MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 166559731ad15341f955bf8a16708f93542bef868c33f02f70e9b27f57b991a3. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 166559731ad15341f955bf8a16708f93542bef868c33f02f70e9b27f57b991a3
SHA3-384 hash: bb8605ae4fb669a13fe4c4173f5d256b834aa00168ecb37d5f3bcbf9554048dcab11e16248179fd5a44df4ccee1babb6
SHA1 hash: 07fa4692aa15a409091bc6190bf33b5942db99e6
MD5 hash: 0eca879131a7b104418b085db7f761c3
humanhash: magnesium-twenty-lamp-mexico
File name:0eca879131a7b104418b085db7f761c3
Download: download sample
Signature Formbook
Create hunting rule
File size:626'688 bytes
First seen:2021-09-27 15:29:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:BB6AGIF/OXu5OtiBIZzG/NoC9NPNIQt5XyGY0:JGIF3wOI5G1oCXPzTVY
Threatray 9'686 similar samples on MalwareBazaar
TLSH T1EFD4CF28B27C8A1FC6EF87BAF055001887F1F68B734DD7898E8170ED69E9B359542487
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
162
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RPM.xlsx
Verdict:
Malicious activity
Analysis date:
2021-09-27 13:09:53 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/d87ad86c-0884-4981-8794-31c07b8bbad1

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/192179/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1048.12008.4418.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/8dc39c39-b90a-46ab-a015-7c3d473c3612
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/859140
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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: 491574 Sample: 3cGH9Bakuq Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected AntiVM3 2->44 46 4 other signatures 2->46 10 3cGH9Bakuq.exe 3 2->10         started        process3 file4 32 C:\Users\user\AppData\...\3cGH9Bakuq.exe.log, ASCII 10->32 dropped 58 Tries to detect virtualization through RDTSC time measurements 10->58 60 Injects a PE file into a foreign processes 10->60 14 3cGH9Bakuq.exe 10->14         started        17 3cGH9Bakuq.exe 10->17         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 19 explorer.exe 14->19 injected process8 dnsIp9 34 www.rangerbuddys.com 103.11.189.189, 49807, 80 VODIEN-AS-AP-LOC2VodienInternetSolutionsPteLtdSG Singapore 19->34 36 www.vetpipes.com 104.143.9.211, 49804, 80 VIVIDHOSTINGUS United States 19->36 38 5 other IPs or domains 19->38 48 System process connects to network (likely due to code injection or exploit) 19->48 23 colorcpl.exe 19->23         started        26 autofmt.exe 19->26         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 23->50 52 Modifies the context of a thread in another process (thread injection) 23->52 54 Maps a DLL or memory area into another process 23->54 56 Tries to detect virtualization through RDTSC time measurements 23->56 28 cmd.exe 1 23->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/166559731ad15341f955bf8a16708f93542bef868c33f02f70e9b27f57b991a3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-27 15:06:33 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1076b9efbc0e135c85f1228253f9a1d2f35f4fd49c70d290de72808f72bd56eb
Formbook
2fc82f206abb0d6d6b4d7a916be93b408ab78f848531917b3968b066a5a31023
Formbook
326a1e669385d8e241375e9eca9f915440f1d0d3f803e6d1648f30102cbedaa6
Formbook
45f5e2a682896ac3380522e26a0398b8112bafc42948666c9fecafa3dcab69e3
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
774c08451198a951fa73f9859b5e48c12c5df9214759e4717e56d92fb4c09d1e
Formbook
7b4c1bf9a15a419080fe02866aa26f162f79d5e01763c6af5915b07988556223
Formbook
84236953e6059c7733ecd777604a225ee85dc96740a46aac1379d13b3d57630d
Formbook
c4c9d27ea805c32e7f0e66dc0d9534d8fbd87f4c1327727b2e1e9ae937f02c45
Formbook
+ 9'676 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:scb0 loader rat
Link:
https://tria.ge/reports/210927-sxjfkshda3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.vetpipes.com/scb0/
Unpacked files
SH256 hash:
6242485a3c1c93aecc64bf33b5f99f14b67336dcfc8f96a5bba8147557d64440
MD5 hash:
60f645f8dc5fbe5b1c256318232d7ce7
SHA1 hash:
4c9d879bf07a222e9b957b847d9cffa08904acb7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/66fd8b95-0f46-46a3-bbd6-5d395e9e43dd/
Parent samples :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 hash:
097ca5f88765a111b17f8912c9ed01baa38db3d6ebaab61dfd307909c0bfb6fb
MD5 hash:
4d576685665a4e808cf26883fa25acdf
SHA1 hash:
d69a814b8ce4c9c0f6e1d494b1dcf645d39bc289
Link:
https://www.unpac.me/results/66fd8b95-0f46-46a3-bbd6-5d395e9e43dd/
SH256 hash:
1995648264eb0446c3a0c629d8c1f04bf9e578ba72279791655dc447f3402f78
MD5 hash:
f96fb9e436345cb250ac390d9c6aa410
SHA1 hash:
8173fa7cc8e0b0ca3a643464850c847492f53151
Link:
https://www.unpac.me/results/66fd8b95-0f46-46a3-bbd6-5d395e9e43dd/
SH256 hash:
1396d0d14aedfd45ff68d105e80a7e0ad07477bea946785c023bda1559fc5fc3
MD5 hash:
aadb56203ad6e2e7e658c879caa9a2cf
SHA1 hash:
561e24e927476b16899fecd2cd0ece4c372eab36
Link:
https://www.unpac.me/results/66fd8b95-0f46-46a3-bbd6-5d395e9e43dd/
SH256 hash:
166559731ad15341f955bf8a16708f93542bef868c33f02f70e9b27f57b991a3
MD5 hash:
0eca879131a7b104418b085db7f761c3
SHA1 hash:
07fa4692aa15a409091bc6190bf33b5942db99e6
Link:
https://www.unpac.me/results/66fd8b95-0f46-46a3-bbd6-5d395e9e43dd/
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/166559731ad15341f955bf8a16708f93542bef868c33f02f70e9b27f57b991a3

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 166559731ad15341f955bf8a16708f93542bef868c33f02f70e9b27f57b991a3

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/192179/
  
URLhaus
https://urlhaus.abuse.ch/url/1645547/

Comments


Avatar
zbet commented on 2021-09-27 15:29:13 UTC

url : hxxp://23.95.13.176/rpm/vbc.exe