bazarbackdoor | 88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767

Analysis

max time kernel
92s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11-10-2022 02:40

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General

Target

88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767.exe
Size

42.5MB
MD5

f96ce21f37e356f59df71370cba4b71d
SHA1

785b724a8cb34b677b7fb0b9b770b9b27b689538
SHA256

88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767
SHA512

0aa3107611282198d34ecb9c3a83aa56b0d3bbf92624104195c354864bf3053c7a4f6742df419c69a3cedd3688e9c719fc8bf4bd21bb4e450d8b09967980b330
SSDEEP

786432:T/n5lSOGApJPAHuXkw7/UQs2MMNixxG1cghRFbbraU3VvcMzztsIxeGX:bnGgAOXkw22sx8cEFbbGKNzz/wGX

Score

10^/10

bazarbackdoor backdoor bootkit persistence upx

Malware Config

Signatures

BazarBackdoor
Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.
backdoor bazarbackdoor

Bazar/Team9 Backdoor payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4956-143-0x0000000140000000-0x000000014402F000-memory.dmp	BazarBackdoorVar3
behavioral2/memory/4956-142-0x0000000140000000-0x000000014402F000-memory.dmp	BazarBackdoorVar3
behavioral2/memory/4956-161-0x0000000140000000-0x000000014402F000-memory.dmp	BazarBackdoorVar3
behavioral2/memory/4956-162-0x0000000140000000-0x000000014402F000-memory.dmp	BazarBackdoorVar3

Executes dropped EXE 1 IoCs

Processes:

DiskGenius.exe

pid process

4956 DiskGenius.exe

pid	process
4956	DiskGenius.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/1512-132-0x0000000140000000-0x0000000140061000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767.exe

Loads dropped DLL 2 IoCs

Processes:

DiskGenius.exe

pid process

4956 DiskGenius.exe
4956 DiskGenius.exe
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1067

Processes:

DiskGenius.exe

description ioc process

File opened for modification \??\PhysicalDrive0 DiskGenius.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

DiskGenius.exe

pid process

4956 DiskGenius.exe
4956 DiskGenius.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

DiskGenius.exe

pid process

4956 DiskGenius.exe
4956 DiskGenius.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

DiskGenius.exe

pid process

4956 DiskGenius.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

DiskGenius.exe

pid process

4956 DiskGenius.exe
4956 DiskGenius.exe
4956 DiskGenius.exe
4956 DiskGenius.exe

pid	process
4956	DiskGenius.exe
4956	DiskGenius.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	DiskGenius.exe

pid	process
4956	DiskGenius.exe
4956	DiskGenius.exe

pid	process
4956	DiskGenius.exe
4956	DiskGenius.exe

pid	process
4956	DiskGenius.exe

pid	process
4956	DiskGenius.exe
4956	DiskGenius.exe
4956	DiskGenius.exe
4956	DiskGenius.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767.exe

description	pid	process	target process
PID 1512 wrote to memory of 4956	1512	88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767.exe	DiskGenius.exe
PID 1512 wrote to memory of 4956	1512	88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767.exe	DiskGenius.exe

C:\Users\Admin\AppData\Local\Temp\88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767.exe
"C:\Users\Admin\AppData\Local\Temp\88a66e7115caa4c1e11822248a64d8a6da70934dafd382627adde693fd918767.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1512

C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\DiskGenius.exe
"C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\DiskGenius.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:4956

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\DiskGenius.exe
Filesize
33.6MB

MD5
50c1645573e7b9377165d14556db4626

SHA1
cb03f8879a256bf6fa76b80d1f45992af342f752

SHA256
315a7f7d4d58c2a1de599c7eea624fdf1077d7ae2869220b4a589e2167e120b5

SHA512
360246191279a1b875a2afd1a59654a28e2b9dd5b569322d95e5f8839314c4cd837578c450e458a71e6f0e8e7e73575ecafb8a493fc0d50e254fcdcc5f7f2b96

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\DiskGenius.exe
Filesize
33.6MB

MD5
50c1645573e7b9377165d14556db4626

SHA1
cb03f8879a256bf6fa76b80d1f45992af342f752

SHA256
315a7f7d4d58c2a1de599c7eea624fdf1077d7ae2869220b4a589e2167e120b5

SHA512
360246191279a1b875a2afd1a59654a28e2b9dd5b569322d95e5f8839314c4cd837578c450e458a71e6f0e8e7e73575ecafb8a493fc0d50e254fcdcc5f7f2b96

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\MSIMG32.dll
Filesize
7KB

MD5
2e111b435e8013f5aba504f903a307cf

SHA1
c082e11050a6e4e28c1993a74e64816e71d6fabf

SHA256
2f55d527f6d6d41e8efacf926b4d8428abbcfa173861d526d67709bd6c4f78d2

SHA512
34790015a1e7572cbba1a04a93427acb5c6ae164c4b81cad2fc355fd47664867eebd26f89f6d20d264461940bd95dec5091dbb1ee7c2362b38a1694b84424759

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\Options.ini
Filesize
379B

MD5
c5a3694ba3529642c79fe2ccd4f00e32

SHA1
d5baf9cd8e5784cc3af58fd7a492e1381ed87514

SHA256
60e5f3abfdf3c2f35c0caee2e0d0523191777931f95bed3f994e577950c89d61

SHA512
7374a9747278292850f15eb5eae9fc7a198adb9a36eba0fe748cdf9bdd7875745e368c585a7ef3bd641903edd6145c1b42ad158612fe3166802131ba2723a0eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\VERSION.dll
Filesize
3.8MB

MD5
16599eb8cab9b4ed39fddba1bd6ca33d

SHA1
6fd05c3e0a823810a69e8a7d119d4f4e69f9fd8c

SHA256
92c122b6e2ce9c6a5a40884d0d999da94c47e7c1b846183c137b3cd77314b647

SHA512
ec360831508ea73d977e1fb14c1ea4336d3c4a783eeb94b3be7bb5cfe241a89d349ff856c466da494a942a5616af4b6e48c51d69c8001bdd42e1cb412c6c69bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_arabic.lang
Filesize
304KB

MD5
36e6bd12713cc7ea2ed619492f3a0b36

SHA1
4c9c7553e7b0280d4a06080a55b81d562cae967f

SHA256
88beb58ebd7ef27916eeff1c4e95886006543a9e1c0b40e3d75a0552a7a5dd4a

SHA512
583fdff02d3ecfef6604b8a6f2e60a62d067b7f9d274320e4500019cacc07762b8e606236967ddaad98727731d269b0b9ea4927cbfd412b72817f406ef9b3456

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_dutch.lang
Filesize
362KB

MD5
793d1512888813f57abca0c14d00e008

SHA1
1c410cd16abc2a30cb9f9d1e76dc5562d09c8249

SHA256
d76187550ee2d2b898427e991d170892648abe65b6ce60b413b62b8e87e9b7b7

SHA512
e8277e668f565d52de09dc903a917febe792e388d4ab8df84f4a31a92da2c2446838bc4da70c141726cf8d47b4d7cb10ad04f29d4ef1bfb8b175bcfafff5e443

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_french.lang
Filesize
379KB

MD5
db9d40bea550efb174b0b0cde8342f40

SHA1
2fe99a4bbc23ebbccd7d1fd6db33e769e23f3fa1

SHA256
748373d2c75c82b6e00010cef871dfd38095ec721e3551821e5b48180075214f

SHA512
e8cfda67138df0c1d56362e55a6a313b7d913d016d431e43bbe6bb1950a14fa9042f277700736be687f6e3ec0ca8bfba869de06038a3fa15527f873f3f049e65

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_german.lang
Filesize
376KB

MD5
13ee86273ff93e697d6178e81d459569

SHA1
f8f489206a0ece4da3267c7848ee6c0cdd62c261

SHA256
c077a071c1d4ed3b62db0776368d3b58f825f7d460e716245770985b20662d32

SHA512
9f7319ea9b518249a4281c8bb838892c6877d69269521bfda3aa420d69b5f1966aefca4214723f4c14edbb9e979347b3b0f1081587603214e6c31582ea6bfb8c

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_hungarian.lang
Filesize
347KB

MD5
20cb6a53db84e79c542af6cc2e4c1637

SHA1
b046477c76ae89102a2ebea0dfbfb76731b4cb98

SHA256
98a82c56c27ae93243442b9e037d99bd33f1dab9cd85a580274d1a320616f3d4

SHA512
c6088adb738964aae91d46b90eb1c056d6df68b60ab52026518787586eec09b23cdff0a90a94e367efbfeaae69b689af29924d711626848d0ab5c7ff649643a4

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_italian.lang
Filesize
362KB

MD5
04587c0ff9a63ae631d562b73ec4b3a6

SHA1
e31d7b421439d1f7930fe3dc2b02cbe69b0a292d

SHA256
fd3619a3ccc1ae396f9da0445b307b25cc0d0c4a063b7c026add7c76cc314179

SHA512
c7289975ad24b730c7380e3fa3040dc216d31efccd6719d58937e870ee22221f5546aeca1fa0d256ce5aaadd9047876dad08e9f12fc6fa26dbf77403bc678760

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_japanese.lang
Filesize
233KB

MD5
31163ce99a34fa1dd0d533670f1fcf98

SHA1
ae4955292d8496fcb22b4e22506b2bbe7370e312

SHA256
e381e174a933840ae951970c158b8442be2fc4caa9c9573eb6532440fd3b5930

SHA512
35b4282a9fac1f1e1f7c3f50f591c3bbb572685b61b06b00afcafacb6f806a7b89fbb81d6c3fc87c1c73cb3a53bd57a16c6d29e8b5087e84dacf0c543b075a2b

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_korean.lang
Filesize
233KB

MD5
2b3a48778aad515d0e0428b0cc2d35ad

SHA1
c04361d21cb91db3a8faeeac85947ad0cb853d11

SHA256
f92b5b909c3366220eb5847c6535a4b75f9fa51a6a475468058dd08509a01579

SHA512
992531c5fc3c28081ac044279b9112f093dda8f4083c1c68b5a5bd9eef6f11d173a4ecb36cff37698b6097f4b8144c205fd62585f90e21b89dac6be8086f25d2

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_polish.lang
Filesize
356KB

MD5
b18e8317c304d45704a2298dcca59e7d

SHA1
d127f5daa2a6dd70f7fb0af9c048226f417b452f

SHA256
c5bed4b6e4fffb864bc5314f81de1f206eadfcffedc75a0cbf0f07c81047ad3a

SHA512
cda33ddd356513b7b3ae37c4483e7ee06005475967e871184079c4ba08430bbdfe0098d09ec476c4d821e7e21fd91b2622587ce70cd33df6048d7997151ca4b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_portuguese.lang
Filesize
358KB

MD5
106cfc3c40e4eeca11c4264ec120514f

SHA1
53a418b2fec3eaa171464beb674e93022c0e62f1

SHA256
63029ad335371feefa6f38b35ebeae643efbb369251b9773f212a5b79640507d

SHA512
4ed03e90f223b951e08e3ca5d328e35b1421c40946f918274c5589029d3e80dfafc6f432755607ad269322b8ae36bf44bc59206294b647df1276316345c64c86

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_russian.lang
Filesize
360KB

MD5
df313c0cf1629a0b8ef0155d201f1722

SHA1
4d40f70ee5a40437a22edd29b56e178de42868fa

SHA256
a12b3d675f6eff07c4331a8abf9a4cb3c806618c9c3eb4a7dded4ea39c215f80

SHA512
baa4d64868e65db30d9f5193ef29eb6ef589a0b3f78d153520c464d8dc1248a1db406ea487f762a8a63f6987d117dc8ddd1e6b0ab9f13fe908848beded2d0704

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\lang\Language_spanish.lang
Filesize
371KB

MD5
4366c4286cf305840372aad993c090ca

SHA1
cb357756eca8a52d2c67ec5bf5c5de0ceffbdc47

SHA256
e1dc3882e7308ba76c9ef2887f7355e1d86dce0f2ae506f2a1c98609a4311a77

SHA512
042af06d2c5e79c0b36851b5198cca408ce9cdbc24cbb89898cafa4d09c97b7128f6c0b14419c1570d4af96de358ff4f730c7e238969e8c91cd4abf7dc23db56

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\msimg32.dll
Filesize
7KB

MD5
2e111b435e8013f5aba504f903a307cf

SHA1
c082e11050a6e4e28c1993a74e64816e71d6fabf

SHA256
2f55d527f6d6d41e8efacf926b4d8428abbcfa173861d526d67709bd6c4f78d2

SHA512
34790015a1e7572cbba1a04a93427acb5c6ae164c4b81cad2fc355fd47664867eebd26f89f6d20d264461940bd95dec5091dbb1ee7c2362b38a1694b84424759

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DiskGenius\version.dll
Filesize
3.8MB

MD5
16599eb8cab9b4ed39fddba1bd6ca33d

SHA1
6fd05c3e0a823810a69e8a7d119d4f4e69f9fd8c

SHA256
92c122b6e2ce9c6a5a40884d0d999da94c47e7c1b846183c137b3cd77314b647

SHA512
ec360831508ea73d977e1fb14c1ea4336d3c4a783eeb94b3be7bb5cfe241a89d349ff856c466da494a942a5616af4b6e48c51d69c8001bdd42e1cb412c6c69bb

Download Submit
memory/1512-132-0x0000000140000000-0x0000000140061000-memory.dmp

Filesize
388KB

Download
memory/4956-142-0x0000000140000000-0x000000014402F000-memory.dmp

Filesize
64.2MB

Download
memory/4956-140-0x000007FF7D1A0000-0x000007FF7D1A6000-memory.dmp

Filesize
24KB

Download
memory/4956-141-0x00007FF7CC650000-0x00007FF7CC660000-memory.dmp

Filesize
64KB

Download
memory/4956-143-0x0000000140000000-0x000000014402F000-memory.dmp

Filesize
64.2MB

Download
memory/4956-133-0x0000000000000000-mapping.dmp

Download
memory/4956-160-0x000007FF7D1A0000-0x000007FF7D1A6000-memory.dmp

Filesize
24KB

Download
memory/4956-161-0x0000000140000000-0x000000014402F000-memory.dmp

Filesize
64.2MB

Download
memory/4956-162-0x0000000140000000-0x000000014402F000-memory.dmp

Filesize
64.2MB

Download