1b-48a8-ac80-b504161b1b85/
SH256 hash:
620376e4bbb28e2ff3c82427767153500ed1c55b8c20c565084940514b33bc9d
MD5 hash:
e26c1b1406eb785bb2967bb118ea7c94
SHA1 hash:
73d21bad6957c4daa01d0f0985e0a7d7195dd24c
Link:
https://www.unpac.me/results/c93d303a-3c1b-48a8-ac80-b504161b1b85/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/620376e4bbb2/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/620376e4bbb28e2ff3c82427767153500ed1c55b8c20c565084940514b33bc9d

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 620376e4bbb28e2ff3c82427767153500ed1c55b8c20c565084940514b33bc9d

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/243112/

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