gcleaner | 0ab9deb960f64a54e71ae295d9d42461ac02b3d29dd25e88b6d66e44f917adeb

Analysis

max time kernel
54s
max time network
55s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
13/01/2023, 12:31

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General

Target
file.exe
Size 1.5MB
Sample230113-pp2qeagh42
SHA256 0ab9deb960f64a54e71ae295d9d42461ac02b3d29dd25e88b6d66e44f917adeb
MD5 591ec232ea4a1626c7cd22e2b24f43e8
SHA1 02bef05b9e33a08b851998ba5010d3e36929b891
SHA512 2e242701154180d6036c5dcf20b436667c9864e649468bc0bf206fdf3cbd634e676499608a20d1aff2291ad6155d61e82d62f429eacae6ce0043e9ae11d92424
SSDEEP 49152:g2QVNYA57yOSp8AUdQWOzupX8Qm/NQEkATuCE/:NBAU4tpOyXPmF5RTY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

45.139.105.171
85.31.46.167
107.182.129.235
171.22.30.106

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

Executes dropped EXE 3 IoCs

pid	Process
1976	file.tmp
1032	NitFiles451.exe
768	MP9AuVvag9Q.exe

Loads dropped DLL 6 IoCs

pid	Process
2028	file.exe
1976	file.tmp
1976	file.tmp
1976	file.tmp
1976	file.tmp
1032	NitFiles451.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Nit Files\is-1ILMD.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-02BA8.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-UPKAJ.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-U8Q9N.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\is-TCU0O.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-R1PIT.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-O7IC1.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-6SC7S.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-NNIGJ.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\is-ISRMS.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\is-5VS44.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Nit Files\NitFiles451.exe	file.tmp
File created	C:\Program Files (x86)\Nit Files\unins000.dat	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-DN9VO.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\language\is-ML3AE.tmp	file.tmp
File created	C:\Program Files (x86)\Nit Files\is-ATTV3.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\Nit Files\unins000.dat	file.tmp

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
1948	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1032	NitFiles451.exe
1032	NitFiles451.exe
1032	NitFiles451.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1948	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 1976	2028	file.exe	28
PID 2028 wrote to memory of 1976	2028	file.exe	28
PID 2028 wrote to memory of 1976	2028	file.exe	28
PID 2028 wrote to memory of 1976	2028	file.exe	28
PID 2028 wrote to memory of 1976	2028	file.exe	28
PID 2028 wrote to memory of 1976	2028	file.exe	28
PID 2028 wrote to memory of 1976	2028	file.exe	28
PID 1976 wrote to memory of 1032	1976	file.tmp	29
PID 1976 wrote to memory of 1032	1976	file.tmp	29
PID 1976 wrote to memory of 1032	1976	file.tmp	29
PID 1976 wrote to memory of 1032	1976	file.tmp	29
PID 1032 wrote to memory of 768	1032	NitFiles451.exe	30
PID 1032 wrote to memory of 768	1032	NitFiles451.exe	30
PID 1032 wrote to memory of 768	1032	NitFiles451.exe	30
PID 1032 wrote to memory of 768	1032	NitFiles451.exe	30
PID 1032 wrote to memory of 1848	1032	NitFiles451.exe	33
PID 1032 wrote to memory of 1848	1032	NitFiles451.exe	33
PID 1032 wrote to memory of 1848	1032	NitFiles451.exe	33
PID 1032 wrote to memory of 1848	1032	NitFiles451.exe	33
PID 1848 wrote to memory of 1948	1848	cmd.exe	35
PID 1848 wrote to memory of 1948	1848	cmd.exe	35
PID 1848 wrote to memory of 1948	1848	cmd.exe	35
PID 1848 wrote to memory of 1948	1848	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\is-1VBIT.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1VBIT.tmp\file.tmp" /SL5="$70124,1311906,233984,C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1976
- - C:\Program Files (x86)\Nit Files\NitFiles451.exe
    "C:\Program Files (x86)\Nit Files\NitFiles451.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1032
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\MP9AuVvag9Q.exe
      4⤵
      Executes dropped EXE
      PID:768
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "NitFiles451.exe" /f & erase "C:\Program Files (x86)\Nit Files\NitFiles451.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1848
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "NitFiles451.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

NitFiles451.exe

Path C:\Program Files (x86)\Nit Files\NitFiles451.exe
Size 2.1MB
SHA256 c7856a0fd75f7d747292289ac0e7a2e2f48a5c6f0e7829cf3d33602b2cd8c545
MD5 2ed45e4798d046d134ec55f7a02c666e
SHA1 d79776f4fd5d8a7428bebacea89045c6caec3d9f
SHA512 1eb240d358a7bf509b5ed52d27d59a6d84c4cc20e9e20d87b5d236a32b8421caba2e8039f9dd839718696396d03b809d0b56536f3386659cfbd0f844836c2d36
SSDEEP 24576:AqAld7vujBsggSQVPKb8XhAOMwGnhRTZaQHkv7hAFOX5kbUBzXn:ARN21sggSQVZh9knhRdfC9SOJkazX
MD5 SHA1 SHA512 SSDEEP

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NitFiles451.exe

Path C:\Program Files (x86)\Nit Files\NitFiles451.exe
Size 2.1MB
SHA256 c7856a0fd75f7d747292289ac0e7a2e2f48a5c6f0e7829cf3d33602b2cd8c545
MD5 2ed45e4798d046d134ec55f7a02c666e
SHA1 d79776f4fd5d8a7428bebacea89045c6caec3d9f
SHA512 1eb240d358a7bf509b5ed52d27d59a6d84c4cc20e9e20d87b5d236a32b8421caba2e8039f9dd839718696396d03b809d0b56536f3386659cfbd0f844836c2d36
SSDEEP 24576:AqAld7vujBsggSQVPKb8XhAOMwGnhRTZaQHkv7hAFOX5kbUBzXn:ARN21sggSQVZh9knhRdfC9SOJkazX
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-1VBIT.tmp\file.tmp
Size 849KB
SHA256 6fbb6401d3de1f971f182f9292e817fbeee537725cd5a5974b2bd7bd90a26559
MD5 56c525b0e7751035562a3bd35096b17d
SHA1 befb8a8e73e296e95412b319bc20f76fb382d525
SHA512 75e793a12229ac68cc5ed92d97c1db55dbeb1712cb5377fc2323363e4ffd026f2e68c7852fa0eb6837c8ba7f5449a70160c3cadb49c062c4dc53cdbccdf6d354
SSDEEP 24576:xN/ac4cUrPN37qzHxA6odmL+tNE70tm8ffIMVbXEx9R/:xNSjrPN37qzHxA6odRkymJMVsT
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-1VBIT.tmp\file.tmp
Size 849KB
SHA256 6fbb6401d3de1f971f182f9292e817fbeee537725cd5a5974b2bd7bd90a26559
MD5 56c525b0e7751035562a3bd35096b17d
SHA1 befb8a8e73e296e95412b319bc20f76fb382d525
SHA512 75e793a12229ac68cc5ed92d97c1db55dbeb1712cb5377fc2323363e4ffd026f2e68c7852fa0eb6837c8ba7f5449a70160c3cadb49c062c4dc53cdbccdf6d354
SSDEEP 24576:xN/ac4cUrPN37qzHxA6odmL+tNE70tm8ffIMVbXEx9R/:xNSjrPN37qzHxA6odRkymJMVsT
MD5 SHA1 SHA512 SSDEEP

Submit Download

MP9AuVvag9Q.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\MP9AuVvag9Q.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

NitFiles451.exe

Path \Program Files (x86)\Nit Files\NitFiles451.exe
Size 2.1MB
SHA256 c7856a0fd75f7d747292289ac0e7a2e2f48a5c6f0e7829cf3d33602b2cd8c545
MD5 2ed45e4798d046d134ec55f7a02c666e
SHA1 d79776f4fd5d8a7428bebacea89045c6caec3d9f
SHA512 1eb240d358a7bf509b5ed52d27d59a6d84c4cc20e9e20d87b5d236a32b8421caba2e8039f9dd839718696396d03b809d0b56536f3386659cfbd0f844836c2d36
SSDEEP 24576:AqAld7vujBsggSQVPKb8XhAOMwGnhRTZaQHkv7hAFOX5kbUBzXn:ARN21sggSQVZh9knhRdfC9SOJkazX
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path \Users\Admin\AppData\Local\Temp\is-1VBIT.tmp\file.tmp
Size 849KB
SHA256 6fbb6401d3de1f971f182f9292e817fbeee537725cd5a5974b2bd7bd90a26559
MD5 56c525b0e7751035562a3bd35096b17d
SHA1 befb8a8e73e296e95412b319bc20f76fb382d525
SHA512 75e793a12229ac68cc5ed92d97c1db55dbeb1712cb5377fc2323363e4ffd026f2e68c7852fa0eb6837c8ba7f5449a70160c3cadb49c062c4dc53cdbccdf6d354
SSDEEP 24576:xN/ac4cUrPN37qzHxA6odmL+tNE70tm8ffIMVbXEx9R/:xNSjrPN37qzHxA6odRkymJMVsT
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path \Users\Admin\AppData\Local\Temp\is-9ANKP.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

Submit Download

_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-9ANKP.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

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_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-9ANKP.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

Submit Download

MP9AuVvag9Q.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\MP9AuVvag9Q.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/1032-71-0x0000000000400000-0x000000000141B000-memory.dmp

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memory/1032-82-0x0000000000400000-0x000000000141B000-memory.dmp

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memory/1032-86-0x0000000000400000-0x000000000141B000-memory.dmp

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memory/1032-72-0x0000000000400000-0x000000000141B000-memory.dmp

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memory/1032-73-0x0000000000400000-0x000000000141B000-memory.dmp

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memory/1032-77-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/1032-83-0x0000000000400000-0x000000000141B000-memory.dmp

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memory/1976-81-0x0000000003660000-0x000000000467B000-memory.dmp

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memory/1976-70-0x0000000003660000-0x000000000467B000-memory.dmp

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memory/2028-68-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2028-54-0x0000000075441000-0x0000000075443000-memory.dmp

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memory/2028-87-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2028-55-0x0000000000400000-0x0000000000440000-memory.dmp

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