MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd
SHA3-384 hash: 5d168bbb1e6e772948fb4313e4d4bbb0aa429779c34a73fa81a0d7ab7a337435b8317c1063b418ba19c0eedfd72400c7
SHA1 hash: 2538f96fad951489cd9bb84f9b76b107ea70eaa5
MD5 hash: ce20bd8f40f78da603dd17d756745b0a
humanhash: carolina-michigan-winner-fifteen
File name:ibefrankszx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:624'640 bytes
First seen:2021-09-29 13:51:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:kzqzgNi+hBr7IUAYpHOSpUeR7/UbuxaWsbkUb+3tkvfY:kvNi+hBr8UAGFBVUbuoWsbkUmgfY
Threatray 9'723 similar samples on MalwareBazaar
TLSH T1D3D4ADDE1EB457CBFB4E01F8F678278813BA9024E65BF2C6DA45B0B351327584920ED6
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
133
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO.doc
Verdict:
Malicious activity
Analysis date:
2021-09-28 09:39:04 UTC
Tags:
exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/c75598e7-cd01-4eb4-bb61-1e5700860e4a

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/193196/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1048-1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Scr.Malcodegdn30.14006.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
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e1cf4ed0-f51f-49dc-92e0-37fd56a03e40
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/861379
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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 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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 493809 Sample: ibefrankszx.exe Startdate: 30/09/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 6 other signatures 2->44 10 ibefrankszx.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\ibefrankszx.exe.log, ASCII 10->30 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 14 ibefrankszx.exe 10->14         started        17 ibefrankszx.exe 10->17         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 19 explorer.exe 14->19 injected process8 dnsIp9 32 suamui.net 112.78.2.22, 49795, 80 ODS-AS-VNOnlinedataservicesVN Viet Nam 19->32 34 fishguano.com 34.102.136.180, 49797, 80 GOOGLEUS United States 19->34 36 3 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 msiexec.exe 19->23         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 23->48 50 Modifies the context of a thread in another process (thread injection) 23->50 52 Maps a DLL or memory area into another process 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-28 07:49:28 UTC
AV detection:
28 of 45 (62.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=naezhyjcbsgzddyzflrdyxabwy2xywfnnc34ywp2ciwatn5yltoq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1758a9b18032ce82f4e95249413ee1a8cbade1ef2cb773bc958502801f3af738
Formbook
49d82a6b19fe35893b419696bace48db225826ccfa73da61ca22f59f7f045406
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223
Formbook
67cb5ce28fc7e9a5dae6c7be6da453844762fdea43d985cfc761c1ded66487f0
Formbook
7162b4c9de1772aa721d26d185fd1b7e32a9de5c6ebfd86cab3ef0ed7561a837
Formbook
99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c
Formbook
9d503fba930fcf9724778a17659948875302b2fc7148c82779c29dfc18fb8cc3
Formbook
c63cb761da677849b8382eb1d926569f00a04d57f2c789b63e7f2eb2e368a00c
Formbook
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
Formbook
+ 9'713 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:if60 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210929-q6dwcafbhq/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.handelsbetriebposavec.com/if60/
Unpacked files
SH256 hash:
ade224c5af46b5e0b4a3650a5544b20e9dad7e6fa5aeeac0037e05d83fdcb177
MD5 hash:
42ae73cdadc87e07cc5e94668c52eb8e
SHA1 hash:
d1882744abbca9ac468f23867a264a5a2a49743f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c40157e6-2cdd-479f-ab6e-77ecd26c9d0f/
Parent samples :
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
7162b4c9de1772aa721d26d185fd1b7e32a9de5c6ebfd86cab3ef0ed7561a837
99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c
49d82a6b19fe35893b419696bace48db225826ccfa73da61ca22f59f7f045406
1758a9b18032ce82f4e95249413ee1a8cbade1ef2cb773bc958502801f3af738
581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223
680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd
SH256 hash:
19bf018348685807364cc06fed8806cd45780e477a3b2ccfb033cb6810a140de
MD5 hash:
888164acb2b3d3322277d07634c698f0
SHA1 hash:
4bdcf576ae2b4fd8df31bdc45fa49d532e15821d
Link:
https://www.unpac.me/results/c40157e6-2cdd-479f-ab6e-77ecd26c9d0f/
SH256 hash:
8d82d6d8443d66f0e7ea5e00c00fe25f32d5467b1ce16131a9fabf3b675df86e
MD5 hash:
5b89cad4c74cba32784d87a6df710032
SHA1 hash:
2ad5da98029e89d91a2f08e0380849638f16a7b6
Link:
https://www.unpac.me/results/c40157e6-2cdd-479f-ab6e-77ecd26c9d0f/
SH256 hash:
6a671abf66304301602b4afd0902840bc3915455cffc58d8916eaa693abe33ec
MD5 hash:
681eca96e4e7b513317178dc7065ef39
SHA1 hash:
24af82015bc57d125f1ccb759840118b2283d1dc
Link:
https://www.unpac.me/results/c40157e6-2cdd-479f-ab6e-77ecd26c9d0f/
SH256 hash:
680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd
MD5 hash:
ce20bd8f40f78da603dd17d756745b0a
SHA1 hash:
2538f96fad951489cd9bb84f9b76b107ea70eaa5
Link:
https://www.unpac.me/results/c40157e6-2cdd-479f-ab6e-77ecd26c9d0f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
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
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

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/193196/

Comments