nanocore | d3be4990232180223bb7788dbba4c8f86296d413314ba55b2bcd4842c5b5633e

General

Target

ORIGINAL DOCUMENTS BL, C.I. & PACKING LIST.scr
Size

1.3MB
MD5

a0747b376c17728fe2731e9e98d1b017
SHA1

7917d0e5d6adfb0690455afdafbe81db00cfc41b
SHA256

870130235c0034bb2649c4268bfc3ff87de0fe2cf13d0af41ce0c0f397e5ea50
SHA512

58b934b044ce00910e8abf5c12b1bd25aeb9e5cd458740967e5d538ea13f0cb871595658e13da2acbf2dc3e3d94848ccd79cf64dca74b25d9a8c0d4337318585

Score

10^/10

nanocore remcos october-$$$$keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

remcos

Botnet

OCTOBER-$$$$

C2

mgc0147.hopto.org:2930

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-3MPDYA
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
notepad;solitaire;

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 2 IoCs

Processes:

bmxbniuglo.pifRegSvcs.exe

pid process

4016 bmxbniuglo.pif
1000 RegSvcs.exe

pid	process
4016	bmxbniuglo.pif
1000	RegSvcs.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

bmxbniuglo.pif

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	bmxbniuglo.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "c:\\45235440\\BMXBNI~1.PIF c:\\45235440\\JIFVHS~1.TCL"	bmxbniuglo.pif

Suspicious use of SetThreadContext 1 IoCs

Processes:

bmxbniuglo.pif

description pid process target process

PID 4016 set thread context of 1000 4016 bmxbniuglo.pif RegSvcs.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:

bmxbniuglo.pif

pid process

4016 bmxbniuglo.pif
4016 bmxbniuglo.pif
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

1000 RegSvcs.exe

description	pid	process	target process
PID 4016 set thread context of 1000	4016	bmxbniuglo.pif	RegSvcs.exe

pid	process
4016	bmxbniuglo.pif
4016	bmxbniuglo.pif

pid	process
1000	RegSvcs.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

ORIGINAL DOCUMENTS BL, C.I. & PACKING LIST.scrbmxbniuglo.pif

description	pid	process	target process
PID 3612 wrote to memory of 4016	3612	ORIGINAL DOCUMENTS BL, C.I. & PACKING LIST.scr	bmxbniuglo.pif
PID 3612 wrote to memory of 4016	3612	ORIGINAL DOCUMENTS BL, C.I. & PACKING LIST.scr	bmxbniuglo.pif
PID 3612 wrote to memory of 4016	3612	ORIGINAL DOCUMENTS BL, C.I. & PACKING LIST.scr	bmxbniuglo.pif
PID 4016 wrote to memory of 4360	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4360	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4360	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4540	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4540	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4540	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 3708	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 3708	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 3708	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4428	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4428	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4428	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4244	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4244	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 4244	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 576	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 576	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 576	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 904	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 904	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 904	4016	bmxbniuglo.pif	mshta.exe
PID 4016 wrote to memory of 1000	4016	bmxbniuglo.pif	RegSvcs.exe
PID 4016 wrote to memory of 1000	4016	bmxbniuglo.pif	RegSvcs.exe
PID 4016 wrote to memory of 1000	4016	bmxbniuglo.pif	RegSvcs.exe
PID 4016 wrote to memory of 1000	4016	bmxbniuglo.pif	RegSvcs.exe
PID 4016 wrote to memory of 1000	4016	bmxbniuglo.pif	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\ORIGINAL DOCUMENTS BL, C.I. & PACKING LIST.scr
"C:\Users\Admin\AppData\Local\Temp\ORIGINAL DOCUMENTS BL, C.I. & PACKING LIST.scr" /S
1⤵
- Suspicious use of WriteProcessMemory
PID:3612

C:\45235440\bmxbniuglo.pif
"C:\45235440\bmxbniuglo.pif" jifvhstup.tcl
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4016

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
3⤵
PID:4360

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
3⤵
PID:4540

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
3⤵
PID:3708

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
3⤵
PID:4428

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
3⤵
PID:4244

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
3⤵
PID:576

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
3⤵
PID:904

C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1000

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\45235440\bmxbniuglo.pif
MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\45235440\bmxbniuglo.pif
MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\45235440\cpuclokd.ini
MD5
8b670b655cf5bdbec4e8bf031a5c303a

SHA1
446d41c4e7a03d7e21261b52bc42a499e78697e8

SHA256
58ffca8fbe9fe189e29909b12d8306af25dcea9b98af76167905d3f7d27555f1

SHA512
d95918f4a5fd2649298b1218d4e62e8339d59eda01a47708c2934bbec6d7f0e16f68a8abc27c178dfe117c73a4e36083d1ca58e106900bde945179b1440fcffc

Download Submit
C:\45235440\jifvhstup.tcl
MD5
e263f4cfc881010a1f708fe3362def71

SHA1
e2a2fd67e35100df972329540d1d8d360801a817

SHA256
22fd46af8b13881cc697bd0dee62d33813912e05b966f1a86d6bb86158a786f7

SHA512
64389ccc9b05b20b24f1c198944d7a8482fec72193ec58e39fc1651168065d4288ad38a8ab8e861070f6c023ea9612fa451865033f3a09d01b02838d29318668

Download Submit
C:\45235440\qtbjvco.vjk
MD5
03371574057f34d8f0cd8b857234477e

SHA1
fabea7c051eb26d402e42be3279c24b51243172e

SHA256
1093ea8b90ac829a7ca7058f5e7aafb74012a331090e52c3f2e7229a70895f08

SHA512
82b25daf3662746f1d009c2ee2bc1f01715389d5545d883f3c795a8557d5796711f49840fbb5728081fd22203e961a82225f70a75ee7c2d29d1664c68f0f6f54

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
memory/576-125-0x0000000000000000-mapping.dmp

Download
memory/904-126-0x0000000000000000-mapping.dmp

Download
memory/1000-129-0x0000000000FDFC39-mapping.dmp

Download
memory/1000-128-0x0000000000FB0000-0x00000000014BF000-memory.dmp

Filesize
5.1MB

Download
memory/1000-132-0x0000000000FB0000-0x00000000014BF000-memory.dmp

Filesize
5.1MB

Download
memory/1000-133-0x0000000000FB0000-0x00000000014BF000-memory.dmp

Filesize
5.1MB

Download
memory/3708-122-0x0000000000000000-mapping.dmp

Download
memory/4016-115-0x0000000000000000-mapping.dmp

Download
memory/4244-124-0x0000000000000000-mapping.dmp

Download
memory/4360-120-0x0000000000000000-mapping.dmp

Download
memory/4428-123-0x0000000000000000-mapping.dmp

Download
memory/4540-121-0x0000000000000000-mapping.dmp

Download

Analysis

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