MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e84b45b4e30dbdd8025a76075af204369ea5b1c638b7c15ec7998600936ce181. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e84b45b4e30dbdd8025a76075af204369ea5b1c638b7c15ec7998600936ce181
SHA3-384 hash: dd6b2b11b662277154ed5fc2252f966228d54c197b39f5ec9d1a86a5d5f58519151985e5e25293beb7d32ff36ee2dfea
SHA1 hash: bf409219542c909ad4ff73ab1c9655880e7b0d1d
MD5 hash: 11cdc0e7fe1b1a845e05075445d1a02c
humanhash: tango-princess-helium-five
File name:account confirmation!.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'009'664 bytes
First seen:2020-11-23 06:30:58 UTC
Last seen:2020-11-23 06:32:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:mWqrhgJ7/k4jFeh/00rDopHD8RbkOQof+aCS:mnJthDo1CbpfVCS
Threatray 3'003 similar samples on MalwareBazaar
TLSH 6025D016AB886F69F07D53785465502883F0FD17E721EE8D3EDC14CE0DA2E88E726B16
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
166
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Result
Gathering data
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/544934
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
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
Sigma detected: Suspicious Svchost Process
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 321559 Sample: account confirmation!.exe Startdate: 23/11/2020 Architecture: WINDOWS Score: 100 31 www.groom.land 2->31 33 homyakny1.github.io 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 7 other signatures 2->47 11 account confirmation!.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\...\account confirmation!.exe.log, ASCII 11->29 dropped 57 Writes to foreign memory regions 11->57 59 Allocates memory in foreign processes 11->59 61 Injects a PE file into a foreign processes 11->61 15 vbc.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 2 other signatures 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 benefits-sherpa.com 34.102.136.180, 49753, 80 GOOGLEUS United States 18->35 37 firedoom.com 151.101.1.195, 49757, 80 FASTLYUS United States 18->37 39 4 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 svchost.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e84b45b4e30dbdd8025a76075af204369ea5b1c638b7c15ec7998600936ce181/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-11-22 23:30:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5bfulnhdbw65qas2oydvv4qeg2pklmoghc34cxwhtgdabe3m4gaq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
12898cbec097104c225702c61e311cc6e12d0f4ac55b95a1eb41a812e6941748
Formbook
23cb1d198cca93539a5bdbf18ce44ae3692be0ae968b5fe55e3794ec481aa1cf
Formbook
2693356eb785b39160f0dd89c916020ab5ae032faaa931b30c393e93da2740e4
Formbook
277cbccaab65669d5d245b53cc8dec596db650f30daf23c62b8a54cf93867b8d
Formbook
2f96167c307b2b82ca3ed1b6b6368b607cb075e178aef0ea4ff7bd4c203e7d6b
Formbook
5943e0f810c211de134f7225c22c1d453da8acb0b6774b86b60eeb084b61a37a
Formbook
6c38cd22154fec33d60c57f97e3a4d09d481f30422c2d0b1a6a65ea65639dd69
Formbook
b9225c079305112fcd1d5be698796eb426a668779daff06b99986266c161ab52
Formbook
dde122ac5a5a8eb786e335b3278dc5aae9cd3635c889fc4eb641a7a69123954d
Formbook
ece024ccd4accbc99e106f03c4b4764765b37615e3caa0b021084ac5f689cc3e
Formbook
+ 2'993 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201123-lccrryxvle/
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 UnmapMainImage
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.firedoom.com/sbmh/
Unpacked files
SH256 hash:
e84b45b4e30dbdd8025a76075af204369ea5b1c638b7c15ec7998600936ce181
MD5 hash:
11cdc0e7fe1b1a845e05075445d1a02c
SHA1 hash:
bf409219542c909ad4ff73ab1c9655880e7b0d1d
Link:
https://www.unpac.me/results/9a5a6972-5e7d-488d-9037-1f9b8b87f549/
SH256 hash:
c8671a87d685f2354d96f3cfcad530dfa5f3ec535a0f5ec14940d81fb857813b
MD5 hash:
b5358f677850210361f573c7d249c258
SHA1 hash:
215e06e319515d779efa88f7c05b343d6ec3f6a5
Link:
https://www.unpac.me/results/9a5a6972-5e7d-488d-9037-1f9b8b87f549/
SH256 hash:
57e19b18cec807501fd8664e3191d69fe6437c5268d6983e024b06e765dfe664
MD5 hash:
9affa1db4cec43cde4e4f7e884f86693
SHA1 hash:
09a44bbc1add78dac4c16ea4be50a2de06fe4ff0
Link:
https://www.unpac.me/results/9a5a6972-5e7d-488d-9037-1f9b8b87f549/
SH256 hash:
c6fcf5d515d56cf746b4c4aa4695f11e9ad7f6063a96cda810bf39dc47c5a7a0
MD5 hash:
47509d9db24c975e55c287afdc459fad
SHA1 hash:
4f1f893555c985d7cbba731cf1fdbf49c6ecf793
Link:
https://www.unpac.me/results/9a5a6972-5e7d-488d-9037-1f9b8b87f549/
SH256 hash:
acd4e745bf0c68839f8ae0c7ac4a84840d21f4b10726b80a04b36213cbdfef6c
MD5 hash:
f0883871a40e16be7b0aef9fb5f5d972
SHA1 hash:
8b7d55a6c8e7c58d42ae3e24559ce7c0e8873dcd
Link:
https://www.unpac.me/results/9a5a6972-5e7d-488d-9037-1f9b8b87f549/
SH256 hash:
76cda4a2cce2a7df151d7b6c79fcd53cde4006a64e018a84690236ba2d1e8335
MD5 hash:
41f05cd3fec86261b562d3f7e2513c29
SHA1 hash:
2c499304ca0bffd589dedb4bd629a832b5c201d6
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9a5a6972-5e7d-488d-9037-1f9b8b87f549/
Parent samples :
6c38cd22154fec33d60c57f97e3a4d09d481f30422c2d0b1a6a65ea65639dd69
2693356eb785b39160f0dd89c916020ab5ae032faaa931b30c393e93da2740e4
277cbccaab65669d5d245b53cc8dec596db650f30daf23c62b8a54cf93867b8d
dde122ac5a5a8eb786e335b3278dc5aae9cd3635c889fc4eb641a7a69123954d
e84b45b4e30dbdd8025a76075af204369ea5b1c638b7c15ec7998600936ce181
215b1bcebe9fb50bc7b3aaa67325559c5a8997f2101709fcb3459bf344274f56
a88db831c2dbd27895d7d042a3e4e604bd82caad37d51fccc76dfb81d884ffba
009d9a0f6fafa91b750271413fef5771a4ce5855a59c0e6c16c85eb7de08e52b
60263179eccb843c5aa38040ebd2483b29a3923a94987f006561488e5d0f1d96
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Eldorado
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/e84b45b4e30dbdd8025a76075af204369ea5b1c638b7c15ec7998600936ce181

File information

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

Malspam

Formbook

z cb57eebe68be1336c37fa799c141902545e4b571a9b18bb8f77ddac05cad7056

Formbook

Executable exe e84b45b4e30dbdd8025a76075af204369ea5b1c638b7c15ec7998600936ce181

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 cb57eebe68be1336c37fa799c141902545e4b571a9b18bb8f77ddac05cad7056
Cape
Cape
https://www.capesandbox.com/analysis/105182/

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