MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3aa635a38f6737c7250e72a15aa596ca55d1cf31398bdcb7c5c6254cadbabf2. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f3aa635a38f6737c7250e72a15aa596ca55d1cf31398bdcb7c5c6254cadbabf2
SHA3-384 hash: 431d1e6b0dffdda3d690aee39a21b88699042bc0c38416c4071a2a4fba0f40b32a614bad5bbcc837d990f4ebfe703672
SHA1 hash: 1613ad841ec7290329e3bdf4495b71de9cd220da
MD5 hash: 2f06c2aaaad39dfb480607710e1169e2
humanhash: october-ink-vegan-hot
File name:32426387455_W5373883.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:706'048 bytes
First seen:2023-04-24 08:02:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:9DiG7H1Cgu/1OL+X1jjtEaIrgA9i/RSaeXv:9DFVgdOL+X1foNf
Threatray 2'633 similar samples on MalwareBazaar
TLSH T1EBE4CF2B226AD5B6D14E56B3E0E527FB0F6C2ECAEE7590430BAC7DD431727B91B08411
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 30b2c4c8c8c4b030 (53 x Formbook, 41 x RemcosRAT, 20 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
292
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
32426387455_W5373883.exe
Verdict:
Suspicious activity
Analysis date:
2023-04-24 08:06:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2536843f-ba45-480a-b4a3-9bed03e9e8ef

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/384489/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/644637b7115cd381d96cad40/reports/f080c67a-f5eb-4296-ba68-412b3ac75ee7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f3aa635a38f6737c7250e72a15aa596ca55d1cf31398bdcb7c5c6254cadbabf2
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4151ce1b-b989-4716-9b53-c5a7b0a91aeb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1219786
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Deletes itself after installation
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
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 852730 Sample: 32426387455_W5373883.exe Startdate: 24/04/2023 Architecture: WINDOWS Score: 100 25 www.berlinhealthweek.com 2->25 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 4 other signatures 2->45 9 32426387455_W5373883.exe 3 2->9         started        signatures3 process4 file5 23 C:\Users\...\32426387455_W5373883.exe.log, ASCII 9->23 dropped 12 32426387455_W5373883.exe 9->12         started        process6 signatures7 55 Modifies the context of a thread in another process (thread injection) 12->55 57 Maps a DLL or memory area into another process 12->57 59 Sample uses process hollowing technique 12->59 61 Queues an APC in another process (thread injection) 12->61 15 explorer.exe 3 6 12->15 injected process8 dnsIp9 29 www.berlinhealthweek.com 130.185.109.77, 49699, 80 XIRRADE Germany 15->29 31 www.jhg61.com 150.129.40.9, 49706, 49707, 49708 TELECOM-HKHongKongTelecomGlobalDataCentreHK Hong Kong 15->31 33 7 other IPs or domains 15->33 35 System process connects to network (likely due to code injection or exploit) 15->35 37 Uses netstat to query active network connections and open ports 15->37 19 NETSTAT.EXE 13 15->19         started        signatures10 process11 dnsIp12 27 www.jhg61.com 19->27 47 Tries to steal Mail credentials (via file / registry access) 19->47 49 Tries to harvest and steal browser information (history, passwords, etc) 19->49 51 Deletes itself after installation 19->51 53 2 other signatures 19->53 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f3aa635a38f6737c7250e72a15aa596ca55d1cf31398bdcb7c5c6254cadbabf2/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-04-24 08:03:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6ovggwry6zzxy4sq44vblksznssv2hhtcoml3s34lrrfjsw3vpza._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0b89806418ec582854a24adb93fba607c7f27938f2b653a081aefd1a5e419e4f
Formbook
0c5bd52278038e9194792544aa9ba56fa2fc62cdd74b5f5e47d8ab6ee7db5d0e
Formbook
10e1fd083fbaa700f1580863bc6bdc928fff23f2edc479c6a8d4e3d7ff57926c
Formbook
2069c3254c5a28daea136f39db600c179ba421e70f71cdd5765575012eb42d42
Formbook
3b86e5743a7a35e6c3e1dc7cb1a844299e7b1f9eeea5bb7e51ca0de52b808803
Formbook
5c205cffc83f7be274773fb1c3aa356b29d97e4d62a83e79c5fd52eadc3ed695
Formbook
896d0711b287b0914d88b93ff8d06623c60f45b405e12cbc34a406e09942a577
Formbook
d40024a841668b3cb64cb894613ee64fb37288125d32ca3068007f70db30f1ed
Formbook
f508b66b3b6398f2a4d73ecfd057ab0804320d523e09feefbe59ee33b1124508
Formbook
f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e
Formbook
+ 2'623 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230424-jxrmhsaf53/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
e5dbdc01986d7a1a5febe880e0ae60c299de29fd8e1c87d38d961b0851cee236
MD5 hash:
dfa855f0b9535007843b04475c93eb8d
SHA1 hash:
0c13eae96b9684902b3e30f52b59152ec80e0941
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/e9a3a9f4-4439-41b1-98a1-27d4f4570c5a/
Parent samples :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 hash:
90eca4b22b8fc2bdff42ed891a191fbf278b9ac8b3763bf31993395aa9c53cef
MD5 hash:
b4dfaced2d96fc64b5c7e6069770c170
SHA1 hash:
45cc7ca3d357bee2d48761165a0596a29baa346a
Link:
https://www.unpac.me/results/e9a3a9f4-4439-41b1-98a1-27d4f4570c5a/
SH256 hash:
21f0154b51a09767f94922b81f5fcd15cf4a6390ab7314e40d0e17b2dcdfe6ba
MD5 hash:
c926563698de3a89ad20474c85122f73
SHA1 hash:
ed1a3b2527ace111e6f39880c7ee3965f301330d
Link:
https://www.unpac.me/results/e9a3a9f4-4439-41b1-98a1-27d4f4570c5a/
SH256 hash:
5e5c8fe4e53980a98b48fe6b19155edf0f0d285ed899c61dbf4f880583ddf1d2
MD5 hash:
b3bbc5461d12f07ea893bf415dfe7c89
SHA1 hash:
40c3156c471d2afe3fd88c7d20cf93e5782e1bd6
Link:
https://www.unpac.me/results/e9a3a9f4-4439-41b1-98a1-27d4f4570c5a/
SH256 hash:
4a0bca74a1d4171101e5a75ba7cf81fe81ef964e574c01b9bc1a0edcbd8437eb
MD5 hash:
3f69ec12db67b6373b3b97bd8205ed7c
SHA1 hash:
274284a108158007bbcecbd6c3972468a192c88a
Link:
https://www.unpac.me/results/e9a3a9f4-4439-41b1-98a1-27d4f4570c5a/
SH256 hash:
b3863c2d362d07a2f50c99c8b8cd56350a19b490c1601ca560a66e67bb176d9b
MD5 hash:
e866fc8fc308f545aca94ed43b2db86d
SHA1 hash:
0e08ba9e40bf2ae92a751cb442b6ded375af970d
Link:
https://www.unpac.me/results/e9a3a9f4-4439-41b1-98a1-27d4f4570c5a/
SH256 hash:
f3aa635a38f6737c7250e72a15aa596ca55d1cf31398bdcb7c5c6254cadbabf2
MD5 hash:
2f06c2aaaad39dfb480607710e1169e2
SHA1 hash:
1613ad841ec7290329e3bdf4495b71de9cd220da
Link:
https://www.unpac.me/results/e9a3a9f4-4439-41b1-98a1-27d4f4570c5a/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f3aa635a38f6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f3aa635a38f6737c7250e72a15aa596ca55d1cf31398bdcb7c5c6254cadbabf2

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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.

Malspam

Formbook

Executable exe f3aa635a38f6737c7250e72a15aa596ca55d1cf31398bdcb7c5c6254cadbabf2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/384489/

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