MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cacf7b55a28f0f3d49693f24fb6955578ab488929201b8a369ce73a944417e65. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cacf7b55a28f0f3d49693f24fb6955578ab488929201b8a369ce73a944417e65
SHA3-384 hash: c40fcf5f818de4183bb811ed02fdfa0bf9f3e54186e62072b8fdaa3f462382af85048af1eefae93fcde4c25d2dfddbca
SHA1 hash: c5cf7cd73aeefebea6702075b4ddbca5522a0941
MD5 hash: 08cf22edf542f96834ea830579681d85
humanhash: don-papa-paris-india
File name:cacf7b55a28f0f3d49693f24fb6955578ab488929201b8a369ce73a944417e65
Download: download sample
Signature Formbook
Create hunting rule
File size:340'992 bytes
First seen:2020-11-11 11:38:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fa3a99b038d1b19672af6b92afe86d67 (8 x Formbook)
ssdeep 6144:Xz8LgnEP4NeGW0WKLqlY5XbPvbTT4nhnne4VX2pClCmgBaGYArphY3:Xz8FEsm734hnvgpfmhGvq
Threatray 2'897 similar samples on MalwareBazaar
TLSH 6374F11535D1C073D4B7003A0964DEA1AA3DF8327FA1EC8FA7481B399E306D2DA29D67
Reporter seifreed
Tags:FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Dropper.LokiBot-9789787-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Launching the process to change network settings
Launching cmd.exe command interpreter
Launching a process
Setting browser functions hooks
Possible injection to a system process
Forced shutdown of a system process
Unauthorized injection to a system process
Deleting of the original file
Unauthorized injection to a browser 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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/531932
Signature
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)
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 dnsIp2 2 Behavior Graph ID: 315067 Sample: g1wEhoios8 Startdate: 12/11/2020 Architecture: WINDOWS Score: 100 32 www.royaltrustmyanmar.com 2->32 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected FormBook 2->44 46 2 other signatures 2->46 11 g1wEhoios8.exe 1 2->11         started        signatures3 process4 signatures5 56 Tries to detect virtualization through RDTSC time measurements 11->56 58 Injects a PE file into a foreign processes 11->58 14 g1wEhoios8.exe 11->14         started        17 conhost.exe 11->17         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 19 explorer.exe 14->19 injected process8 dnsIp9 34 comparamuebles.online 2.57.89.177, 49722, 80 AS-HOSTINGERLT Lithuania 19->34 36 www.skyreadymix.net 19->36 38 2 other IPs or domains 19->38 48 System process connects to network (likely due to code injection or exploit) 19->48 23 explorer.exe 19->23         started        26 chkdsk.exe 19->26         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 23->50 52 Maps a DLL or memory area into another process 23->52 54 Tries to detect virtualization through RDTSC time measurements 23->54 28 cmd.exe 1 23->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cacf7b55a28f0f3d49693f24fb6955578ab488929201b8a369ce73a944417e65/
Threat name:
Win32.Spyware.Stelega
Create hunting rule
Status:
Malicious
First seen:
2020-11-11 11:44:24 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
16a895e73a1fa9260fdc42786d134cadbfd8936365e2f550322f45f08307186e
Formbook
2b640d34fadaa474ab458cc7a312396ea6b58f269df9115dd934d79d1c869c32
Formbook
2f7928f55bdc7b386f2163c027d9ac29cf2cee2dd29b54fee39f18bc8db8344b
Formbook
350e219c13047857943a54ec0f55a0db19e2980cbff9d73f1aea34b9bd0b17de
Formbook
3964255c6edcc775158338c29c12a374eef6b3bad5d1b05641a7c92efb8873de
Formbook
74fe23fdb7b12b785e1e6db24dba0536deec51ddac1edbd53a0211b68672628b
Formbook
b79273545da050a53a38855e56afc06bce2cefe78fad1ccb36a8616b2950b1a0
Formbook
be170809e4230261e4a1be5ed4a3fd90108240f4f6c3a3151e2b14bfdeac89f6
Formbook
e34426ec0d12a3acde221f2a5e5476528e028c1fc980a7c2d35dcfdde9caccab
Formbook
fddea1265c29e98f5b679ff034f27124b688f03f2d4c72442ce5f358ddd3eff0
Formbook
+ 2'887 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/201111-1m672ajd1a/
Unpacked files
SH256 hash:
cacf7b55a28f0f3d49693f24fb6955578ab488929201b8a369ce73a944417e65
MD5 hash:
08cf22edf542f96834ea830579681d85
SHA1 hash:
c5cf7cd73aeefebea6702075b4ddbca5522a0941
Link:
https://www.unpac.me/results/8fa7095e-4d6f-4543-84ed-05a9e8c6b3dc/
SH256 hash:
2676d41a825e5c2c3e5e90c184016c6d6006e1fc7779f5132cc791a8e0f3e938
MD5 hash:
91695b48b884912c1ad68d98f55c8d3b
SHA1 hash:
b46c425a1796492cf045711d2f8327c4c1fd2a11
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8fa7095e-4d6f-4543-84ed-05a9e8c6b3dc/
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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

  
Delivery method
Other

Comments