f0031f9d7f25d4d29581879f62565a5a565995899adc60213f9e218147c78593

Analysis

max time kernel
126s
max time network
130s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
14-06-2024 20:45

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General

Target

MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe
Size

5.3MB
MD5

fbd9ad001bb2719f574c0705c5de05fb
SHA1

d07e77a490ad677935ac8213b88237e94440e791
SHA256

f0031f9d7f25d4d29581879f62565a5a565995899adc60213f9e218147c78593
SHA512

5724e3f858ae7ea92ba4ce325f3f8f4b90ecc6d7c19476e2888c4b09f0913463191b977f71314300918cceb0a6ae0b80e29d3c70891e8aeb9314da233a929e96
SSDEEP

98304:oeZOuRuvqAgef1ndGaX6tJJQv2FKA75OpVclc02vDRZTEB:1ZOPNdo3u0jc02vVZoB

Score

4^/10

Malware Config

Signatures

Executes dropped EXE 6 IoCs

Processes:

nemu-downloader.exeColaBoxChecker.exeHyperVChecker.exeHyperVChecker.exe7z.exe7z.exe

pid process

4660 nemu-downloader.exe
844 ColaBoxChecker.exe
3588 HyperVChecker.exe
3772 HyperVChecker.exe
4044 7z.exe
3368 7z.exe
Loads dropped DLL 2 IoCs

Processes:

7z.exe7z.exe

pid process

4044 7z.exe
3368 7z.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

nemu-downloader.exe

pid process

4660 nemu-downloader.exe
4660 nemu-downloader.exe
4660 nemu-downloader.exe
4660 nemu-downloader.exe
Suspicious behavior: LoadsDriver 4 IoCs

Processes:

pid process

648
648
648
648

pid	process
4660	nemu-downloader.exe
844	ColaBoxChecker.exe
3588	HyperVChecker.exe
3772	HyperVChecker.exe
4044	7z.exe
3368	7z.exe

pid	process
4044	7z.exe
3368	7z.exe

pid	process
4660	nemu-downloader.exe
4660	nemu-downloader.exe
4660	nemu-downloader.exe
4660	nemu-downloader.exe

pid	process
648
648
648
648

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

7z.exe7z.exe

description	pid	process
Token: SeRestorePrivilege	4044	7z.exe
Token: 35	4044	7z.exe
Token: SeSecurityPrivilege	4044	7z.exe
Token: SeSecurityPrivilege	4044	7z.exe
Token: SeRestorePrivilege	3368	7z.exe
Token: 35	3368	7z.exe
Token: SeSecurityPrivilege	3368	7z.exe
Token: SeSecurityPrivilege	3368	7z.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exenemu-downloader.exe

description	pid	process	target process
PID 1204 wrote to memory of 4660	1204	MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe	nemu-downloader.exe
PID 1204 wrote to memory of 4660	1204	MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe	nemu-downloader.exe
PID 1204 wrote to memory of 4660	1204	MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe	nemu-downloader.exe
PID 4660 wrote to memory of 844	4660	nemu-downloader.exe	ColaBoxChecker.exe
PID 4660 wrote to memory of 844	4660	nemu-downloader.exe	ColaBoxChecker.exe
PID 4660 wrote to memory of 844	4660	nemu-downloader.exe	ColaBoxChecker.exe
PID 4660 wrote to memory of 3588	4660	nemu-downloader.exe	HyperVChecker.exe
PID 4660 wrote to memory of 3588	4660	nemu-downloader.exe	HyperVChecker.exe
PID 4660 wrote to memory of 3772	4660	nemu-downloader.exe	HyperVChecker.exe
PID 4660 wrote to memory of 3772	4660	nemu-downloader.exe	HyperVChecker.exe
PID 4660 wrote to memory of 4044	4660	nemu-downloader.exe	7z.exe
PID 4660 wrote to memory of 4044	4660	nemu-downloader.exe	7z.exe
PID 4660 wrote to memory of 4044	4660	nemu-downloader.exe	7z.exe
PID 4660 wrote to memory of 3368	4660	nemu-downloader.exe	7z.exe
PID 4660 wrote to memory of 3368	4660	nemu-downloader.exe	7z.exe
PID 4660 wrote to memory of 3368	4660	nemu-downloader.exe	7z.exe

C:\Users\Admin\AppData\Local\Temp\MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe
"C:\Users\Admin\AppData\Local\Temp\MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1204

C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\nemu-downloader.exe
C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\nemu-downloader.exe
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4660

C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\ColaBoxChecker.exe
"C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\ColaBoxChecker.exe" checker /baseboard
3⤵
- Executes dropped EXE
PID:844

C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\HyperVChecker.exe
"C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\HyperVChecker.exe"
3⤵
- Executes dropped EXE
PID:3588

C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\HyperVChecker.exe
"C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\HyperVChecker.exe"
3⤵
- Executes dropped EXE
PID:3772

C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\7z.exe
"C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\7z.exe" a -tzip "C:\Users\Admin\AppData\Local\Temp\nemux.zip" "C:\Users\Admin\AppData\Local\Temp\nemux"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:4044

C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\7z.exe
"C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\7z.exe" a -tzip "C:\Users\Admin\AppData\Local\Temp\nemux.zip" "C:\Users\Admin\AppData\Local\Temp\nemux"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:3368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\7z7DA3B4B4\7z.dll

Filesize
1.1MB

MD5
0ffa2bff9e56e6122aec80d3c1119d83

SHA1
09b7eb124b8c83469ae7de6447d1b8a7f5c98c61

SHA256
609cba3a8704aa6f5e2623858402bc048de7198a3567a53183bf97de091a3e48

SHA512
42522bf850156577de397e527b8515b1bf0bdeceb170efae71d87c39a25c72c155a2fec6a88b5c3ae443752046f8840cd8afac9c42ed7bcf67aeb9e78aeb5f2e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\7z.exe

Filesize
292KB

MD5
97b382235264f18a53eff8e891997920

SHA1
cc0f3ad9411f54f70a2b1a1705e24048b06ea65c

SHA256
bf42783c293279c65b00e4f8b72be39e1cb0fcbe14d6679151b0d5e27fd8572d

SHA512
1e780698dbc0963ccbd73976da6898b3c0dc4b4e655a80563585518abd37a1a5561a980d035123011213a83c76320de6c08541caa71bfd6582eb93ff57672a83

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\ColaBoxChecker.exe

Filesize
4.0MB

MD5
839708e3f96cf055436fa08d6205263c

SHA1
a4579f8cb6b80fe3fd50099794f63eb51be3292f

SHA256
1373c5d006a5dbcd9b86cfff9a37616f1245d1333c4adcefc7cd18926b98d752

SHA512
ece67e031e06a0442d935e7d81d0eed57ae92b348b5d104423577478ce226e4a4bde834c54e31d33bfe6f574fb7798ba96886d9e8edb738edee6e7c9c43054cd

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\HyperVChecker.exe

Filesize
117KB

MD5
dbd84c6083e4badf4741d95ba3c9b5f8

SHA1
4a555adf8e0459bfd1145d9bd8d91b3fff94aad0

SHA256
9ff467bc5a1c377102d25da9fa9c24dcc4375f456510f71584f0714fdfb2af39

SHA512
fb5fe74f64254609e07d6642acf904562bb905cd7c14c6f85ba31bcdbaf06686c0586609ec4f5d2f8f55ff90334dcbb774a3a6e78df74bf1b1d0cd03dec21870

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\baseboard

Filesize
115B

MD5
cc2c841b0f756e6a3f4663a3063b1e2c

SHA1
b39a3dd54f9eb50ea92ba431018d4f5f75a2e8a7

SHA256
841e86c98f7786f83a4a928729292df3e47574cafb5c7dba589d4eee2ae4cffb

SHA512
2a606e9e57c2efcd7d35c5f9f77ce3eb74267ed4ac34d3be9fcb11219870e29b73a39afd2f8bd9afccaa81f58fe6b61fec6700e41b8105f3965da7a1b4f55670

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\config.ini

Filesize
346B

MD5
d00fb4c61a255b58ff09886c6c72461b

SHA1
4e4f7d7ae36f67a4d6fc8479f8400b3eb769e978

SHA256
77dec4d79e1e844a2156f101defc0fc81c138a989e8ba1c722c58feb91b3cd4a

SHA512
8494ab9fe0594f3ff7b0893ca3e25d6d0a706e546e92c5b662aa864affcefe5f9721a6a95f37f40cdacf39d27a23e2b3cd5dbca4d7b8909cd7c186209d4b46db

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\nemu-downloader.exe

Filesize
3.2MB

MD5
cdf8047ceae80d9cd9eb798a57bf6084

SHA1
8e7971401fada3099aed61849745fda37e1c0d32

SHA256
1f01a9abac64fae72e0a253ad9ffe2d62cd2967c1c2bc90fb956ac446fe2b11e

SHA512
ac366f38f39b935110192d1355147392ced5a21966cc22386804356dce24b2da7971a6a60d675689f93d74014d961bfb3b0c13cf06809b9f9feef580045e20dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z7DA3B4B4\skin.zip

Filesize
509KB

MD5
ecb43530caf9566c1b76d5af8d2097f1

SHA1
34562ada66cd1501fcb7411a1e1d86729fd7fdc0

SHA256
a12381f97aee2d91568f44b23e866ccc99f0ae5e5961f318ed24b72f4f5da80a

SHA512
4a243c0bc4dbaf892bee91ea7eff9e6a7732d3aa2df5bebd9a4bea2859a30a8511945ce3bb823f7ef921f2e1a98906fb676fce85f25fd5908646b3a2f5d02563

Download Submit
C:\Users\Admin\AppData\Local\Temp\nemux.zip

Filesize
22B

MD5
76cdb2bad9582d23c1f6f4d868218d6c

SHA1
b04f3ee8f5e43fa3b162981b50bb72fe1acabb33

SHA256
8739c76e681f900923b900c9df0ef75cf421d39cabb54650c4b9ad19b6a76d85

SHA512
5e2f959f36b66df0580a94f384c5fc1ceeec4b2a3925f062d7b68f21758b86581ac2adcfdde73a171a28496e758ef1b23ca4951c05455cdae9357cc3b5a5825f

Download Submit