MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 990a8fa7e96d2cd90b09ab39794df984bc153d0dcd390afbca19a42b689d4e7d. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 990a8fa7e96d2cd90b09ab39794df984bc153d0dcd390afbca19a42b689d4e7d
SHA3-384 hash: 1a414e0730999f17eada4182c1e9f9bb600ea9f6f3c72acf5bf270d7aa84c6472f98a8bbdf070b700b4dda4c99c123a4
SHA1 hash: ed9fb1d769fd4655a335884d26875758fe67433c
MD5 hash: 62c72f781d7001dff6d747ee91e33e32
humanhash: skylark-tango-nineteen-nevada
File name:62c72f781d7001dff6d747ee91e33e32.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:268'887 bytes
First seen:2021-09-23 06:22:39 UTC
Last seen:2021-09-23 07:23:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:F8LxBsHikpzi4kWTMijdKkP0lnp5GMoNa5QXk://pGgAo8p5GMoWIk
Threatray 9'639 similar samples on MalwareBazaar
TLSH T109441222BA90EDA7D61293B05BF79DB8FBF8D704129163070BA81D373C616C3064D78A
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL_Sender_Documents_Details_021230900.xlsx
Verdict:
Malicious activity
Analysis date:
2021-09-23 06:16:59 UTC
Tags:
encrypted trojan exploit CVE-2017-11882 opendir loader formbook stealer
Link:
https://app.any.run/tasks/004583e9-b7d1-4ba3-b12d-8d4dd45ba0fe

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/190505/
Detection(s):
SecuriteInfo.com.Zum.Androm.1.894.29998.UNOFFICIAL
Create hunting rule

Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b40fc7f-caf3-4bc9-9a13-49aafbf20396
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/856451
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Injects a PE file into a foreign processes
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
Performs DNS queries to domains with low reputation
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 488971 Sample: SYsObQNkC1.exe Startdate: 23/09/2021 Architecture: WINDOWS Score: 100 31 www.keenflat.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 6 other signatures 2->45 11 SYsObQNkC1.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\ojcwnasg.dll, PE32 11->29 dropped 59 Detected unpacking (changes PE section rights) 11->59 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 SYsObQNkC1.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.retreatreflectreplenish.com 41.203.18.177, 49800, 80 xneeloZA South Africa 18->33 35 mrbrianalba.com 192.185.131.134, 49816, 80 UNIFIEDLAYER-AS-1US United States 18->35 37 12 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Performs DNS queries to domains with low reputation 18->49 22 WWAHost.exe 18->22         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/990a8fa7e96d2cd90b09ab39794df984bc153d0dcd390afbca19a42b689d4e7d/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-09-23 06:23:07 UTC
AV detection:
17 of 44 (38.64%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1771bccdd4c4fdc7d50d97ac10e5b1e0f980a4ff31233c59e9cfa17e9cd36a24
Formbook
2fc82f206abb0d6d6b4d7a916be93b408ab78f848531917b3968b066a5a31023
Formbook
3ac2da7ec8b0c46550c9b85707c4743ea4cacbb5bb6ee0fd159792f3978e3ad3
Formbook
40da3a76d7dfbe395b879dc9b090af73483617c65c7c433975490c0a22e4a71a
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
64c00be3d0bc5f000ee6d2d6d49e72c9e9f36090f19b7f9620ff0993a0e84025
Formbook
66eaa86ebfd9a80f623d9ca307e0ba4374c56a0af202ab0833d082f92dd101a4
Formbook
8a95ac711537aeb1c93c61e541077005f5226e4150c2669742d1b612cfc25788
Formbook
b32448dbeec13e1eb23e55a57ffc06f9dfc8fd44687e19fc0be1c4fbabc10abb
Formbook
ea12191fcd49d36b68be2c466a24cac87cfd79f9d1fb18ef252037f0fb976979
Formbook
+ 9'629 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:m0np loader rat
Link:
https://tria.ge/reports/210923-g5gfeafbb4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.devmedicalcentre.com/m0np/
Unpacked files
SH256 hash:
f4e1ce66224132eb8173116f47d39380c06e0f5758251e7b35bad6f630b573d4
MD5 hash:
ef7eaf0da4de4d661b5d15c16dc09b45
SHA1 hash:
27bc4729f90be02fb496bcd4167f545ad9d0e892
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/71659041-307b-481f-b8b2-3c959c50b6d3/
Parent samples :
b32448dbeec13e1eb23e55a57ffc06f9dfc8fd44687e19fc0be1c4fbabc10abb
8a95ac711537aeb1c93c61e541077005f5226e4150c2669742d1b612cfc25788
64c00be3d0bc5f000ee6d2d6d49e72c9e9f36090f19b7f9620ff0993a0e84025
990a8fa7e96d2cd90b09ab39794df984bc153d0dcd390afbca19a42b689d4e7d
cf3038247c7a2a5779f655fdf594bdad56b22d198b6edb1c3197b84d9c4f153a
SH256 hash:
5d47923e78cb8ebf65ef8a9d56ed8d69686106468d95b0a9dddbf18d9deeca26
MD5 hash:
aaf5451e8fda48fc507a40c04971b4fa
SHA1 hash:
4495f5b40a6058371d2d026c94ca6e7682cf0728
Link:
https://www.unpac.me/results/71659041-307b-481f-b8b2-3c959c50b6d3/
SH256 hash:
990a8fa7e96d2cd90b09ab39794df984bc153d0dcd390afbca19a42b689d4e7d
MD5 hash:
62c72f781d7001dff6d747ee91e33e32
SHA1 hash:
ed9fb1d769fd4655a335884d26875758fe67433c
Link:
https://www.unpac.me/results/71659041-307b-481f-b8b2-3c959c50b6d3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/990a8fa7e96d2cd90b09ab39794df984bc153d0dcd390afbca19a42b689d4e7d

File information

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

Web download

Formbook

Executable exe 990a8fa7e96d2cd90b09ab39794df984bc153d0dcd390afbca19a42b689d4e7d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1562681/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/190505/

Comments