10a45dc010df96cbd65bfd8a59e906ca5f98dd6f7541cf02bdfc17df8384bb8f

Analysis

max time kernel
141s
max time network
124s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
26-05-2024 20:12

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General

Target

DoctorWeb.exe
Size

7.8MB
MD5

1c33f964fbf5b3642d02e4b20ba6f2ac
SHA1

dcec14364a4548ce394906487a37f98bb1d12198
SHA256

10a45dc010df96cbd65bfd8a59e906ca5f98dd6f7541cf02bdfc17df8384bb8f
SHA512

ea3268a85ff2dfe7c94c6eb670f4aa3a13ec3019cf47bbcfa7e31eaa48dea0c8ee7dd0ebd020785942063e8acee7e2df62cd0c1eadf46a0208ebea29e146462b
SSDEEP

98304:Jqx1gyR0CwX6T036KJt6Oe2NhqCZao4+Axhy4V7FLEMUH82Z3dFRsFVsKtOep1eT:6WhwInbrIh17FFWZnR0VsAHndDNc7T

Score

7^/10

bootkit persistence

Malware Config

Signatures

Executes dropped EXE 7 IoCs

Processes:

mbr.exeerroricons.exeINVERS.execrazywarningicons.execrazyinvers.exeerroriconscursor.exetoonel.exe

pid process

2528 mbr.exe
1600 erroricons.exe
1312 INVERS.exe
836 crazywarningicons.exe
2728 crazyinvers.exe
2676 erroriconscursor.exe
2800 toonel.exe
Loads dropped DLL 8 IoCs

Processes:

cmd.exe

pid process

2744 cmd.exe
2744 cmd.exe
2744 cmd.exe
2744 cmd.exe
2744 cmd.exe
2744 cmd.exe
2744 cmd.exe
2744 cmd.exe

pid	process
2528	mbr.exe
1600	erroricons.exe
1312	INVERS.exe
836	crazywarningicons.exe
2728	crazyinvers.exe
2676	erroriconscursor.exe
2800	toonel.exe

pid	process
2744	cmd.exe
2744	cmd.exe
2744	cmd.exe
2744	cmd.exe
2744	cmd.exe
2744	cmd.exe
2744	cmd.exe
2744	cmd.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

WScript.exe

description	ioc	process
File opened (read-only)	\??\V:	WScript.exe
File opened (read-only)	\??\Y:	WScript.exe
File opened (read-only)	\??\Z:	WScript.exe
File opened (read-only)	\??\H:	WScript.exe
File opened (read-only)	\??\I:	WScript.exe
File opened (read-only)	\??\J:	WScript.exe
File opened (read-only)	\??\N:	WScript.exe
File opened (read-only)	\??\P:	WScript.exe
File opened (read-only)	\??\T:	WScript.exe
File opened (read-only)	\??\U:	WScript.exe
File opened (read-only)	\??\X:	WScript.exe
File opened (read-only)	\??\O:	WScript.exe
File opened (read-only)	\??\R:	WScript.exe
File opened (read-only)	\??\S:	WScript.exe
File opened (read-only)	\??\W:	WScript.exe
File opened (read-only)	\??\B:	WScript.exe
File opened (read-only)	\??\E:	WScript.exe
File opened (read-only)	\??\K:	WScript.exe
File opened (read-only)	\??\M:	WScript.exe
File opened (read-only)	\??\A:	WScript.exe
File opened (read-only)	\??\G:	WScript.exe
File opened (read-only)	\??\L:	WScript.exe
File opened (read-only)	\??\Q:	WScript.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
T1542.003

Processes:

mbr.exe

description ioc process

File opened for modification \??\PhysicalDrive0 mbr.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

WScript.exe

description pid process

Token: 33 2424 WScript.exe
Token: SeIncBasePriorityPrivilege 2424 WScript.exe

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

description	pid	process
Token: 33	2424	WScript.exe
Token: SeIncBasePriorityPrivilege	2424	WScript.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

DoctorWeb.execmd.exe

description	pid	process	target process
PID 1732 wrote to memory of 2744	1732	DoctorWeb.exe	cmd.exe
PID 1732 wrote to memory of 2744	1732	DoctorWeb.exe	cmd.exe
PID 1732 wrote to memory of 2744	1732	DoctorWeb.exe	cmd.exe
PID 1732 wrote to memory of 2744	1732	DoctorWeb.exe	cmd.exe
PID 2744 wrote to memory of 2528	2744	cmd.exe	mbr.exe
PID 2744 wrote to memory of 2528	2744	cmd.exe	mbr.exe
PID 2744 wrote to memory of 2528	2744	cmd.exe	mbr.exe
PID 2744 wrote to memory of 2528	2744	cmd.exe	mbr.exe
PID 2744 wrote to memory of 2424	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 2424	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 2424	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 2424	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 1600	2744	cmd.exe	erroricons.exe
PID 2744 wrote to memory of 1600	2744	cmd.exe	erroricons.exe
PID 2744 wrote to memory of 1600	2744	cmd.exe	erroricons.exe
PID 2744 wrote to memory of 1600	2744	cmd.exe	erroricons.exe
PID 2744 wrote to memory of 1312	2744	cmd.exe	INVERS.exe
PID 2744 wrote to memory of 1312	2744	cmd.exe	INVERS.exe
PID 2744 wrote to memory of 1312	2744	cmd.exe	INVERS.exe
PID 2744 wrote to memory of 1312	2744	cmd.exe	INVERS.exe
PID 2744 wrote to memory of 836	2744	cmd.exe	crazywarningicons.exe
PID 2744 wrote to memory of 836	2744	cmd.exe	crazywarningicons.exe
PID 2744 wrote to memory of 836	2744	cmd.exe	crazywarningicons.exe
PID 2744 wrote to memory of 836	2744	cmd.exe	crazywarningicons.exe
PID 2744 wrote to memory of 2728	2744	cmd.exe	crazyinvers.exe
PID 2744 wrote to memory of 2728	2744	cmd.exe	crazyinvers.exe
PID 2744 wrote to memory of 2728	2744	cmd.exe	crazyinvers.exe
PID 2744 wrote to memory of 2728	2744	cmd.exe	crazyinvers.exe
PID 2744 wrote to memory of 2676	2744	cmd.exe	erroriconscursor.exe
PID 2744 wrote to memory of 2676	2744	cmd.exe	erroriconscursor.exe
PID 2744 wrote to memory of 2676	2744	cmd.exe	erroriconscursor.exe
PID 2744 wrote to memory of 2676	2744	cmd.exe	erroriconscursor.exe
PID 2744 wrote to memory of 2800	2744	cmd.exe	toonel.exe
PID 2744 wrote to memory of 2800	2744	cmd.exe	toonel.exe
PID 2744 wrote to memory of 2800	2744	cmd.exe	toonel.exe
PID 2744 wrote to memory of 2800	2744	cmd.exe	toonel.exe
PID 2744 wrote to memory of 1588	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 1588	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 1588	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 1588	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 2364	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 2364	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 2364	2744	cmd.exe	WScript.exe
PID 2744 wrote to memory of 2364	2744	cmd.exe	WScript.exe

C:\Users\Admin\AppData\Local\Temp\DoctorWeb.exe
"C:\Users\Admin\AppData\Local\Temp\DoctorWeb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1732

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\start_dobrota.bat" "
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2744

C:\Users\Admin\AppData\Local\Temp\RarSFX0\mbr.exe
mbr.exe
3⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
PID:2528

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\sound.vbs"
3⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:2424

C:\Users\Admin\AppData\Local\Temp\RarSFX0\erroricons.exe
erroricons.exe
3⤵
- Executes dropped EXE
PID:1600

C:\Users\Admin\AppData\Local\Temp\RarSFX0\INVERS.exe
INVERS.exe
3⤵
- Executes dropped EXE
PID:1312

C:\Users\Admin\AppData\Local\Temp\RarSFX0\crazywarningicons.exe
crazywarningicons.exe
3⤵
- Executes dropped EXE
PID:836

C:\Users\Admin\AppData\Local\Temp\RarSFX0\crazyinvers.exe
crazyinvers.exe
3⤵
- Executes dropped EXE
PID:2728

C:\Users\Admin\AppData\Local\Temp\RarSFX0\erroriconscursor.exe
erroriconscursor.exe
3⤵
- Executes dropped EXE
PID:2676

C:\Users\Admin\AppData\Local\Temp\RarSFX0\toonel.exe
toonel.exe
3⤵
- Executes dropped EXE
PID:2800

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\messages2.vbs"
3⤵
PID:1588

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\messages.vbs"
3⤵
PID:2364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\INVERS.exe

Filesize
2.3MB

MD5
5134f289dbf4abae370e3f36b637b73e

SHA1
c78d3f2d00dc47da0112a74df665c7a84a8e32c3

SHA256
e69c9383b5d9fe4e069ddee15797c52e9116f883ad3b1717d2519621ab2751b2

SHA512
0bf61a04b93b1ba5b8a0e2d9a1c333cc4605350a4c797cc9f5f78fec698d6f4fd62d329513ed406e76a06aa6af0f00d206da723e5a33315ce8de7f68f2002cb5

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\crazyinvers.exe

Filesize
2.3MB

MD5
a44458813e819777013eb3e644d74362

SHA1
2dd0616ca78e22464cf0cf68ef7915358a16f9ee

SHA256
47f0e9a90d45b193e81d3e60b7a43e5a4550a07a3dd1f7c98110fde12265d999

SHA512
1a4723a36f55cf696f33a7927571bda403e81ced32fda85c7cf25c8458897fb187e46bf5f80c26542725a9a7e5aa0e961fd3f3b110ae8f54b3b96b3e5dfc8215

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\crazywarningicons.exe

Filesize
1.2MB

MD5
e21bb4749a8b1b6fc26a7bcf57781836

SHA1
89cb0bd80d691ca650ad01551be3acefa2256ebd

SHA256
0ecbb8099ed1d9a1673165d3c4c9bbde88dd9678540a98b99434ff23b9e6d82c

SHA512
b0ccf421e415f94b6f0497dd041a8e7693d01d72cd577eca771d2049516f7a0c8c7221da642e5c38d5bc95a2335279d36f956314bda442b99a2d244bcc73b47b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\dobrota.mp3

Filesize
6.6MB

MD5
fad2e8c2a096f4593a03a771bbe99458

SHA1
88af47f279b9ea008901a6a242466f40f44e8a5c

SHA256
a40dd9aedae52766593bce06a9a68d47fcf8d430f254ce5e50b0c55587d46213

SHA512
7b607d2927bfb5d2ae3da7ad40fc842f6c1cd12cbc8814a043950d65f50d8084aaa8a544fe51312e68bde9434b138c5c8df50568650658ed0600f447a4a32441

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\erroriconscursor.exe

Filesize
316KB

MD5
135eeb256e92d261066cfd3ffd31fb3e

SHA1
5c275ffd2ab1359249bae8c91bebcab19a185e91

SHA256
f0fe346146c30129ed6f507906c973f1a54c7d8dd8821c97e9b6edc42545699d

SHA512
a3792f92b116851023620d862cac6d2b5542de41390b6b8d223074db94193f0ee6dfcc9d6588ea3e77173f73c7fdfc5f9a1e1044c597636fe275d9ff4b76a12b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\mbr.exe

Filesize
47KB

MD5
8562ed46d745dceb3cc268693ca25c83

SHA1
309067f0c9703084654495a47e67f7a40824700d

SHA256
ea5d21e6598d52b30e9d055bc406c6227bbadb5c493addb27b32fb16a6dcae8c

SHA512
52f23e70f7ea6eab1a50a4008e563d787732f7361dfe10c48f39dae42bce023c90449c9a903733fab13c49b50f8c4fa7d4864ab26c69326aab0149c765fd677b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\messages.vbs

Filesize
37B

MD5
35fbf9bf29760b9e120b37900b3c1343

SHA1
8a231c37ee13e72f27a38411668fde6fef3ff5bc

SHA256
e1cdab59df6508013e8b91c71043c8ecfe81b94a037706147ed19adf992539e6

SHA512
d1c12b6690c6b90dda5ad3e226e30adc848b3c324f929dec373ab6c7606fbcab716c49c4446efadf14036583924f8f094491bfe8bef380fd877c00cf9feaacc6

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\messages2.vbs

Filesize
37B

MD5
63954d8930e517637c254f9da0749e7a

SHA1
27f6a13c0e9530166d62b4586c3d2bda5cb5064c

SHA256
bffa14678b8c39c2fbfa54b76fbac5f750aebc8dc2954da10a55b7f1f90f351c

SHA512
dd5df6b8a64523fedb5aaced7d864013d12e6930015d8fd2267b11cffe76741c3a7907814a832ff7589476a51d16e8ab0fc566f4ac0784f6a599070080c7008d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\sound.vbs

Filesize
216B

MD5
c36c15e1f99e1c0d093b9b089b1073c5

SHA1
47a237639f83d8de0c2034831ff3e12a3bad7408

SHA256
3d6123cae8ac645d9c9d33b0dada869a7fdd5117a2bf0f9080e4e30fe5bed736

SHA512
4283b45c6483e2ed6e9741f5937bb7851e101fb4710bd687a73a77b5abcb820d2480deaee50c8e87a7f225cee2430836da75d201838e9d989e91f3c0c0c60d1f

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\start_dobrota.bat

Filesize
220B

MD5
99ee6716bf6dd074e52a923e74f9fa70

SHA1
42494346592ca59d2d895ec77d37d83ce2dbed1a

SHA256
d51fd681ba6346842afe2f9cb7ae117cb667986af0c67e28664124173b183740

SHA512
2179380ec9630dbce4f7637f4e6fe8164d61cb41c2d43be98d97a7116aa5d7a181a8bdb4ed3f3d147aaec9dd2152dd9a23e94e3a67c2bd7f12e4b205826b6732

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\toonel.exe

Filesize
317KB

MD5
a84257e64cfbd9f6c0a574af416bc0d1

SHA1
245649583806d63abb1b2dc1947feccc8ce4a4bc

SHA256
fe7ff85b95ec06ce0f3cb49fdfa4d36de1f08669d36d381794aaf597510afad7

SHA512
6fc85ee0f8c75a25193fc4883a734704a8190253348c158b9cef4b918cffee5c8997c5248ec2bc793f66978e8cb4c5233d300d112f1d7750bc660698414865c2

Download Submit
\Users\Admin\AppData\Local\Temp\RarSFX0\erroricons.exe

Filesize
316KB

MD5
7f31508d95be3fe50e4e9aa646e86a12

SHA1
c61b439d6e17d630728f48c09b36af2647940748

SHA256
994efdb644ca1acb029dfd8d8eeba440e1cb74d93841b17f21165b9900730b15

SHA512
2e2b01e84a3476b47a9c703b71ce31887e4a4fa9340780f0cbbd20601be621bf00b9619df8bec0e81b2825550150c477c5071d921104a4c6265ef2d5a9e77eda

Download Submit
memory/836-150-0x0000000000400000-0x0000000000541000-memory.dmp

Filesize
1.3MB

Download
memory/1312-149-0x0000000000400000-0x0000000000582000-memory.dmp

Filesize
1.5MB

Download
memory/1600-148-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2528-47-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2676-152-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2728-151-0x0000000000400000-0x0000000000582000-memory.dmp

Filesize
1.5MB

Download
memory/2744-143-0x00000000030E0000-0x00000000031E0000-memory.dmp

Filesize
1024KB

Download
memory/2800-153-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download