MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ec89e73e39d8f49eb7af879ca10a3b172a155b50cffd2e98dd4826c4284fd49. 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 4 File information Comments

SHA256 hash: 3ec89e73e39d8f49eb7af879ca10a3b172a155b50cffd2e98dd4826c4284fd49
SHA3-384 hash: 0e37db11c689606c5721dfffc17cee85e391a6474c21944f1d8f0b7d8ebf4475e18964bec7c154afc4e841225d7b42c4
SHA1 hash: bc54825a19559e26cae3aad8b31e09a5011621e6
MD5 hash: d5f7c9a6eaf432859d3abdf751d465ad
humanhash: oklahoma-table-xray-sierra
File name:rtgs_pdf.exe
Download: download sample
Signature Formbook
File size:550'599 bytes
First seen:2021-06-07 12:04:13 UTC
Last seen:2021-06-07 12:43:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 06e25a5c5380296dff069bb2c5e3bf3f (1 x Formbook)
ssdeep 6144:28cKwfV8SDQ1xrlnBFq+jdkRw2XMAuUipuCsyuX2xooVhUP:29f9DQ1VlnBcwkewXqcyuX2heP
Threatray 5'802 similar samples on MalwareBazaar
TLSH BCC4D5035F0CA0B4EAE35CB1AAE399AE5E25B5274C095F4731E2BB981631F03EC9751D
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rtgs_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-06-07 12:05:56 UTC
Tags:
trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Generic Dropper
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 430451 Sample: rtgs_pdf.exe Startdate: 07/06/2021 Architecture: WINDOWS Score: 100 35 www.royalprinceghana.com 2->35 37 royalprinceghana.com 2->37 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 6 other signatures 2->49 11 rtgs_pdf.exe 9 2->11         started        signatures3 process4 signatures5 57 Tries to detect virtualization through RDTSC time measurements 11->57 14 rtgs_pdf.exe 11->14         started        process6 signatures7 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 Queues an APC in another process (thread injection) 14->65 17 explorer.exe 14->17 injected process8 dnsIp9 29 www.workslides.com 103.44.89.157, 49713, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS China 17->29 31 www.bobdj99.com 91.195.240.94, 49722, 80 SEDO-ASDE Germany 17->31 33 16 other IPs or domains 17->33 41 System process connects to network (likely due to code injection or exploit) 17->41 21 control.exe 12 17->21         started        signatures10 process11 dnsIp12 39 www.fabvegantravel.com 21->39 51 Modifies the context of a thread in another process (thread injection) 21->51 53 Maps a DLL or memory area into another process 21->53 55 Tries to detect virtualization through RDTSC time measurements 21->55 25 cmd.exe 1 21->25         started        signatures13 process14 process15 27 conhost.exe 25->27         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2021-06-04 03:27:45 UTC
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader loader rat
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 SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.fabvegantravel.com/uecu/
Unpacked files
SH256 hash:
d71d2b821b6470caee60e41868a5d6f606c55fd43faaa648e014b5f6cc8731d9
MD5 hash:
8f013196b5c8203f8ad3257ded422322
SHA1 hash:
ae6b0c29744e65629293b3a7b8e74d994c4a1600
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
3ec89e73e39d8f49eb7af879ca10a3b172a155b50cffd2e98dd4826c4284fd49
MD5 hash:
d5f7c9a6eaf432859d3abdf751d465ad
SHA1 hash:
bc54825a19559e26cae3aad8b31e09a5011621e6
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Author:Slavo Greminger, SWITCH-CERT

File information


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

Malspam

Formbook

Executable exe 3ec89e73e39d8f49eb7af879ca10a3b172a155b50cffd2e98dd4826c4284fd49

(this sample)

  
Delivery method
Distributed via e-mail attachment

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