MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0c73c5e7d039898c297b3e6d1c48bc7c32eae93a24b731a0c21717925dba028. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a0c73c5e7d039898c297b3e6d1c48bc7c32eae93a24b731a0c21717925dba028
SHA3-384 hash: 301e63b624e58b92c270499ca00d2b5869b62649892bc096089bcf3e1567dd2abf53483137c3578539b866a5165a915b
SHA1 hash: 82b01648980a338143e5085e3637978e9191758c
MD5 hash: 23a2c71d7da1c4d0dd5aba91900cade2
humanhash: lithium-happy-friend-georgia
File name:SKA201019.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:275'968 bytes
First seen:2020-10-20 08:22:59 UTC
Last seen:2020-10-26 08:07:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash bc5966a463e3eb6e754f16a51c8132da (2 x Formbook, 1 x Matiex, 1 x AgentTesla)
ssdeep 6144:TK44SMAFvT587wY6O02JrH5HckBw0/+/oC:TK3S/e7wYt02JNcI0/oC
Threatray 2'546 similar samples on MalwareBazaar
TLSH 1144E0227AD0C870E4E1057CAC95A761567E7DBB3D799103BBAC110FBA602C1725F3E6
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: rdns0.hyterm.xyz
Sending IP: 134.209.44.46
From: Husain Shabbir<office@hyterm.xyz>
Subject: RE:RE:HASHTRON INTERNATIONAL TRADING RFQ DEC.Q4.
Attachment: PO AGV02-092023.ISO (contains "SKA201019.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/73332/
Detection(s):
SecuriteInfo.com.Trojan.Siggen10.39726.31946.14169.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/497301
Signature
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 300834 Sample: SKA201019.exe Startdate: 20/10/2020 Architecture: WINDOWS Score: 100 30 www.oceaneweb.com 2->30 32 www.daphnecbraxton.com 2->32 34 3 other IPs or domains 2->34 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 2 other signatures 2->48 11 SKA201019.exe 1 2->11         started        signatures3 process4 signatures5 58 Maps a DLL or memory area into another process 11->58 60 Tries to detect virtualization through RDTSC time measurements 11->60 14 SKA201019.exe 11->14         started        17 conhost.exe 11->17         started        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 36 concretecontractorlansing.com 198.54.116.38, 49735, 80 NAMECHEAP-NETUS United States 19->36 38 homeadventurerealty.com 34.102.136.180, 49739, 80 GOOGLEUS United States 19->38 40 14 other IPs or domains 19->40 50 System process connects to network (likely due to code injection or exploit) 19->50 23 wlanext.exe 19->23         started        signatures10 process11 signatures12 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 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a0c73c5e7d039898c297b3e6d1c48bc7c32eae93a24b731a0c21717925dba028/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 01:28:02 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uddtyxt5aomjrquxwptndrely7bs5lutujfxggqmefyxsjo3uaua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
15d71d7a0b659fa5429a2e96d9185dad6aca0fe201dfa802b7fd0ef2b8211c76
Formbook
339505a9dc4fdae3e5a44a6d33230c75d181a8674bead358b8c9012156f4672d
Formbook
72696d78e02a5f32462855866fee3ddba93f53a0a1bb84c58c98e84d623f3abd
Formbook
89c0e9f07b4245f97dccad1b925e19ad1a436b61c5fce2f2f12bc05c0042dcbe
Formbook
8b50a9610f9fe8bce3874969c39932235dc3129a3ed7057a40241b44cbdfa0c5
Formbook
92625b5d11e691107b8aa2e733c1be9fe3677b5a86f03e08f239bf6e0d450885
Formbook
a81417bec9f1772e798040075b9211127cefd65831a1bf582f0f72ce2891cae1
Formbook
e4badaf86c0f22c6b31c97f661ba5af3f757697e7493c2e750a813173dec2273
Formbook
f2cb02b3c504a4db0b43f79aef0d63398d9b984ee84d07acd690a448b63b5636
Formbook
fd09ea46df289ee19611d096f5281c1e15ee2bc2c54388dd35adfa17837eb038
Formbook
+ 2'536 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/201020-r6vb3drn9e/
Unpacked files
SH256 hash:
a0c73c5e7d039898c297b3e6d1c48bc7c32eae93a24b731a0c21717925dba028
MD5 hash:
23a2c71d7da1c4d0dd5aba91900cade2
SHA1 hash:
82b01648980a338143e5085e3637978e9191758c
Link:
https://www.unpac.me/results/c8779c83-9767-4e49-a3cf-06e69e3aa543/
SH256 hash:
541c1f5b4bea6c50b3c2e833579d8bc2985b7ffc4b18adf359131f2ee98eea4c
MD5 hash:
65b0d8c8a71c3decc82521a30b4456b1
SHA1 hash:
9293009c11ad1b91b4fd4b6cacc51536a0d5ebab
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c8779c83-9767-4e49-a3cf-06e69e3aa543/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Noon
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/a0c73c5e7d039898c297b3e6d1c48bc7c32eae93a24b731a0c21717925dba028

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

iso 04b86943509c9523445e273bd52f76d234f72bf613d6d42ac6a3188a4186b936

Formbook

Executable exe a0c73c5e7d039898c297b3e6d1c48bc7c32eae93a24b731a0c21717925dba028

(this sample)

  
Dropped by
MD5 d908326d859e06f2762ee5ff1e5593d4
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73332/
  
Dropped by
SHA256 04b86943509c9523445e273bd52f76d234f72bf613d6d42ac6a3188a4186b936

Comments