MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b904ef4f3dc7faabaedcb0481c9f0a3a86e8c4146cd51540c90378e5a197b9af. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b904ef4f3dc7faabaedcb0481c9f0a3a86e8c4146cd51540c90378e5a197b9af
SHA3-384 hash: 702b112bcca86b9f7c7f1d16765cee7701ca25470400a87eb122f6062b710aece0d66b9359700140ec921ec47e5fc7ee
SHA1 hash: 4a5c2e881d862c3b06839a5bfe6fcb316c700f97
MD5 hash: 45aad050f7b61c0c6835be193f6d573b
humanhash: queen-echo-gee-lemon
File name:Remittance Advice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:609'280 bytes
First seen:2022-03-28 11:18:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:jkDdPqXtcjbOuKdqW4GaOJ1U+dOcXwdvcoPbcAgdVmB1F:jKyXtuOTDJdSr6I
Threatray 14'912 similar samples on MalwareBazaar
TLSH T1D8D4BE37D6F8AF1AD57A82F45020C47A3AF18C42B900C416EDF635ABF9F6B924D51782
File icon (PE):PE icon
dhash icon 3e3d697e3c3c1f1f (11 x AgentTesla, 7 x Formbook)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/258581/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.48739130.23346.7555.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/624199a99253b276b78f09a6/reports/ebd0384d-8362-4cd2-bda2-c64009ecec5c/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9d771ecc-9c81-4bc9-84eb-7b2e6d704ddc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/965771
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b904ef4f3dc7faabaedcb0481c9f0a3a86e8c4146cd51540c90378e5a197b9af/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-28 02:58:38 UTC
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xeco6tz5y75kxlw4wbebzhykhkdorrauntkrkqgjan4olimxxgxq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1378ae8590449eb1d4300a28ca1119097f5954ac6c54f99dc0d83d75d932da28
Formbook
1db0c14308c42fd03886fdef546388f61558e612fce7f7043c28c822ac0c9b5e
Formbook
40fa9ba8113198bf73af0101d0c0275ed1ef014a15fd83457dbdbd29e80f99a8
Formbook
780e7dce2d7bd0d03577dcfaf9f2c52a6cb755e1efb3213516c3159a2a324f3a
Formbook
8693f77ce4f72e78f7635949a2cf836c06779be7cc07909e5d134d6d3089ed43
Formbook
ae7d4af56f79abdb03b343dfae7f614e52b4b3e842e1d11cc0c2e0953e74679d
Formbook
bae9500c6eecd23164e1eba0e489d68938bfff866d47fb9e6c8320b3b8500720
Formbook
+ 14'902 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:e0ep loader rat
Link:
https://tria.ge/reports/220328-net25shfg5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
4ce3b94228900267a7b8b15d58dd97a397e6c5a040a8ba2e8efacc2d796bdba9
MD5 hash:
f31e3460a181cdea39d8a4ff9bc0bfef
SHA1 hash:
b7b5175d7967390160481f64131139ea06bd6bdf
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1ea1a23a-df00-415f-8fec-1428fde71878/
Parent samples :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 hash:
224fa16f72e353cd48de63ef683a8f46b9b0f70ea592ebcf4dc2ef956ced56cf
MD5 hash:
3856e01fb958b8623872b9f796c4386c
SHA1 hash:
6ea78b980036f8ed563f852710461b4973c12f13
Link:
https://www.unpac.me/results/1ea1a23a-df00-415f-8fec-1428fde71878/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/1ea1a23a-df00-415f-8fec-1428fde71878/
SH256 hash:
b904ef4f3dc7faabaedcb0481c9f0a3a86e8c4146cd51540c90378e5a197b9af
MD5 hash:
45aad050f7b61c0c6835be193f6d573b
SHA1 hash:
4a5c2e881d862c3b06839a5bfe6fcb316c700f97
Link:
https://www.unpac.me/results/1ea1a23a-df00-415f-8fec-1428fde71878/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b904ef4f3dc7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/b904ef4f3dc7faabaedcb0481c9f0a3a86e8c4146cd51540c90378e5a197b9af

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/258581/

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