f0031f9d7f25d4d29581879f62565a5a565995899adc60213f9e218147c78593

Analysis

max time kernel
40s
max time network
41s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
14-06-2024 20:44

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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

pid	Process
2312	nemu-downloader.exe
2136	ColaBoxChecker.exe
2668	HyperVChecker.exe
4416	HyperVChecker.exe
988	7z.exe
1556	7z.exe

Loads dropped DLL 2 IoCs

pid	Process
988	7z.exe
1556	7z.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2352	2312	WerFault.exe	77

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000_Classes\Local Settings\MuiCache	MiniSearchHost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2312	nemu-downloader.exe
2312	nemu-downloader.exe
2312	nemu-downloader.exe
2312	nemu-downloader.exe

Suspicious behavior: LoadsDriver 4 IoCs

pid	Process
680	Process not Found
680	Process not Found
680	Process not Found
680	Process not Found

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeRestorePrivilege	988	7z.exe
Token: 35	988	7z.exe
Token: SeSecurityPrivilege	988	7z.exe
Token: SeSecurityPrivilege	988	7z.exe
Token: SeRestorePrivilege	1556	7z.exe
Token: 35	1556	7z.exe
Token: SeSecurityPrivilege	1556	7z.exe
Token: SeSecurityPrivilege	1556	7z.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3044	MiniSearchHost.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3516 wrote to memory of 2312	3516	MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe	77
PID 3516 wrote to memory of 2312	3516	MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe	77
PID 3516 wrote to memory of 2312	3516	MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe	77
PID 2312 wrote to memory of 2136	2312	nemu-downloader.exe	80
PID 2312 wrote to memory of 2136	2312	nemu-downloader.exe	80
PID 2312 wrote to memory of 2136	2312	nemu-downloader.exe	80
PID 2312 wrote to memory of 2668	2312	nemu-downloader.exe	85
PID 2312 wrote to memory of 2668	2312	nemu-downloader.exe	85
PID 2312 wrote to memory of 4416	2312	nemu-downloader.exe	87
PID 2312 wrote to memory of 4416	2312	nemu-downloader.exe	87
PID 2312 wrote to memory of 988	2312	nemu-downloader.exe	89
PID 2312 wrote to memory of 988	2312	nemu-downloader.exe	89
PID 2312 wrote to memory of 988	2312	nemu-downloader.exe	89
PID 2312 wrote to memory of 1556	2312	nemu-downloader.exe	91
PID 2312 wrote to memory of 1556	2312	nemu-downloader.exe	91
PID 2312 wrote to memory of 1556	2312	nemu-downloader.exe	91

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:3516
- C:\Users\Admin\AppData\Local\Temp\7z77155DBC\nemu-downloader.exe
  C:\Users\Admin\AppData\Local\Temp\7z77155DBC\nemu-downloader.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2312
- - C:\Users\Admin\AppData\Local\Temp\7z77155DBC\ColaBoxChecker.exe
    "C:\Users\Admin\AppData\Local\Temp\7z77155DBC\ColaBoxChecker.exe" checker /baseboard
    3⤵
    - Executes dropped EXE
    PID:2136
- - C:\Users\Admin\AppData\Local\Temp\7z77155DBC\HyperVChecker.exe
    "C:\Users\Admin\AppData\Local\Temp\7z77155DBC\HyperVChecker.exe"
    3⤵
    - Executes dropped EXE
    PID:2668
- - C:\Users\Admin\AppData\Local\Temp\7z77155DBC\HyperVChecker.exe
    "C:\Users\Admin\AppData\Local\Temp\7z77155DBC\HyperVChecker.exe"
    3⤵
    - Executes dropped EXE
    PID:4416
- - C:\Users\Admin\AppData\Local\Temp\7z77155DBC\7z.exe
    "C:\Users\Admin\AppData\Local\Temp\7z77155DBC\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:988
- - C:\Users\Admin\AppData\Local\Temp\7z77155DBC\7z.exe
    "C:\Users\Admin\AppData\Local\Temp\7z77155DBC\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:1556
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2312 -s 964
    3⤵
    - Program crash
    PID:2352

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:3044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2312 -ip 2312
1⤵
PID:892

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\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

Filesize
10KB

MD5
18951ad4190ed728ba23e932e0c6e0db

SHA1
fa2d16fcbc3defd07cb8f21d8ea4793a21f261f0

SHA256
66607b009c345a8e70fc1e58ab8a13bbea0e370c8d75f16d2cce5b876a748915

SHA512
a67237089efa8615747bdc6cfe0afc977dc54cfd624a8d2e5124a441c204f1ec58ee7cfbbc105ddc2c18d4f254b9e124d71630bcdba0253d41a96890104f2fff

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z77155DBC\7z.dll

Filesize
1.1MB

MD5
0ffa2bff9e56e6122aec80d3c1119d83

SHA1
09b7eb124b8c83469ae7de6447d1b8a7f5c98c61

SHA256
609cba3a8704aa6f5e2623858402bc048de7198a3567a53183bf97de091a3e48

SHA512
42522bf850156577de397e527b8515b1bf0bdeceb170efae71d87c39a25c72c155a2fec6a88b5c3ae443752046f8840cd8afac9c42ed7bcf67aeb9e78aeb5f2e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z77155DBC\7z.exe

Filesize
292KB

MD5
97b382235264f18a53eff8e891997920

SHA1
cc0f3ad9411f54f70a2b1a1705e24048b06ea65c

SHA256
bf42783c293279c65b00e4f8b72be39e1cb0fcbe14d6679151b0d5e27fd8572d

SHA512
1e780698dbc0963ccbd73976da6898b3c0dc4b4e655a80563585518abd37a1a5561a980d035123011213a83c76320de6c08541caa71bfd6582eb93ff57672a83

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z77155DBC\ColaBoxChecker.exe

Filesize
4.0MB

MD5
839708e3f96cf055436fa08d6205263c

SHA1
a4579f8cb6b80fe3fd50099794f63eb51be3292f

SHA256
1373c5d006a5dbcd9b86cfff9a37616f1245d1333c4adcefc7cd18926b98d752

SHA512
ece67e031e06a0442d935e7d81d0eed57ae92b348b5d104423577478ce226e4a4bde834c54e31d33bfe6f574fb7798ba96886d9e8edb738edee6e7c9c43054cd

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z77155DBC\HyperVChecker.exe

Filesize
117KB

MD5
dbd84c6083e4badf4741d95ba3c9b5f8

SHA1
4a555adf8e0459bfd1145d9bd8d91b3fff94aad0

SHA256
9ff467bc5a1c377102d25da9fa9c24dcc4375f456510f71584f0714fdfb2af39

SHA512
fb5fe74f64254609e07d6642acf904562bb905cd7c14c6f85ba31bcdbaf06686c0586609ec4f5d2f8f55ff90334dcbb774a3a6e78df74bf1b1d0cd03dec21870

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z77155DBC\baseboard

Filesize
115B

MD5
1df904851d72d96f12b503130cdabfa9

SHA1
7df5e990014c510fcf9868bab08a60419886af2a

SHA256
e72b4f0cdb7240c2da46c545bb268648eb4fddafe11e9397e3e08d3bc494375e

SHA512
7684e0eb51fa88f4cb964395ef844f8e3e6a6c6f533742c7bf466d2573c675fd5b77ead6bb590f256b24478623a82df5c760ca2336276c9522a52d9dd08ccc19

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z77155DBC\config.ini

Filesize
346B

MD5
d00fb4c61a255b58ff09886c6c72461b

SHA1
4e4f7d7ae36f67a4d6fc8479f8400b3eb769e978

SHA256
77dec4d79e1e844a2156f101defc0fc81c138a989e8ba1c722c58feb91b3cd4a

SHA512
8494ab9fe0594f3ff7b0893ca3e25d6d0a706e546e92c5b662aa864affcefe5f9721a6a95f37f40cdacf39d27a23e2b3cd5dbca4d7b8909cd7c186209d4b46db

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z77155DBC\nemu-downloader.exe

Filesize
3.2MB

MD5
cdf8047ceae80d9cd9eb798a57bf6084

SHA1
8e7971401fada3099aed61849745fda37e1c0d32

SHA256
1f01a9abac64fae72e0a253ad9ffe2d62cd2967c1c2bc90fb956ac446fe2b11e

SHA512
ac366f38f39b935110192d1355147392ced5a21966cc22386804356dce24b2da7971a6a60d675689f93d74014d961bfb3b0c13cf06809b9f9feef580045e20dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z77155DBC\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