MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2
SHA3-384 hash: befcb10a43f4ce1428fae2d65187ed3cb87acea3d553099b0ce3dcc5983b04a06bfbdbb1e40756e7b4cd9c1f7a4e1df3
SHA1 hash: bceaa61ac23166feec0ce2e659c215c4cefce507
MD5 hash: e49d68f98d7594cd39722a29e32933c6
humanhash: lactose-texas-alaska-burger
File name:Estimate from Construction Materials Technologies Pty Ltd.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:554'496 bytes
First seen:2020-10-08 13:08:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:XSivlLmcmILdT5WCjocglmY8uBvg01jL:XhLBmulnoWYr
Threatray 2'535 similar samples on MalwareBazaar
TLSH 1CC48C732445886EDD660A714C7941F0BAA61ECE3F53890E72AE330D0D7271763EA66F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: saxamarketing.com
Sending IP: 199.217.115.34
From: Construction Materials Technologies <quickbooks@notification.intuit.com>
Subject: Quote - Estimate from Construction Materials Technologies (Pty) Ltd.
Attachment: Estimate from Construction Materials Technologies Pty Ltd.gz (contains "Estimate from Construction Materials Technologies Pty Ltd.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69246/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
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/485468
Signature
.NET source code contains very large array initializations
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-10-08 12:50:55 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ebksfibpioueo6q63apkdx7u6w4rjl54ah3ivqec4w7xnvz75cza._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0e7ba6c8acc0e3de5a31e050eb287daba683c992e12c4715730ef3ccf3bbf575
Formbook
2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390
Formbook
595e795d2c8aeafe3af742ef4f2a404546d55ae58d966d88c3d2880074aab591
Formbook
9feae92d12fa03fc35f79af2670703aa18a2dcb39d65c6415f81239eb5af011c
Formbook
a6fd278a82dad870444a8d93e3c05accdfaef779460c2f3777d9ef2441620a41
Formbook
b25e43fe3f6068eb13b79f8900dea897533005aee7e2139e6676b7cdc92cc588
Formbook
b3289e282e7c031fde98778bac0057bad5d933c85da0b43d95f177c6333fc3c2
Formbook
d9600ffc9406d71c60b7eb036248230510c3b971a1de563ca7b8b57e822f7879
Formbook
e548234adb2b484793484466ef99084bb77854de66782af91e38420a198b4f83
Formbook
e85f434810652692f3e0a0738d9156899afcbd2bed42a6f328f0092d72a1db34
Formbook
+ 2'525 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201008-e163s81j9s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mxmsportsgear.com/dfr/
Unpacked files
SH256 hash:
205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2
MD5 hash:
e49d68f98d7594cd39722a29e32933c6
SHA1 hash:
bceaa61ac23166feec0ce2e659c215c4cefce507
Link:
https://www.unpac.me/results/fdf5bd3b-6c69-44d6-88e8-152957e3ba30/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/fdf5bd3b-6c69-44d6-88e8-152957e3ba30/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
f8bee4108a324df32ad5a2ebafa6b7f411402a21e2598cf9db66486970f80fdd
MD5 hash:
a92da98ff6f5ae608503d074617bcc2a
SHA1 hash:
d3eafcccca011bb3a7a5ae52dd9704ceafcde472
Link:
https://www.unpac.me/results/fdf5bd3b-6c69-44d6-88e8-152957e3ba30/
SH256 hash:
e3f3f21f1da73f127615d0ce7f20b1159facd9b5015ef223de73dddbcdf1f59a
MD5 hash:
7a4f8f06291d4cff66c36c4963e2d0e6
SHA1 hash:
dfe8b19e175fb63bd891664e11e9f7fa646f4bf1
Link:
https://www.unpac.me/results/fdf5bd3b-6c69-44d6-88e8-152957e3ba30/
SH256 hash:
5471221d05c4363d2dcb8eea16133e78c54b0ae1d9169cc7d8d75df8a71658b1
MD5 hash:
884036c323f9ac728697f9b8449f17cd
SHA1 hash:
65eaa89e5651c5d1301f940898ebb5d184fcec9a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/fdf5bd3b-6c69-44d6-88e8-152957e3ba30/
Parent samples :
205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2
37fa0d1153831bdf8c08560d18a83afc2ccede848883819536eb81497c63229f
0c3afc73b1560d5d817104a616325e9f7a825e6b0158dfa0469b423c8bfbdf64
b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03
7843242690547cf0b4ebea118783c903b99c3a211f1775db3cf24b09fbe2454a
7538931bad1762c44d0d66ea730a3ca6c5acb18d326f3a2f5bffa1f81864354e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2

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.

be0041bd012c8c093497d25a0f087d04

Formbook

Executable exe 205522a02f43a8477a1ed81ea1dff4f5b914afbc01f68ac082e5bf76d73fe8b2

(this sample)

  
Dropped by
MD5 be0041bd012c8c093497d25a0f087d04
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/69246/

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