MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f42f68bc67c97ebf181c31e7c243eee3580ebc75bb2a277f1847ea2bcedecc3. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5f42f68bc67c97ebf181c31e7c243eee3580ebc75bb2a277f1847ea2bcedecc3
SHA3-384 hash: 1414f09ee62ab22d1794b7567f8f04897c0760d1db93f170a7932834c3c00c123f707862c81433aac23127df4bc8c22f
SHA1 hash: f51bc95c98e3c201182403bc8e6fa39256f90220
MD5 hash: aed013a0fa9eb5298f703977eccc3589
humanhash: oranges-charlie-orange-sweet
File name:aed013a0fa9eb5298f703977eccc3589.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'825'280 bytes
First seen:2021-01-29 08:43:45 UTC
Last seen:2021-01-29 10:54:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 1536:gNnu7JExfh8esuZ3dIr+ucIQnS6qJrk9kHYfzydEjqBTaHgI:QvxfhR++/3S5Q9kHYTga
Threatray 3'666 similar samples on MalwareBazaar
TLSH 2385F0259DAF6325D833274C27411C591F042F69A3EE42A301BBAB28FF07D855F59EB8
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
117
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
aed013a0fa9eb5298f703977eccc3589.exe
Verdict:
Malicious activity
Analysis date:
2021-01-29 08:44:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/02d98abf-ce62-4014-a584-d2ccfcac3f72

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/114669/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.36253912.11123.4213.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Sending a UDP request
Launching a process
Unauthorized injection to a recently created process
Adding an access-denied ACE
Launching the default Windows debugger (dwwin.exe)
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/593680
Signature
Found malware configuration
Hides threads from debuggers
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)
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
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 signatures2 2 Behavior Graph ID: 345880 Sample: d3YVxiHt5J.exe Startdate: 29/01/2021 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 3 other signatures 2->61 10 d3YVxiHt5J.exe 3 2->10         started        process3 signatures4 65 Tries to detect virtualization through RDTSC time measurements 10->65 67 Hides threads from debuggers 10->67 13 d3YVxiHt5J.exe 10->13         started        16 WerFault.exe 23 9 10->16         started        20 cmd.exe 1 10->20         started        22 d3YVxiHt5J.exe 10->22         started        process5 dnsIp6 69 Modifies the context of a thread in another process (thread injection) 13->69 71 Maps a DLL or memory area into another process 13->71 73 Sample uses process hollowing technique 13->73 75 Queues an APC in another process (thread injection) 13->75 24 explorer.exe 13->24 injected 41 192.168.2.1 unknown unknown 16->41 39 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 16->39 dropped 28 conhost.exe 20->28         started        30 timeout.exe 1 20->30         started        file7 signatures8 process9 dnsIp10 43 theemythstartup.com 34.102.136.180, 49742, 80 GOOGLEUS United States 24->43 45 www.sadarbarta.com 164.88.153.167, 49736, 80 CLAYERLIMITED-AS-APClayerLimitedHK South Africa 24->45 47 6 other IPs or domains 24->47 63 System process connects to network (likely due to code injection or exploit) 24->63 32 rundll32.exe 24->32         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 32->49 51 Maps a DLL or memory area into another process 32->51 53 Tries to detect virtualization through RDTSC time measurements 32->53 35 cmd.exe 1 32->35         started        process14 process15 37 conhost.exe 35->37         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5f42f68bc67c97ebf181c31e7c243eee3580ebc75bb2a277f1847ea2bcedecc3/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-01-27 08:50:29 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
14ee2894b546ba6d7835ee4dd8e07ef72fb10bfaebec8f1687da4559267cb72e
Formbook
25cd952df9c74033229ec91a5da330e392390ca6120db46d9ab21d3120c9011c
Formbook
2d14644ecb7e3d6a7f6e2c8888ecda848a2a9dbf30dd534c5aa531a5c4bcef2e
Formbook
2fd6b2288864f3a099a32bd923f7b3c67db00c979aa2e46db125e104618e92b7
Formbook
7139fbd600738d2f456c7f11ae105e45ab0bb6e14a473ae0e68391b8125da393
Formbook
a8f4da2076bc00264891bc7872e70f245f47807c268fb921fc135b711c817b34
Formbook
ba41656ca5e0e243cff9f6a536c43998a9dbc492f5e813a0022e84359b2e0ef8
Formbook
cf5a2454c16d739c04939e84f71d62772620f7d0f90df49266e8493393da7167
Formbook
f59df25daa1bbe11f38724ad0b36eebc535f1f36ae3796ce5bebe1049cbb57ed
Formbook
fb1b538251b7c9a011807fee199f1446b68c40e9caed0709389eac91e311bf1e
Formbook
+ 3'656 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook ransomware rat spyware stealer trojan
Link:
https://tria.ge/reports/210129-jtzb1nt61s/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.paeonystore.com/kre/
Unpacked files
SH256 hash:
522ca117af0c25ce929471f3ed9726d1e47a8798f69b42eba1ed82143f6b692f
MD5 hash:
fb1a3d7209adf06f051e0a91b2bdbeef
SHA1 hash:
5162751e77b81b6c15825e11b2578d99c4bc61f1
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4188a534-1620-48fb-89f9-08ce9c818889/
Parent samples :
5f42f68bc67c97ebf181c31e7c243eee3580ebc75bb2a277f1847ea2bcedecc3
899d28616600c3199191bb4c4032178204a3b2b4303906e40ca69aea26e7eb67
SH256 hash:
3b1a88ef41864383dc88b975d968c032dc0f34ca71d0c89ea28a295bbb270400
MD5 hash:
42273d240f9f653423cfaa445acc701b
SHA1 hash:
93e56c842aa3f1e2bef2ff30eb585600bd606f7a
Link:
https://www.unpac.me/results/4188a534-1620-48fb-89f9-08ce9c818889/
SH256 hash:
5f42f68bc67c97ebf181c31e7c243eee3580ebc75bb2a277f1847ea2bcedecc3
MD5 hash:
aed013a0fa9eb5298f703977eccc3589
SHA1 hash:
f51bc95c98e3c201182403bc8e6fa39256f90220
Link:
https://www.unpac.me/results/4188a534-1620-48fb-89f9-08ce9c818889/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.84
Link:
https://yomi.yoroi.company/submissions/5f42f68bc67c97ebf181c31e7c243eee3580ebc75bb2a277f1847ea2bcedecc3

File information

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

Web download

Formbook

Executable exe 5f42f68bc67c97ebf181c31e7c243eee3580ebc75bb2a277f1847ea2bcedecc3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/978932/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/114669/

Comments