bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633

Analysis

max time kernel
43s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 19:08

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General

Target

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
Size

2.8MB
MD5

a2c9ee7419369ada4d8a41ef14d642a4
SHA1

bbeee886e192b807097c22bbaf79483659242d11
SHA256

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633
SHA512

0f14717a83583b92ec472c7557cd1d81a95bc66507089aa0cfc785e575a11406aae172f3c95dec61426cbe6848f8a4e4a3e99b9183f351c6bbd5379657a337e1
SSDEEP

49152:etQ81S566MD++BLuh7BFQEuQsk9RxsmHpAJr/EnPUk151Fy7b3mAn0JxRvyGoU+T:etQ81ZpD++Buh7L/rxxHpAJCNZYH26x3

Score

8^/10

evasion upx

Malware Config

Signatures

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\Disableregistrytools = "1"	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe

Executes dropped EXE 1 IoCs

Processes:

update.exe

pid process

456 update.exe

pid	process
456	update.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2032-58-0x0000000002730000-0x00000000027A2000-memory.dmp	upx
behavioral1/memory/2032-60-0x0000000002BF0000-0x0000000002C62000-memory.dmp	upx
behavioral1/memory/2032-62-0x0000000002BF0000-0x0000000002C62000-memory.dmp	upx

Loads dropped DLL 6 IoCs

Processes:

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exeupdate.exe

pid	process
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
456	update.exe
456	update.exe
456	update.exe
456	update.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exeupdate.exe

pid process

2032 bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
456 update.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Default_Page_URL = "http://www.2345.com/?k7719958"	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Default_Page_URL = "http://www.2345.com/?k7719958"	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

Processes:

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "http://www.2345.com/?k7719958"	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exeupdate.exe

pid	process
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
456	update.exe

Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exeupdate.exe

pid	process
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
456	update.exe
456	update.exe
456	update.exe
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe

description	pid	process	target process
PID 2032 wrote to memory of 456	2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe	update.exe
PID 2032 wrote to memory of 456	2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe	update.exe
PID 2032 wrote to memory of 456	2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe	update.exe
PID 2032 wrote to memory of 456	2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe	update.exe
PID 2032 wrote to memory of 456	2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe	update.exe
PID 2032 wrote to memory of 456	2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe	update.exe
PID 2032 wrote to memory of 456	2032	bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe	update.exe

C:\Users\Admin\AppData\Local\Temp\bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe
"C:\Users\Admin\AppData\Local\Temp\bbc4ba600bec97977bd31eb7e1e197c22eeb29266c37f536e6a40e3d4a1ac633.exe"
1⤵
- Disables RegEdit via registry modification
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032

C:\Users\Admin\AppData\Local\Temp\update.exe
update.exe ¡. ,37B74A5D6,¡¾·þÎñ¶ËÔÝÊ±²»¿ÉÓÃ¡¿404 ,727273247271262020727573292729272772742321757227752175212927732222757572222922262673232776252326752671242075237424712171732623233E75687537B74A5D6
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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\SkinH_EL.dll

Filesize
98KB

MD5
1dd2a4a0f4d21eb65db5895fca2ca489

SHA1
b0c0617f6f66b35e255ec9824cde41f382a60e80

SHA256
7a7f037bab8024a9d17fb225cc4aa04133081135ecc4be5bbb889c0fbebd7e0c

SHA512
214e7aa56e820ebec87a778293871672f7c4e92d06bdf5ba18a2fc536003b2e15ebdce65c1ae3c927a16fcfe865c1720a7262e7a700459c66b4ae563374518ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\Skin\1.she

Filesize
17KB

MD5
80c06edd13c6f84f046f9058ca457920

SHA1
a577a558a594318e4dcfecfc78e20fa59a2a6bee

SHA256
2bd8a27de57e5aab144d10d2dc5413f0b09141e93aae0387ade268d86ebbc7b2

SHA512
9b981ec499e8e6e8a4fa6e964d5109a93c6177a8db4cf3e7df62254cb916f97fc2c32f51bfe7ced92b4d7ab2a42bbbae2a49e71f7e13cd6833b975438f579459

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

Filesize
1.1MB

MD5
554d2c9234f97f2514e58da55e12d505

SHA1
3bda8c0ec3339a44f5420cf43b827a18242db9f1

SHA256
7b7651ef58f67458b0f924191822cbcaff15d14a60f9a1fac83f474f550adeff

SHA512
5668cc0073a015fa87d6fb5cdb1dc6aee36df3c9202d93817b1a3fbd8aec5e94c8f3bf0c240bc6b4cd8b73c4bbbdd7f5748ba2f508fdc709a0350d4eac630d5d

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

Filesize
1.1MB

MD5
554d2c9234f97f2514e58da55e12d505

SHA1
3bda8c0ec3339a44f5420cf43b827a18242db9f1

SHA256
7b7651ef58f67458b0f924191822cbcaff15d14a60f9a1fac83f474f550adeff

SHA512
5668cc0073a015fa87d6fb5cdb1dc6aee36df3c9202d93817b1a3fbd8aec5e94c8f3bf0c240bc6b4cd8b73c4bbbdd7f5748ba2f508fdc709a0350d4eac630d5d

Download Submit
\Users\Admin\AppData\Local\Temp\SkinH_EL.dll

Filesize
98KB

MD5
1dd2a4a0f4d21eb65db5895fca2ca489

SHA1
b0c0617f6f66b35e255ec9824cde41f382a60e80

SHA256
7a7f037bab8024a9d17fb225cc4aa04133081135ecc4be5bbb889c0fbebd7e0c

SHA512
214e7aa56e820ebec87a778293871672f7c4e92d06bdf5ba18a2fc536003b2e15ebdce65c1ae3c927a16fcfe865c1720a7262e7a700459c66b4ae563374518ae

Download Submit
\Users\Admin\AppData\Local\Temp\SkinH_EL.dll

Filesize
98KB

MD5
1dd2a4a0f4d21eb65db5895fca2ca489

SHA1
b0c0617f6f66b35e255ec9824cde41f382a60e80

SHA256
7a7f037bab8024a9d17fb225cc4aa04133081135ecc4be5bbb889c0fbebd7e0c

SHA512
214e7aa56e820ebec87a778293871672f7c4e92d06bdf5ba18a2fc536003b2e15ebdce65c1ae3c927a16fcfe865c1720a7262e7a700459c66b4ae563374518ae

Download Submit
\Users\Admin\AppData\Local\Temp\update.exe

Filesize
1.1MB

MD5
554d2c9234f97f2514e58da55e12d505

SHA1
3bda8c0ec3339a44f5420cf43b827a18242db9f1

SHA256
7b7651ef58f67458b0f924191822cbcaff15d14a60f9a1fac83f474f550adeff

SHA512
5668cc0073a015fa87d6fb5cdb1dc6aee36df3c9202d93817b1a3fbd8aec5e94c8f3bf0c240bc6b4cd8b73c4bbbdd7f5748ba2f508fdc709a0350d4eac630d5d

Download Submit
\Users\Admin\AppData\Local\Temp\update.exe

Filesize
1.1MB

MD5
554d2c9234f97f2514e58da55e12d505

SHA1
3bda8c0ec3339a44f5420cf43b827a18242db9f1

SHA256
7b7651ef58f67458b0f924191822cbcaff15d14a60f9a1fac83f474f550adeff

SHA512
5668cc0073a015fa87d6fb5cdb1dc6aee36df3c9202d93817b1a3fbd8aec5e94c8f3bf0c240bc6b4cd8b73c4bbbdd7f5748ba2f508fdc709a0350d4eac630d5d

Download Submit
\Users\Admin\AppData\Local\Temp\update.exe

Filesize
1.1MB

MD5
554d2c9234f97f2514e58da55e12d505

SHA1
3bda8c0ec3339a44f5420cf43b827a18242db9f1

SHA256
7b7651ef58f67458b0f924191822cbcaff15d14a60f9a1fac83f474f550adeff

SHA512
5668cc0073a015fa87d6fb5cdb1dc6aee36df3c9202d93817b1a3fbd8aec5e94c8f3bf0c240bc6b4cd8b73c4bbbdd7f5748ba2f508fdc709a0350d4eac630d5d

Download Submit
\Users\Admin\AppData\Local\Temp\update.exe

Filesize
1.1MB

MD5
554d2c9234f97f2514e58da55e12d505

SHA1
3bda8c0ec3339a44f5420cf43b827a18242db9f1

SHA256
7b7651ef58f67458b0f924191822cbcaff15d14a60f9a1fac83f474f550adeff

SHA512
5668cc0073a015fa87d6fb5cdb1dc6aee36df3c9202d93817b1a3fbd8aec5e94c8f3bf0c240bc6b4cd8b73c4bbbdd7f5748ba2f508fdc709a0350d4eac630d5d

Download Submit
memory/456-88-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download
memory/456-85-0x0000000000C80000-0x0000000000F12000-memory.dmp

Filesize
2.6MB

Download
memory/456-86-0x0000000000C80000-0x0000000000F12000-memory.dmp

Filesize
2.6MB

Download
memory/456-87-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/456-79-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/456-69-0x0000000000000000-mapping.dmp

Download
memory/456-78-0x0000000000C80000-0x0000000000F12000-memory.dmp

Filesize
2.6MB

Download
memory/456-89-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/456-77-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/2032-66-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2032-76-0x0000000004C80000-0x0000000004F12000-memory.dmp

Filesize
2.6MB

Download
memory/2032-60-0x0000000002BF0000-0x0000000002C62000-memory.dmp

Filesize
456KB

Download
memory/2032-54-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/2032-57-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2032-58-0x0000000002730000-0x00000000027A2000-memory.dmp

Filesize
456KB

Download
memory/2032-67-0x0000000002730000-0x00000000027A2000-memory.dmp

Filesize
456KB

Download
memory/2032-55-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2032-84-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2032-59-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2032-65-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2032-64-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download
memory/2032-62-0x0000000002BF0000-0x0000000002C62000-memory.dmp

Filesize
456KB

Download
memory/2032-61-0x0000000002730000-0x00000000027A2000-memory.dmp

Filesize
456KB

Download