MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27cad802a32ea893bce26ae89b2c77825d4ece889932addbcb922ff2c3d73425. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27cad802a32ea893bce26ae89b2c77825d4ece889932addbcb922ff2c3d73425
SHA3-384 hash: 7bb18f4fd397b3d17c7a32d51df941ff9bab3a70e0534a0375822c39e1cd02c0f99685cd1158127fba2d5031fefe401f
SHA1 hash: 55160185c61347dbcaf4577f14f991d628c2ecf3
MD5 hash: dd5c7e917f28bbe04bb177571eadb4b6
humanhash: maine-north-mexico-maine
File name:dd5c7e917f28bbe04bb177571eadb4b6
Download: download sample
Signature Formbook
Create hunting rule
File size:884'224 bytes
First seen:2021-09-02 14:16:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1407e2d87d7efca6bd106fef3862efae (3 x NetWire, 2 x Formbook, 2 x RemcosRAT)
ssdeep 12288:K1+UzwWLYx9/EISfjI3916W3WOsA0QLEkpwaGKqa/yv1pKQcj2VncY:+BfYx9tGjI39DmOs5KTGKqXv7cSc
Threatray 7'677 similar samples on MalwareBazaar
TLSH T16715AE79D2C1D633D81757B82CBF83698E743F15246EBC4967E23EEC8E712846422A53
dhash icon 0f4cceadcc16694d (8 x RemcosRAT, 5 x NetWire, 5 x DBatLoader)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
263
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice-7680865.cab
Verdict:
Malicious activity
Analysis date:
2021-09-02 13:11:46 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/d87f02de-f596-4811-9286-e5844e345f54

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/184815/
Detection(s):
PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Sending a UDP request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ab85bf7e-83dd-48b3-96a8-59cf1e27e4d3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844092
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Creates multiple autostart registry keys
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)
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: Execution from Suspicious Folder
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 476527 Sample: txIYZsS4BG Startdate: 02/09/2021 Architecture: WINDOWS Score: 100 55 www.sourcefirstconsulting.com 2->55 83 Malicious sample detected (through community Yara rule) 2->83 85 Multi AV Scanner detection for submitted file 2->85 87 Yara detected FormBook 2->87 89 2 other signatures 2->89 10 txIYZsS4BG.exe 1 22 2->10         started        signatures3 process4 dnsIp5 75 onedrive.live.com 10->75 77 bn-files.fe.1drv.com 10->77 79 acgxog.bn.files.1drv.com 10->79 53 C:\Users\Public\Libraries\...\Skxlgyf.exe, PE32 10->53 dropped 111 Creates multiple autostart registry keys 10->111 113 Writes to foreign memory regions 10->113 115 Allocates memory in foreign processes 10->115 117 2 other signatures 10->117 15 ieinstal.exe 10->15         started        18 cmd.exe 1 10->18         started        20 cmd.exe 1 10->20         started        file6 signatures7 process8 signatures9 119 Modifies the context of a thread in another process (thread injection) 15->119 121 Maps a DLL or memory area into another process 15->121 123 Sample uses process hollowing technique 15->123 125 Queues an APC in another process (thread injection) 15->125 22 explorer.exe 2 2 15->22 injected 26 reg.exe 1 18->26         started        28 conhost.exe 18->28         started        30 cmd.exe 1 20->30         started        32 conhost.exe 20->32         started        process10 dnsIp11 69 drgigadvisors.com 216.239.34.21, 49733, 80 GOOGLEUS United States 22->69 71 neocleanpro.com 34.102.136.180, 49734, 49735, 80 GOOGLEUS United States 22->71 73 6 other IPs or domains 22->73 109 System process connects to network (likely due to code injection or exploit) 22->109 34 Skxlgyf.exe 15 22->34         started        38 Skxlgyf.exe 15 22->38         started        40 chkdsk.exe 1 22->40         started        46 2 other processes 22->46 42 conhost.exe 26->42         started        44 conhost.exe 30->44         started        signatures12 process13 dnsIp14 57 onedrive.live.com 34->57 59 bn-files.fe.1drv.com 34->59 61 acgxog.bn.files.1drv.com 34->61 91 Multi AV Scanner detection for dropped file 34->91 93 Writes to foreign memory regions 34->93 95 Allocates memory in foreign processes 34->95 48 logagent.exe 34->48         started        63 onedrive.live.com 38->63 65 bn-files.fe.1drv.com 38->65 67 acgxog.bn.files.1drv.com 38->67 97 Creates a thread in another existing process (thread injection) 38->97 99 Injects a PE file into a foreign processes 38->99 51 ieinstal.exe 38->51         started        101 Creates multiple autostart registry keys 40->101 103 Modifies the context of a thread in another process (thread injection) 40->103 105 Maps a DLL or memory area into another process 40->105 107 Tries to detect virtualization through RDTSC time measurements 40->107 signatures15 process16 signatures17 81 Tries to detect virtualization through RDTSC time measurements 48->81
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/27cad802a32ea893bce26ae89b2c77825d4ece889932addbcb922ff2c3d73425/
Threat name:
Win32.Trojan.Zusy
Create hunting rule
Status:
Malicious
First seen:
2021-09-02 14:08:06 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e7fnqavdf2ujhphcnlujwldxqjou5tuitezk3w6lsix7fq6xgqsq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3afb8f6f86741e036ed7ee941f4875344c2b384d6e9d21c85755bfbce63ee473
Formbook
4d345d3e9341f12df8e933686d66efde41d0ba682e67b8a3d23064b35b400429
Formbook
74c184d9e5658494b42b413566966b5c54d668aa3dd7631df6d7252c0bcdad03
Formbook
a9010421ea97c10ab6147e6c5077fab296030b13c26b6645502b6165e2e9d4db
Formbook
d71677cc4b276a3ecc1de38281a1d88410be241c11422b2b55147bede496355a
Formbook
dd4114ea355d3f70e7683fb8491e2499347b6133bd9ef6d094a0cb6ad8aa4609
Formbook
e85ecd006f87b6e19f200e637cf0430caa02f0af5e58d68437f270668a7fed59
Formbook
ebe1f420ea3fcef5b426cf6458d23984e12c4ceb5983571699f60aaa963b159a
Formbook
+ 7'667 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:xloader campaign:ecuu loader persistence rat trojan
Link:
https://tria.ge/reports/210902-rlrr5sacd8/
Behaviour
Gathers network information
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Adds policy Run key to start application
Xloader Payload
ModiLoader, DBatLoader
Xloader
Malware Config
C2 Extraction:
http://www.polaritelibrairie.com/ecuu/
Unpacked files
SH256 hash:
4e1202f3e7e04b0b3ca1df164bf5381f24063c142317e774d4e5d88b2b3ac744
MD5 hash:
aa23dee2c34813d67fe9c67ec784782a
SHA1 hash:
10b2e7af7cb9d6f852e6d607875a8c9613538930
Link:
https://www.unpac.me/results/febe86f7-5062-47c4-890b-7c0f596e115b/
SH256 hash:
27cad802a32ea893bce26ae89b2c77825d4ece889932addbcb922ff2c3d73425
MD5 hash:
dd5c7e917f28bbe04bb177571eadb4b6
SHA1 hash:
55160185c61347dbcaf4577f14f991d628c2ecf3
Link:
https://www.unpac.me/results/febe86f7-5062-47c4-890b-7c0f596e115b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/27cad802a32e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/27cad802a32ea893bce26ae89b2c77825d4ece889932addbcb922ff2c3d73425

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_EXE_UACBypass_EnvVarScheduledTasks
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
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: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.

Web download

Formbook

Executable exe 27cad802a32ea893bce26ae89b2c77825d4ece889932addbcb922ff2c3d73425

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1586166/
Cape
Cape
https://www.capesandbox.com/analysis/184815/

Comments


Avatar
zbet commented on 2021-09-02 14:16:28 UTC

url : hxxp://198.46.199.203/wdc/vbc.exe