0f2fc74204872d5d29737e90ace73bd23edaa2e5af8211669f2a90a0a4767ae7

Resubmissions

17/02/2024, 20:29

240217-y9yzpabb28 10

17/02/2024, 20:20

240217-y4ry7aba54 7

Analysis

max time kernel
75s
max time network
86s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2024, 20:20

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General

Target

$R0/Uninstall Launcher.exe
Size

135KB
MD5

ef8b4d2dbd39bf752672c17b089428bc
SHA1

2c226c30be53ba73118fee6265fe1b5332005977
SHA256

3d28cb5bc3836aaff61ac1ef7e9bf46acd78b84b715350709a8fbf4ece14f0d5
SHA512

31db5b2fc91cd2e9da863d75d7d69850b00b9383899a777f77ca22f3e95107e7a9885650f1a83f4fb272893f1a9f262ba4a9cf88fabde0712cff3aee74b48cd8
SSDEEP

3072:on77v00hEoDEtauAceA29i9qzFaH2tvhOEA1RJCir86SrSrv6Ia3l:o740Iwm29ds2t0EyL+yaV

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	Un_A.exe

Executes dropped EXE 1 IoCs

pid	Process
2312	Un_A.exe

Loads dropped DLL 6 IoCs

pid	Process
2312	Un_A.exe
2312	Un_A.exe
2312	Un_A.exe
2312	Un_A.exe
2312	Un_A.exe
2312	Un_A.exe

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

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
4700	tasklist.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2312	Un_A.exe
2312	Un_A.exe
4700	tasklist.exe
4700	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4700	tasklist.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 2312	4876	Uninstall Launcher.exe	83
PID 4876 wrote to memory of 2312	4876	Uninstall Launcher.exe	83
PID 4876 wrote to memory of 2312	4876	Uninstall Launcher.exe	83
PID 2312 wrote to memory of 3108	2312	Un_A.exe	84
PID 2312 wrote to memory of 3108	2312	Un_A.exe	84
PID 2312 wrote to memory of 3108	2312	Un_A.exe	84
PID 3108 wrote to memory of 4700	3108	cmd.exe	86
PID 3108 wrote to memory of 4700	3108	cmd.exe	86
PID 3108 wrote to memory of 4700	3108	cmd.exe	86
PID 3108 wrote to memory of 1564	3108	cmd.exe	87
PID 3108 wrote to memory of 1564	3108	cmd.exe	87
PID 3108 wrote to memory of 1564	3108	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Launcher.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Launcher.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2312
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq Launcher.exe" | %SYSTEMROOT%\System32\find.exe "Launcher.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3108
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq Launcher.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4700
  - - C:\Windows\SysWOW64\find.exe
      C:\Windows\System32\find.exe "Launcher.exe"
      4⤵
      PID:1564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Process Discovery

T1057

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\nsr8D6.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsr8D6.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsr8D6.tmp\WinShell.dll

Filesize
3KB

MD5
1cc7c37b7e0c8cd8bf04b6cc283e1e56

SHA1
0b9519763be6625bd5abce175dcc59c96d100d4c

SHA256
9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

SHA512
7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

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C:\Users\Admin\AppData\Local\Temp\nsr8D6.tmp\nsExec.dll

Filesize
6KB

MD5
ec0504e6b8a11d5aad43b296beeb84b2

SHA1
91b5ce085130c8c7194d66b2439ec9e1c206497c

SHA256
5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

SHA512
3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

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C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
135KB

MD5
ef8b4d2dbd39bf752672c17b089428bc

SHA1
2c226c30be53ba73118fee6265fe1b5332005977

SHA256
3d28cb5bc3836aaff61ac1ef7e9bf46acd78b84b715350709a8fbf4ece14f0d5

SHA512
31db5b2fc91cd2e9da863d75d7d69850b00b9383899a777f77ca22f3e95107e7a9885650f1a83f4fb272893f1a9f262ba4a9cf88fabde0712cff3aee74b48cd8

Download Submit