nymaim | 209e5d277024cbdffff6543358dd5df895d2b16796e59a5ea8afd61979394c5d

Analysis

max time kernel
52s
max time network
54s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
15/11/2022, 13:31

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General

Target
file.exe
Size 2.1MB
Sample221115-qsdcnaeb52
SHA256 209e5d277024cbdffff6543358dd5df895d2b16796e59a5ea8afd61979394c5d
MD5 90397cc57732577b7512ca7d0cc8a457
SHA1 4855a7966e9b972f5a8c06e9d8b12b265f5a3ca2
SHA512 e1b539e6e3110c99e73347e62feb6d3cc89f3cf8f80a7c7a6e92f6cc48bee6525b9c17d4707b78987667d2fe8935f8958e6a32f5cd2187d329aedb13bee38027
SSDEEP 49152:g2foSrDe6JsuqSWpdGb6s/nMirxcZ+2G/d3Q26I4URsA:NfoSDesT6CLMirxcM2GxE9A
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nymaim discovery trojan

Malware Config

Extracted

Family

nymaim

45.139.105.171
85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

Executes dropped EXE 3 IoCs

pid	Process
1756	is-CVLCS.tmp
688	glsearcher80.exe
580	So3S9IF8OGs.exe

Loads dropped DLL 6 IoCs

pid	Process
1260	file.exe
1756	is-CVLCS.tmp
1756	is-CVLCS.tmp
1756	is-CVLCS.tmp
1756	is-CVLCS.tmp
688	glsearcher80.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 12 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\glSearcher\is-6TT75.tmp	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\is-1EGTP.tmp	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\is-QVIV1.tmp	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\is-N32MI.tmp	is-CVLCS.tmp
File opened for modification	C:\Program Files (x86)\glSearcher\glsearcher80.exe	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\is-QG61N.tmp	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\is-QEJ8E.tmp	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\is-3MH1C.tmp	is-CVLCS.tmp
File opened for modification	C:\Program Files (x86)\glSearcher\unins000.dat	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\unins000.dat	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\is-MJ4KA.tmp	is-CVLCS.tmp
File created	C:\Program Files (x86)\glSearcher\is-CJL39.tmp	is-CVLCS.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
1848	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
688	glsearcher80.exe
688	glsearcher80.exe
688	glsearcher80.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1848	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 1756	1260	file.exe	28
PID 1260 wrote to memory of 1756	1260	file.exe	28
PID 1260 wrote to memory of 1756	1260	file.exe	28
PID 1260 wrote to memory of 1756	1260	file.exe	28
PID 1260 wrote to memory of 1756	1260	file.exe	28
PID 1260 wrote to memory of 1756	1260	file.exe	28
PID 1260 wrote to memory of 1756	1260	file.exe	28
PID 1756 wrote to memory of 688	1756	is-CVLCS.tmp	29
PID 1756 wrote to memory of 688	1756	is-CVLCS.tmp	29
PID 1756 wrote to memory of 688	1756	is-CVLCS.tmp	29
PID 1756 wrote to memory of 688	1756	is-CVLCS.tmp	29
PID 688 wrote to memory of 580	688	glsearcher80.exe	30
PID 688 wrote to memory of 580	688	glsearcher80.exe	30
PID 688 wrote to memory of 580	688	glsearcher80.exe	30
PID 688 wrote to memory of 580	688	glsearcher80.exe	30
PID 688 wrote to memory of 852	688	glsearcher80.exe	33
PID 688 wrote to memory of 852	688	glsearcher80.exe	33
PID 688 wrote to memory of 852	688	glsearcher80.exe	33
PID 688 wrote to memory of 852	688	glsearcher80.exe	33
PID 852 wrote to memory of 1848	852	cmd.exe	35
PID 852 wrote to memory of 1848	852	cmd.exe	35
PID 852 wrote to memory of 1848	852	cmd.exe	35
PID 852 wrote to memory of 1848	852	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:1260
- C:\Users\Admin\AppData\Local\Temp\is-6NG84.tmp\is-CVLCS.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-6NG84.tmp\is-CVLCS.tmp" /SL4 $A012C "C:\Users\Admin\AppData\Local\Temp\file.exe" 1932612 210432
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1756
- - C:\Program Files (x86)\glSearcher\glsearcher80.exe
    "C:\Program Files (x86)\glSearcher\glsearcher80.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:688
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\So3S9IF8OGs.exe
      4⤵
      Executes dropped EXE
      PID:580
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "glsearcher80.exe" /f & erase "C:\Program Files (x86)\glSearcher\glsearcher80.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:852
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "glsearcher80.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1848

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

glsearcher80.exe

Path C:\Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 7be70fbb7267f6b515303fb72f37ba6e31703a609aa47be0a9ae27717c778435
MD5 8bab9d4e80ad28a3a9f50b2728e377bf
SHA1 ca3cbab9d8cd1a7c949c020ba7eafcf98a36fd3b
SHA512 dc084bc1ac8b5ea9f6c67eda22b9b5b44d4852f419b35d101cfbf63368a13d3b5389fc26567168fbfca53b63283b8368895a78cff40b1354d3f3435ad7b8440d
SSDEEP 49152:TRYnHGRU0FNOPVSb1+/zSpvBUMMS5dhQLt0UoSE+H656z/kPxowejDo+:HOPkbuOxBUMMS5dhQ6UoL+H656z/kpoP
MD5 SHA1 SHA512 SSDEEP

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glsearcher80.exe

Path C:\Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 7be70fbb7267f6b515303fb72f37ba6e31703a609aa47be0a9ae27717c778435
MD5 8bab9d4e80ad28a3a9f50b2728e377bf
SHA1 ca3cbab9d8cd1a7c949c020ba7eafcf98a36fd3b
SHA512 dc084bc1ac8b5ea9f6c67eda22b9b5b44d4852f419b35d101cfbf63368a13d3b5389fc26567168fbfca53b63283b8368895a78cff40b1354d3f3435ad7b8440d
SSDEEP 49152:TRYnHGRU0FNOPVSb1+/zSpvBUMMS5dhQLt0UoSE+H656z/kPxowejDo+:HOPkbuOxBUMMS5dhQ6UoL+H656z/kpoP
MD5 SHA1 SHA512 SSDEEP

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is-CVLCS.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-6NG84.tmp\is-CVLCS.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

Submit Download

is-CVLCS.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-6NG84.tmp\is-CVLCS.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

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So3S9IF8OGs.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\So3S9IF8OGs.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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glsearcher80.exe

Path \Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 7be70fbb7267f6b515303fb72f37ba6e31703a609aa47be0a9ae27717c778435
MD5 8bab9d4e80ad28a3a9f50b2728e377bf
SHA1 ca3cbab9d8cd1a7c949c020ba7eafcf98a36fd3b
SHA512 dc084bc1ac8b5ea9f6c67eda22b9b5b44d4852f419b35d101cfbf63368a13d3b5389fc26567168fbfca53b63283b8368895a78cff40b1354d3f3435ad7b8440d
SSDEEP 49152:TRYnHGRU0FNOPVSb1+/zSpvBUMMS5dhQLt0UoSE+H656z/kPxowejDo+:HOPkbuOxBUMMS5dhQ6UoL+H656z/kpoP
MD5 SHA1 SHA512 SSDEEP

Submit Download

is-CVLCS.tmp

Path \Users\Admin\AppData\Local\Temp\is-6NG84.tmp\is-CVLCS.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

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

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_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-9ANGR.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-9ANGR.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

So3S9IF8OGs.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\So3S9IF8OGs.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/688-70-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/688-82-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/688-85-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/688-71-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/688-73-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/688-77-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/1260-66-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1260-54-0x0000000075291000-0x0000000075293000-memory.dmp

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memory/1260-86-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1260-55-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1756-81-0x0000000003250000-0x00000000042F8000-memory.dmp

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memory/1756-69-0x0000000003250000-0x00000000042F8000-memory.dmp

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