MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b138102457454a3101f17bba4da29d991c4330f387df3d0db2165aaabee608d2. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b138102457454a3101f17bba4da29d991c4330f387df3d0db2165aaabee608d2
SHA3-384 hash: eb3927ff087d4e8e16308e016e176fb22c0cd06e470553f8a028065db1d1ef24c3c9917106c45f525f0c75201ed610c5
SHA1 hash: 71b7f0fc19bbabe771634d9bda562c9d8e22e4a6
MD5 hash: 231eca38f25cab26b5a381d465974063
humanhash: steak-ten-white-summer
File name:SecuriteInfo.com.W32.AIDetectNet.01.16612.21949
Download: download sample
Signature Formbook
Create hunting rule
File size:1'364'992 bytes
First seen:2022-06-02 05:37:43 UTC
Last seen:2022-06-02 08:24:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:/iINFqRdC4uJPej84g/uApUTjoeJeH2GTKJYwAf2z+pb7q121:Ryu8Dq9pijoe16KvFz+p
TLSH T1F355170063E95A05F6FB5F79A972A4404BB77DDA683AD34E18CD50CE1FA3B808951B33
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
305
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.W32.AIDetectNet.01.16612.21949
Verdict:
Suspicious activity
Analysis date:
2022-06-02 05:43:34 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1688841a-c016-4727-8451-30fdea6ff8f9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/276230/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.16612.21949.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/62986346e4ca2b59334bb917/reports/f57b9f7e-47ff-4054-8649-d95120b37e8c/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/01d1ca32-dda0-4290-b0cc-2374b4aaa18a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1005504
Signature
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)
Multi AV Scanner detection for submitted file
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/b138102457454a3101f17bba4da29d991c4330f387df3d0db2165aaabee608d2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-02 01:29:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=we4bajcxivfdcaprpo5e3iu5teoegmhtq7pt2dnscznkvpxgbdja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:a2es loader rat
Link:
https://tria.ge/reports/220602-gbpvpadda2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
ae5dd0a7fc20901973744dacd5ca578abf254cd8d8641b9a0e24826db97f953f
MD5 hash:
582a38cd558a01e3c0b65c405430e5af
SHA1 hash:
d76316fd02714d58f2d5628622e344acdd721215
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/c8523fb0-d04e-482e-8cfc-ac519c175683/
Parent samples :
b138102457454a3101f17bba4da29d991c4330f387df3d0db2165aaabee608d2
0793dfe009772f771270e113edc94fc7a19fa5d7f53a3e858f9775319b9d536e
98f3a321eecbb419352f9ecbf3ef45a404ee280d18aa148c4e1dc80867cc09a2
00509d2de60dcdf523ea44b90e5dbbb510f6298bcd9810686ea625d33160176e
b326a836015d646984f10a251e4b6678a9822a1f365369512b80f0928b35299d
f6c20c48de3ffdb54b94206a36926206993732ee873b0e0916e417ff93e9f878
7ead9b6c89ec926f1b8f0f793e305315f9bc59876e14b57653e47f336648eafc
25773608894ed7dced5dd50dc02483ffdd6d9ee3d79333aa8292c5d2a2586e21
a1fda3d25de841c11ff5dae7f624462a8ee8b66ad97ead52b2d69f88875c3e5a
29706d5927c63e4ef3241012c1a81d1ca0382fbaa05d7f115c39184a03c598c3
f6b709d4d41b801c2f5df85f05f3396ab9a2d0b1851ebdc5e434b03c184dacd6
765c9f36ef8ac4c126c700a74d79f85ad6f02cc7e3539c1f79337efd9fd21bf6
329aff3de19577cdf2a9cba76a69b538280b0984577226b52ed9eeb193bbe0e7
05400e2e332ef1360d0e1a85c751d4e33e1269e7d5087ea695fe53b62180a121
215e5a85cc6a627b1abdf8744a7b20c3c3f2663ec5e59264d40679f004d4eca0
SH256 hash:
e441bb828291b73b3697d1138bb702d33ad8c69adc8cf3fec3a715c15f9397a2
MD5 hash:
5db10765acd8005d851ad5453929f1b8
SHA1 hash:
d8a5b322d9eefd309133597184a26291392d3ac4
Link:
https://www.unpac.me/results/c8523fb0-d04e-482e-8cfc-ac519c175683/
SH256 hash:
90895c1cbc56ce1d4e63e096ad870b329e050217f8e3e7320d3271391065b232
MD5 hash:
4248a8c4a1e02cf3556e7efd9be6f0f4
SHA1 hash:
b8b390f1a6221e4bc278bf2e7a789cee7738ea8a
Link:
https://www.unpac.me/results/c8523fb0-d04e-482e-8cfc-ac519c175683/
SH256 hash:
879c29560b21be7d9b69ca27ca4756df86e080fa3e34cb191aad5cb1e5f05504
MD5 hash:
30b6a54a992eae921a2eb8c5ea130911
SHA1 hash:
1c83f0319bffe007077c6656418c9b7344d5affe
Link:
https://www.unpac.me/results/c8523fb0-d04e-482e-8cfc-ac519c175683/
SH256 hash:
b138102457454a3101f17bba4da29d991c4330f387df3d0db2165aaabee608d2
MD5 hash:
231eca38f25cab26b5a381d465974063
SHA1 hash:
71b7f0fc19bbabe771634d9bda562c9d8e22e4a6
Link:
https://www.unpac.me/results/c8523fb0-d04e-482e-8cfc-ac519c175683/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b13810245745/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/b138102457454a3101f17bba4da29d991c4330f387df3d0db2165aaabee608d2

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

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/276230/

Comments