MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc8dedb234d17ae5d5e58eaf372988114b82bd1a9defe9934e8d7738e15a88ab. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments
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SHA256 hash: fc8dedb234d17ae5d5e58eaf372988114b82bd1a9defe9934e8d7738e15a88ab
SHA3-384 hash: 08dd0a148cf3ba8db2ca6778b0f1a3316a437db97dcb548a0085c0a2fab8b80f2f05b0171e4b61cbb673b183c27d2aa4
SHA1 hash: 7a0a5f4712f0dc9a6e422406b905b5137421dd6c
MD5 hash: 3400578649e2a279e6c7cdf89fbb583c
humanhash: glucose-music-iowa-berlin
File name:Confirmation Transfer Ref_MT103_0023456891099200301019898.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:471'552 bytes
First seen:2022-05-26 09:27:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 6144:wNHB4fuqlaqMfD7w/79khCD1gPjxJvbE0OJAi8UiIcN7KnRHvYPJcfWJRU9EAmg+:wNH22qla5w/yXbx1M8UZM1JyEAmD
Threatray 16'242 similar samples on MalwareBazaar
TLSH T157A4C061FB068A98DC190A734DBB972027125F9984BBD31F64D73E2FB9733832C51899
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 68d8d8c8d9a9c1d9 (96 x SnakeKeylogger, 67 x RemcosRAT, 66 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
328
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Confirmation Transfer Ref_MT103_0023456891099200301019898.exe
Verdict:
Malicious activity
Analysis date:
2022-05-26 09:34:04 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/d12caf3f-67f9-41c8-a46a-a7a4a7f85c9a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/274703/
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
Create hunting rule

Win.Trojan.EmbeddedReversedDLL-9940922-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
Link:
https://www.filescan.io/uploads/628f48246eb3ff32632f951f/reports/d66910b3-ff94-4c85-a5aa-220347775524/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/58367024-e789-45d8-9734-3995d1983683
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1002035
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Drops executable to a common third party application directory
Found malware configuration
Injects a PE file into a foreign processes
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 634532 Sample: Confirmation Transfer Ref_M... Startdate: 26/05/2022 Architecture: WINDOWS Score: 100 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus detection for dropped file 2->65 67 10 other signatures 2->67 10 Confirmation Transfer Ref_MT103_0023456891099200301019898.exe 1 4 2->10         started        process3 file4 55 C:\Users\user\AppData\Roaming\...\firefox.exe, PE32 10->55 dropped 57 C:\Users\user\...\firefox.exe:Zone.Identifier, ASCII 10->57 dropped 59 Confirmation Trans...00301019898.exe.log, ASCII 10->59 dropped 75 Drops executable to a common third party application directory 10->75 77 Injects a PE file into a foreign processes 10->77 14 Confirmation Transfer Ref_MT103_0023456891099200301019898.exe 10->14         started        17 cmd.exe 1 10->17         started        19 Confirmation Transfer Ref_MT103_0023456891099200301019898.exe 10->19         started        signatures5 process6 signatures7 83 Modifies the context of a thread in another process (thread injection) 14->83 85 Maps a DLL or memory area into another process 14->85 87 Queues an APC in another process (thread injection) 14->87 21 explorer.exe 2 14->21 injected 23 conhost.exe 17->23         started        25 timeout.exe 1 17->25         started        process8 process9 27 firefox.exe 2 21->27         started        30 firefox.exe 1 21->30         started        32 cmstp.exe 21->32         started        34 chkdsk.exe 21->34         started        signatures10 79 Injects a PE file into a foreign processes 27->79 36 firefox.exe 27->36         started        39 cmd.exe 1 27->39         started        41 firefox.exe 30->41         started        43 cmd.exe 1 30->43         started        81 Tries to detect virtualization through RDTSC time measurements 32->81 45 cmd.exe 32->45         started        process11 signatures12 69 Modifies the context of a thread in another process (thread injection) 36->69 71 Maps a DLL or memory area into another process 36->71 73 Sample uses process hollowing technique 36->73 47 conhost.exe 39->47         started        49 timeout.exe 1 39->49         started        51 conhost.exe 43->51         started        53 timeout.exe 1 43->53         started        process13
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fc8dedb234d17ae5d5e58eaf372988114b82bd1a9defe9934e8d7738e15a88ab/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-26 09:08:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7sg63mru2f5olvpfr2xtokmicffyfpi2txx6te2orv3tryk2rcvq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
002ea0849da3c63ce6c09c084567e9470c3616084ef19402316e9d52f35c62a7
Formbook
2da5d0fab4e517de649c1116c62b23202b6d4b46a99f1aa05d44d345d280ca10
Formbook
2fce5c6cd34933c0811963c7333c9ba463632ef7ba87f7140686f833b8cb8a6a
Formbook
46956dd9cd5e3f62c79127e5e8bcd3b420695a0112df256aa07364bc6a32e697
Formbook
54d3a5ab9cf83b63a50a382b1f3fe4f2bdc03620744b9ecdee74723415fccd9d
Formbook
64432a60f19aa2b6365f98fd236200b873770c59e66bf3f25d21c4974f565a65
Formbook
6eef88d9b2ada286ff5f0ee740bd12a593a6111f2e29e0b86cc43dc437701edf
Formbook
6f0508408689f77795e27f5320115355744c6b7d02cf59197dae8646bc73f267
Formbook
895ef47b4da61470f4ba9c87d131b1f74adfea16dd6162e5bca0eee391d0a6f4
Formbook
dd39f14948021a7f17de30d38f334142b9f7c26c2fffb174f689bccddce94b29
Formbook
+ 16'232 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:arna loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220526-leqzdaabb7/
Behaviour
Delays execution with timeout.exe
Modifies Internet Explorer settings
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Reads user/profile data of web browsers
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
4382964f3cb0872d5dbacad3a207cabfaa07e384dc4a2822ba8e6ee0e8d1b5a5
MD5 hash:
9d67629b5f1658932972f413902d3da0
SHA1 hash:
35d666afee9500fa07d909c1fad3048b1c1c5f2b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1ad7250e-3676-41a1-99c2-2b11141d3383/
SH256 hash:
4903465118472a677c676b5c4d61732d1c8164f169c7fa3f3e9df8d8b2cea19f
MD5 hash:
6f5690ac2938757a4d64bd8996396aa5
SHA1 hash:
24b6db4a026338ba1cbbfa895603fb2f02639b37
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/1ad7250e-3676-41a1-99c2-2b11141d3383/
SH256 hash:
57e9cd6ae30054feb0c7bc412273ce041701329a790d61b333cc5fc10f92fbba
MD5 hash:
b042b94a4fa04cb7c60870f79a74b968
SHA1 hash:
7c02b75ce536e6b82367610aeeda1bc77035b04e
Link:
https://www.unpac.me/results/1ad7250e-3676-41a1-99c2-2b11141d3383/
SH256 hash:
2dff1e32a041995cecfb8707c99b52cc1d3916f92f89736880d08b0597248ce6
MD5 hash:
06b26aded67c25967c5b2ae2330a74b7
SHA1 hash:
183f4191e8723c2922e1a85247f37d3090136c39
Link:
https://www.unpac.me/results/1ad7250e-3676-41a1-99c2-2b11141d3383/
SH256 hash:
fc8dedb234d17ae5d5e58eaf372988114b82bd1a9defe9934e8d7738e15a88ab
MD5 hash:
3400578649e2a279e6c7cdf89fbb583c
SHA1 hash:
7a0a5f4712f0dc9a6e422406b905b5137421dd6c
Link:
https://www.unpac.me/results/1ad7250e-3676-41a1-99c2-2b11141d3383/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fc8dedb234d1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
Link:
https://yomi.yoroi.company/submissions/fc8dedb234d17ae5d5e58eaf372988114b82bd1a9defe9934e8d7738e15a88ab

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
Rule name:SUSP_Reverse_DOS_header
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects an reversed DOS header
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Malspam

Formbook

Executable exe fc8dedb234d17ae5d5e58eaf372988114b82bd1a9defe9934e8d7738e15a88ab

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/274703/

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